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diff --git a/gcc-4.8/INSTALL/README b/gcc-4.8/INSTALL/README deleted file mode 100644 index 6d1979105..000000000 --- a/gcc-4.8/INSTALL/README +++ /dev/null @@ -1,7 +0,0 @@ -This directory has been obsoleted for GCC snapshots and CVS access. - -For releases the installation documentation is generated from -gcc/doc/install.texi and copied into this directory. - -To read this documentation, please point your HTML browser to "index.html". -The latest version is always available at http://gcc.gnu.org/install/ . diff --git a/gcc-4.8/INSTALL/binaries.html b/gcc-4.8/INSTALL/binaries.html deleted file mode 100644 index ccd8b3d43..000000000 --- a/gcc-4.8/INSTALL/binaries.html +++ /dev/null @@ -1,115 +0,0 @@ -<html lang="en"> -<head> -<title>Installing GCC: Binaries</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Installing GCC: Binaries"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Installing GCC: Binaries</h1> -<a name="index-Binaries-1"></a><a name="index-Installing-GCC_003a-Binaries-2"></a> -We are often asked about pre-compiled versions of GCC. While we cannot -provide these for all platforms, below you'll find links to binaries for -various platforms where creating them by yourself is not easy due to various -reasons. - - <p>Please note that we did not create these binaries, nor do we -support them. If you have any problems installing them, please -contact their makers. - - <ul> -<li>AIX: - <ul> -<li><a href="http://www.bullfreeware.com">Bull's Freeware and Shareware Archive for AIX</a>; - - <li><a href="http://pware.hvcc.edu">Hudson Valley Community College Open Source Software for IBM System p</a>; - - <li><a href="http://www.perzl.org/aix/">AIX 5L and 6 Open Source Packages</a>. -</ul> - - <li>DOS—<a href="http://www.delorie.com/djgpp/">DJGPP</a>. - - <li>Renesas H8/300[HS]—<a href="http://h8300-hms.sourceforge.net/">GNU Development Tools for the Renesas H8/300[HS] Series</a>. - - <li>HP-UX: - <ul> -<li><a href="http://hpux.connect.org.uk/">HP-UX Porting Center</a>; - - <li><a href="ftp://sunsite.informatik.rwth-aachen.de/pub/packages/gcc_hpux/">Binaries for HP-UX 11.00 at Aachen University of Technology</a>. -</ul> - - <li><a href="http://www.sco.com/skunkware/devtools/index.html#gcc">SCO OpenServer/Unixware</a>. - - <li>Solaris 2 (SPARC, Intel): - <ul> -<li><a href="http://www.sunfreeware.com/">Sunfreeware</a> - - <li><a href="http://www.blastwave.org/">Blastwave</a> - - <li><a href="http://www.opencsw.org/">OpenCSW</a> - - <li><a href="http://jupiterrise.com/tgcware/">TGCware</a> -</ul> - - <li>Microsoft Windows: - <ul> -<li>The <a href="http://sourceware.org/cygwin/">Cygwin</a> project; -<li>The <a href="http://www.mingw.org/">MinGW</a> project. -</ul> - - <li><a href="ftp://ftp.thewrittenword.com/packages/by-name/">The Written Word</a> offers binaries for -AIX 4.3.3, 5.1 and 5.2, -GNU/Linux (i386), -HP-UX 10.20, 11.00, and 11.11, and -Solaris/SPARC 2.5.1, 2.6, 7, 8, 9 and 10. - - <li><a href="http://www.openpkg.org/">OpenPKG</a> offers binaries for quite a -number of platforms. - - <li>The <a href="http://gcc.gnu.org/wiki/GFortranBinaries">GFortran Wiki</a> has -links to GNU Fortran binaries for several platforms. -</ul> - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***Specific**************************************************************** --> -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/build.html b/gcc-4.8/INSTALL/build.html deleted file mode 100644 index 0b5eed579..000000000 --- a/gcc-4.8/INSTALL/build.html +++ /dev/null @@ -1,378 +0,0 @@ -<html lang="en"> -<head> -<title>Installing GCC: Building</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Installing GCC: Building"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Installing GCC: Building</h1> -<a name="index-Installing-GCC_003a-Building-1"></a> -Now that GCC is configured, you are ready to build the compiler and -runtime libraries. - - <p>Some commands executed when making the compiler may fail (return a -nonzero status) and be ignored by <samp><span class="command">make</span></samp>. These failures, which -are often due to files that were not found, are expected, and can safely -be ignored. - - <p>It is normal to have compiler warnings when compiling certain files. -Unless you are a GCC developer, you can generally ignore these warnings -unless they cause compilation to fail. Developers should attempt to fix -any warnings encountered, however they can temporarily continue past -warnings-as-errors by specifying the configure flag -<samp><span class="option">--disable-werror</span></samp>. - - <p>On certain old systems, defining certain environment variables such as -<samp><span class="env">CC</span></samp> can interfere with the functioning of <samp><span class="command">make</span></samp>. - - <p>If you encounter seemingly strange errors when trying to build the -compiler in a directory other than the source directory, it could be -because you have previously configured the compiler in the source -directory. Make sure you have done all the necessary preparations. - - <p>If you build GCC on a BSD system using a directory stored in an old System -V file system, problems may occur in running <samp><span class="command">fixincludes</span></samp> if the -System V file system doesn't support symbolic links. These problems -result in a failure to fix the declaration of <code>size_t</code> in -<samp><span class="file">sys/types.h</span></samp>. If you find that <code>size_t</code> is a signed type and -that type mismatches occur, this could be the cause. - - <p>The solution is not to use such a directory for building GCC. - - <p>Similarly, when building from SVN or snapshots, or if you modify -<samp><span class="file">*.l</span></samp> files, you need the Flex lexical analyzer generator -installed. If you do not modify <samp><span class="file">*.l</span></samp> files, releases contain -the Flex-generated files and you do not need Flex installed to build -them. There is still one Flex-based lexical analyzer (part of the -build machinery, not of GCC itself) that is used even if you only -build the C front end. - - <p>When building from SVN or snapshots, or if you modify Texinfo -documentation, you need version 4.7 or later of Texinfo installed if you -want Info documentation to be regenerated. Releases contain Info -documentation pre-built for the unmodified documentation in the release. - -<h3 class="section"><a name="TOC0"></a>Building a native compiler</h3> - -<p>For a native build, the default configuration is to perform -a 3-stage bootstrap of the compiler when ‘<samp><span class="samp">make</span></samp>’ is invoked. -This will build the entire GCC system and ensure that it compiles -itself correctly. It can be disabled with the <samp><span class="option">--disable-bootstrap</span></samp> -parameter to ‘<samp><span class="samp">configure</span></samp>’, but bootstrapping is suggested because -the compiler will be tested more completely and could also have -better performance. - - <p>The bootstrapping process will complete the following steps: - - <ul> -<li>Build tools necessary to build the compiler. - - <li>Perform a 3-stage bootstrap of the compiler. This includes building -three times the target tools for use by the compiler such as binutils -(bfd, binutils, gas, gprof, ld, and opcodes) if they have been -individually linked or moved into the top level GCC source tree before -configuring. - - <li>Perform a comparison test of the stage2 and stage3 compilers. - - <li>Build runtime libraries using the stage3 compiler from the previous step. - - </ul> - - <p>If you are short on disk space you might consider ‘<samp><span class="samp">make -bootstrap-lean</span></samp>’ instead. The sequence of compilation is the -same described above, but object files from the stage1 and -stage2 of the 3-stage bootstrap of the compiler are deleted as -soon as they are no longer needed. - - <p>If you wish to use non-default GCC flags when compiling the stage2 -and stage3 compilers, set <code>BOOT_CFLAGS</code> on the command line when -doing ‘<samp><span class="samp">make</span></samp>’. For example, if you want to save additional space -during the bootstrap and in the final installation as well, you can -build the compiler binaries without debugging information as in the -following example. This will save roughly 40% of disk space both for -the bootstrap and the final installation. (Libraries will still contain -debugging information.) - -<pre class="smallexample"> make BOOT_CFLAGS='-O' bootstrap -</pre> - <p>You can place non-default optimization flags into <code>BOOT_CFLAGS</code>; they -are less well tested here than the default of ‘<samp><span class="samp">-g -O2</span></samp>’, but should -still work. In a few cases, you may find that you need to specify special -flags such as <samp><span class="option">-msoft-float</span></samp> here to complete the bootstrap; or, -if the native compiler miscompiles the stage1 compiler, you may need -to work around this, by choosing <code>BOOT_CFLAGS</code> to avoid the parts -of the stage1 compiler that were miscompiled, or by using ‘<samp><span class="samp">make -bootstrap4</span></samp>’ to increase the number of stages of bootstrap. - - <p><code>BOOT_CFLAGS</code> does not apply to bootstrapped target libraries. -Since these are always compiled with the compiler currently being -bootstrapped, you can use <code>CFLAGS_FOR_TARGET</code> to modify their -compilation flags, as for non-bootstrapped target libraries. -Again, if the native compiler miscompiles the stage1 compiler, you may -need to work around this by avoiding non-working parts of the stage1 -compiler. Use <code>STAGE1_TFLAGS</code> to this end. - - <p>If you used the flag <samp><span class="option">--enable-languages=...</span></samp> to restrict -the compilers to be built, only those you've actually enabled will be -built. This will of course only build those runtime libraries, for -which the particular compiler has been built. Please note, -that re-defining <samp><span class="env">LANGUAGES</span></samp> when calling ‘<samp><span class="samp">make</span></samp>’ -<strong>does not</strong> work anymore! - - <p>If the comparison of stage2 and stage3 fails, this normally indicates -that the stage2 compiler has compiled GCC incorrectly, and is therefore -a potentially serious bug which you should investigate and report. (On -a few systems, meaningful comparison of object files is impossible; they -always appear “different”. If you encounter this problem, you will -need to disable comparison in the <samp><span class="file">Makefile</span></samp>.) - - <p>If you do not want to bootstrap your compiler, you can configure with -<samp><span class="option">--disable-bootstrap</span></samp>. In particular cases, you may want to -bootstrap your compiler even if the target system is not the same as -the one you are building on: for example, you could build a -<code>powerpc-unknown-linux-gnu</code> toolchain on a -<code>powerpc64-unknown-linux-gnu</code> host. In this case, pass -<samp><span class="option">--enable-bootstrap</span></samp> to the configure script. - - <p><code>BUILD_CONFIG</code> can be used to bring in additional customization -to the build. It can be set to a whitespace-separated list of names. -For each such <code>NAME</code>, top-level <samp><span class="file">config/</span><code>NAME</code><span class="file">.mk</span></samp> will -be included by the top-level <samp><span class="file">Makefile</span></samp>, bringing in any settings -it contains. The default <code>BUILD_CONFIG</code> can be set using the -configure option <samp><span class="option">--with-build-config=</span><code>NAME</code><span class="option">...</span></samp>. Some -examples of supported build configurations are: - - <dl> -<dt>‘<samp><span class="samp">bootstrap-O1</span></samp>’<dd>Removes any <samp><span class="option">-O</span></samp>-started option from <code>BOOT_CFLAGS</code>, and adds -<samp><span class="option">-O1</span></samp> to it. ‘<samp><span class="samp">BUILD_CONFIG=bootstrap-O1</span></samp>’ is equivalent to -‘<samp><span class="samp">BOOT_CFLAGS='-g -O1'</span></samp>’. - - <br><dt>‘<samp><span class="samp">bootstrap-O3</span></samp>’<dd>Analogous to <code>bootstrap-O1</code>. - - <br><dt>‘<samp><span class="samp">bootstrap-lto</span></samp>’<dd>Enables Link-Time Optimization for host tools during bootstrapping. -‘<samp><span class="samp">BUILD_CONFIG=bootstrap-lto</span></samp>’ is equivalent to adding -<samp><span class="option">-flto</span></samp> to ‘<samp><span class="samp">BOOT_CFLAGS</span></samp>’. - - <br><dt>‘<samp><span class="samp">bootstrap-debug</span></samp>’<dd>Verifies that the compiler generates the same executable code, whether -or not it is asked to emit debug information. To this end, this -option builds stage2 host programs without debug information, and uses -<samp><span class="file">contrib/compare-debug</span></samp> to compare them with the stripped stage3 -object files. If <code>BOOT_CFLAGS</code> is overridden so as to not enable -debug information, stage2 will have it, and stage3 won't. This option -is enabled by default when GCC bootstrapping is enabled, if -<code>strip</code> can turn object files compiled with and without debug -info into identical object files. In addition to better test -coverage, this option makes default bootstraps faster and leaner. - - <br><dt>‘<samp><span class="samp">bootstrap-debug-big</span></samp>’<dd>Rather than comparing stripped object files, as in -<code>bootstrap-debug</code>, this option saves internal compiler dumps -during stage2 and stage3 and compares them as well, which helps catch -additional potential problems, but at a great cost in terms of disk -space. It can be specified in addition to ‘<samp><span class="samp">bootstrap-debug</span></samp>’. - - <br><dt>‘<samp><span class="samp">bootstrap-debug-lean</span></samp>’<dd>This option saves disk space compared with <code>bootstrap-debug-big</code>, -but at the expense of some recompilation. Instead of saving the dumps -of stage2 and stage3 until the final compare, it uses -<samp><span class="option">-fcompare-debug</span></samp> to generate, compare and remove the dumps -during stage3, repeating the compilation that already took place in -stage2, whose dumps were not saved. - - <br><dt>‘<samp><span class="samp">bootstrap-debug-lib</span></samp>’<dd>This option tests executable code invariance over debug information -generation on target libraries, just like <code>bootstrap-debug-lean</code> -tests it on host programs. It builds stage3 libraries with -<samp><span class="option">-fcompare-debug</span></samp>, and it can be used along with any of the -<code>bootstrap-debug</code> options above. - - <p>There aren't <code>-lean</code> or <code>-big</code> counterparts to this option -because most libraries are only build in stage3, so bootstrap compares -would not get significant coverage. Moreover, the few libraries built -in stage2 are used in stage3 host programs, so we wouldn't want to -compile stage2 libraries with different options for comparison purposes. - - <br><dt>‘<samp><span class="samp">bootstrap-debug-ckovw</span></samp>’<dd>Arranges for error messages to be issued if the compiler built on any -stage is run without the option <samp><span class="option">-fcompare-debug</span></samp>. This is -useful to verify the full <samp><span class="option">-fcompare-debug</span></samp> testing coverage. It -must be used along with <code>bootstrap-debug-lean</code> and -<code>bootstrap-debug-lib</code>. - - <br><dt>‘<samp><span class="samp">bootstrap-time</span></samp>’<dd>Arranges for the run time of each program started by the GCC driver, -built in any stage, to be logged to <samp><span class="file">time.log</span></samp>, in the top level of -the build tree. - - </dl> - -<h3 class="section"><a name="TOC1"></a>Building a cross compiler</h3> - -<p>When building a cross compiler, it is not generally possible to do a -3-stage bootstrap of the compiler. This makes for an interesting problem -as parts of GCC can only be built with GCC. - - <p>To build a cross compiler, we recommend first building and installing a -native compiler. You can then use the native GCC compiler to build the -cross compiler. The installed native compiler needs to be GCC version -2.95 or later. - - <p>If the cross compiler is to be built with support for the Java -programming language and the ability to compile .java source files is -desired, the installed native compiler used to build the cross -compiler needs to be the same GCC version as the cross compiler. In -addition the cross compiler needs to be configured with -<samp><span class="option">--with-ecj-jar=...</span></samp>. - - <p>Assuming you have already installed a native copy of GCC and configured -your cross compiler, issue the command <samp><span class="command">make</span></samp>, which performs the -following steps: - - <ul> -<li>Build host tools necessary to build the compiler. - - <li>Build target tools for use by the compiler such as binutils (bfd, -binutils, gas, gprof, ld, and opcodes) -if they have been individually linked or moved into the top level GCC source -tree before configuring. - - <li>Build the compiler (single stage only). - - <li>Build runtime libraries using the compiler from the previous step. -</ul> - - <p>Note that if an error occurs in any step the make process will exit. - - <p>If you are not building GNU binutils in the same source tree as GCC, -you will need a cross-assembler and cross-linker installed before -configuring GCC. Put them in the directory -<samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/bin</span></samp>. Here is a table of the tools -you should put in this directory: - - <dl> -<dt><samp><span class="file">as</span></samp><dd>This should be the cross-assembler. - - <br><dt><samp><span class="file">ld</span></samp><dd>This should be the cross-linker. - - <br><dt><samp><span class="file">ar</span></samp><dd>This should be the cross-archiver: a program which can manipulate -archive files (linker libraries) in the target machine's format. - - <br><dt><samp><span class="file">ranlib</span></samp><dd>This should be a program to construct a symbol table in an archive file. -</dl> - - <p>The installation of GCC will find these programs in that directory, -and copy or link them to the proper place to for the cross-compiler to -find them when run later. - - <p>The easiest way to provide these files is to build the Binutils package. -Configure it with the same <samp><span class="option">--host</span></samp> and <samp><span class="option">--target</span></samp> -options that you use for configuring GCC, then build and install -them. They install their executables automatically into the proper -directory. Alas, they do not support all the targets that GCC -supports. - - <p>If you are not building a C library in the same source tree as GCC, -you should also provide the target libraries and headers before -configuring GCC, specifying the directories with -<samp><span class="option">--with-sysroot</span></samp> or <samp><span class="option">--with-headers</span></samp> and -<samp><span class="option">--with-libs</span></samp>. Many targets also require “start files” such -as <samp><span class="file">crt0.o</span></samp> and -<samp><span class="file">crtn.o</span></samp> which are linked into each executable. There may be several -alternatives for <samp><span class="file">crt0.o</span></samp>, for use with profiling or other -compilation options. Check your target's definition of -<code>STARTFILE_SPEC</code> to find out what start files it uses. - -<h3 class="section"><a name="TOC2"></a>Building in parallel</h3> - -<p>GNU Make 3.80 and above, which is necessary to build GCC, support -building in parallel. To activate this, you can use ‘<samp><span class="samp">make -j 2</span></samp>’ -instead of ‘<samp><span class="samp">make</span></samp>’. You can also specify a bigger number, and -in most cases using a value greater than the number of processors in -your machine will result in fewer and shorter I/O latency hits, thus -improving overall throughput; this is especially true for slow drives -and network filesystems. - -<h3 class="section"><a name="TOC3"></a>Building the Ada compiler</h3> - -<p>In order to build GNAT, the Ada compiler, you need a working GNAT -compiler (GCC version 4.0 or later). -This includes GNAT tools such as <samp><span class="command">gnatmake</span></samp> and -<samp><span class="command">gnatlink</span></samp>, since the Ada front end is written in Ada and -uses some GNAT-specific extensions. - - <p>In order to build a cross compiler, it is suggested to install -the new compiler as native first, and then use it to build the cross -compiler. - - <p><samp><span class="command">configure</span></samp> does not test whether the GNAT installation works -and has a sufficiently recent version; if too old a GNAT version is -installed, the build will fail unless <samp><span class="option">--enable-languages</span></samp> is -used to disable building the Ada front end. - - <p><samp><span class="env">ADA_INCLUDE_PATH</span></samp> and <samp><span class="env">ADA_OBJECT_PATH</span></samp> environment variables -must not be set when building the Ada compiler, the Ada tools, or the -Ada runtime libraries. You can check that your build environment is clean -by verifying that ‘<samp><span class="samp">gnatls -v</span></samp>’ lists only one explicit path in each -section. - -<h3 class="section"><a name="TOC4"></a>Building with profile feedback</h3> - -<p>It is possible to use profile feedback to optimize the compiler itself. This -should result in a faster compiler binary. Experiments done on x86 using gcc -3.3 showed approximately 7 percent speedup on compiling C programs. To -bootstrap the compiler with profile feedback, use <code>make profiledbootstrap</code>. - - <p>When ‘<samp><span class="samp">make profiledbootstrap</span></samp>’ is run, it will first build a <code>stage1</code> -compiler. This compiler is used to build a <code>stageprofile</code> compiler -instrumented to collect execution counts of instruction and branch -probabilities. Then runtime libraries are compiled with profile collected. -Finally a <code>stagefeedback</code> compiler is built using the information collected. - - <p>Unlike standard bootstrap, several additional restrictions apply. The -compiler used to build <code>stage1</code> needs to support a 64-bit integral type. -It is recommended to only use GCC for this. Also parallel make is currently -not supported since collisions in profile collecting may occur. - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***Testing***************************************************************** --> -<!-- ***Final install*********************************************************** --> -<!-- ***Binaries**************************************************************** --> -<!-- ***Specific**************************************************************** --> -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/configure.html b/gcc-4.8/INSTALL/configure.html deleted file mode 100644 index 9e6e556e0..000000000 --- a/gcc-4.8/INSTALL/configure.html +++ /dev/null @@ -1,1293 +0,0 @@ -<html lang="en"> -<head> -<title>Installing GCC: Configuration</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Installing GCC: Configuration"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Installing GCC: Configuration</h1> -<a name="index-Configuration-1"></a><a name="index-Installing-GCC_003a-Configuration-2"></a> -Like most GNU software, GCC must be configured before it can be built. -This document describes the recommended configuration procedure -for both native and cross targets. - - <p>We use <var>srcdir</var> to refer to the toplevel source directory for -GCC; we use <var>objdir</var> to refer to the toplevel build/object directory. - - <p>If you obtained the sources via SVN, <var>srcdir</var> must refer to the top -<samp><span class="file">gcc</span></samp> directory, the one where the <samp><span class="file">MAINTAINERS</span></samp> file can be -found, and not its <samp><span class="file">gcc</span></samp> subdirectory, otherwise the build will fail. - - <p>If either <var>srcdir</var> or <var>objdir</var> is located on an automounted NFS -file system, the shell's built-in <samp><span class="command">pwd</span></samp> command will return -temporary pathnames. Using these can lead to various sorts of build -problems. To avoid this issue, set the <samp><span class="env">PWDCMD</span></samp> environment -variable to an automounter-aware <samp><span class="command">pwd</span></samp> command, e.g., -<samp><span class="command">pawd</span></samp> or ‘<samp><span class="samp">amq -w</span></samp>’, during the configuration and build -phases. - - <p>First, we <strong>highly</strong> recommend that GCC be built into a -separate directory from the sources which does <strong>not</strong> reside -within the source tree. This is how we generally build GCC; building -where <var>srcdir</var> == <var>objdir</var> should still work, but doesn't -get extensive testing; building where <var>objdir</var> is a subdirectory -of <var>srcdir</var> is unsupported. - - <p>If you have previously built GCC in the same directory for a -different target machine, do ‘<samp><span class="samp">make distclean</span></samp>’ to delete all files -that might be invalid. One of the files this deletes is <samp><span class="file">Makefile</span></samp>; -if ‘<samp><span class="samp">make distclean</span></samp>’ complains that <samp><span class="file">Makefile</span></samp> does not exist -or issues a message like “don't know how to make distclean” it probably -means that the directory is already suitably clean. However, with the -recommended method of building in a separate <var>objdir</var>, you should -simply use a different <var>objdir</var> for each target. - - <p>Second, when configuring a native system, either <samp><span class="command">cc</span></samp> or -<samp><span class="command">gcc</span></samp> must be in your path or you must set <samp><span class="env">CC</span></samp> in -your environment before running configure. Otherwise the configuration -scripts may fail. - - <p>To configure GCC: - -<pre class="smallexample"> % mkdir <var>objdir</var> - % cd <var>objdir</var> - % <var>srcdir</var>/configure [<var>options</var>] [<var>target</var>] -</pre> - <h3 class="heading"><a name="TOC0"></a>Distributor options</h3> - -<p>If you will be distributing binary versions of GCC, with modifications -to the source code, you should use the options described in this -section to make clear that your version contains modifications. - - <dl> -<dt><code>--with-pkgversion=</code><var>version</var><dd>Specify a string that identifies your package. You may wish -to include a build number or build date. This version string will be -included in the output of <samp><span class="command">gcc --version</span></samp>. This suffix does -not replace the default version string, only the ‘<samp><span class="samp">GCC</span></samp>’ part. - - <p>The default value is ‘<samp><span class="samp">GCC</span></samp>’. - - <br><dt><code>--with-bugurl=</code><var>url</var><dd>Specify the URL that users should visit if they wish to report a bug. -You are of course welcome to forward bugs reported to you to the FSF, -if you determine that they are not bugs in your modifications. - - <p>The default value refers to the FSF's GCC bug tracker. - - </dl> - -<h3 class="heading"><a name="TOC1"></a>Target specification</h3> - - <ul> -<li>GCC has code to correctly determine the correct value for <var>target</var> -for nearly all native systems. Therefore, we highly recommend you do -not provide a configure target when configuring a native compiler. - - <li><var>target</var> must be specified as <samp><span class="option">--target=</span><var>target</var></samp> -when configuring a cross compiler; examples of valid targets would be -m68k-elf, sh-elf, etc. - - <li>Specifying just <var>target</var> instead of <samp><span class="option">--target=</span><var>target</var></samp> -implies that the host defaults to <var>target</var>. -</ul> - -<h3 class="heading"><a name="TOC2"></a>Options specification</h3> - -<p>Use <var>options</var> to override several configure time options for -GCC. A list of supported <var>options</var> follows; ‘<samp><span class="samp">configure ---help</span></samp>’ may list other options, but those not listed below may not -work and should not normally be used. - - <p>Note that each <samp><span class="option">--enable</span></samp> option has a corresponding -<samp><span class="option">--disable</span></samp> option and that each <samp><span class="option">--with</span></samp> option has a -corresponding <samp><span class="option">--without</span></samp> option. - - <dl> -<dt><code>--prefix=</code><var>dirname</var><dd>Specify the toplevel installation -directory. This is the recommended way to install the tools into a directory -other than the default. The toplevel installation directory defaults to -<samp><span class="file">/usr/local</span></samp>. - - <p>We <strong>highly</strong> recommend against <var>dirname</var> being the same or a -subdirectory of <var>objdir</var> or vice versa. If specifying a directory -beneath a user's home directory tree, some shells will not expand -<var>dirname</var> correctly if it contains the ‘<samp><span class="samp">~</span></samp>’ metacharacter; use -<samp><span class="env">$HOME</span></samp> instead. - - <p>The following standard <samp><span class="command">autoconf</span></samp> options are supported. Normally you -should not need to use these options. - <dl> -<dt><code>--exec-prefix=</code><var>dirname</var><dd>Specify the toplevel installation directory for architecture-dependent -files. The default is <samp><var>prefix</var></samp>. - - <br><dt><code>--bindir=</code><var>dirname</var><dd>Specify the installation directory for the executables called by users -(such as <samp><span class="command">gcc</span></samp> and <samp><span class="command">g++</span></samp>). The default is -<samp><var>exec-prefix</var><span class="file">/bin</span></samp>. - - <br><dt><code>--libdir=</code><var>dirname</var><dd>Specify the installation directory for object code libraries and -internal data files of GCC. The default is <samp><var>exec-prefix</var><span class="file">/lib</span></samp>. - - <br><dt><code>--libexecdir=</code><var>dirname</var><dd>Specify the installation directory for internal executables of GCC. -The default is <samp><var>exec-prefix</var><span class="file">/libexec</span></samp>. - - <br><dt><code>--with-slibdir=</code><var>dirname</var><dd>Specify the installation directory for the shared libgcc library. The -default is <samp><var>libdir</var></samp>. - - <br><dt><code>--datarootdir=</code><var>dirname</var><dd>Specify the root of the directory tree for read-only architecture-independent -data files referenced by GCC. The default is <samp><var>prefix</var><span class="file">/share</span></samp>. - - <br><dt><code>--infodir=</code><var>dirname</var><dd>Specify the installation directory for documentation in info format. -The default is <samp><var>datarootdir</var><span class="file">/info</span></samp>. - - <br><dt><code>--datadir=</code><var>dirname</var><dd>Specify the installation directory for some architecture-independent -data files referenced by GCC. The default is <samp><var>datarootdir</var></samp>. - - <br><dt><code>--docdir=</code><var>dirname</var><dd>Specify the installation directory for documentation files (other -than Info) for GCC. The default is <samp><var>datarootdir</var><span class="file">/doc</span></samp>. - - <br><dt><code>--htmldir=</code><var>dirname</var><dd>Specify the installation directory for HTML documentation files. -The default is <samp><var>docdir</var></samp>. - - <br><dt><code>--pdfdir=</code><var>dirname</var><dd>Specify the installation directory for PDF documentation files. -The default is <samp><var>docdir</var></samp>. - - <br><dt><code>--mandir=</code><var>dirname</var><dd>Specify the installation directory for manual pages. The default is -<samp><var>datarootdir</var><span class="file">/man</span></samp>. (Note that the manual pages are only extracts -from the full GCC manuals, which are provided in Texinfo format. The manpages -are derived by an automatic conversion process from parts of the full -manual.) - - <br><dt><code>--with-gxx-include-dir=</code><var>dirname</var><dd>Specify -the installation directory for G++ header files. The default depends -on other configuration options, and differs between cross and native -configurations. - - <br><dt><code>--with-specs=</code><var>specs</var><dd>Specify additional command line driver SPECS. -This can be useful if you need to turn on a non-standard feature by -default without modifying the compiler's source code, for instance -<samp><span class="option">--with-specs=%{!fcommon:%{!fno-common:-fno-common}}</span></samp>. -See “Spec Files” in the main manual - - </dl> - - <br><dt><code>--program-prefix=</code><var>prefix</var><dd>GCC supports some transformations of the names of its programs when -installing them. This option prepends <var>prefix</var> to the names of -programs to install in <var>bindir</var> (see above). For example, specifying -<samp><span class="option">--program-prefix=foo-</span></samp> would result in ‘<samp><span class="samp">gcc</span></samp>’ -being installed as <samp><span class="file">/usr/local/bin/foo-gcc</span></samp>. - - <br><dt><code>--program-suffix=</code><var>suffix</var><dd>Appends <var>suffix</var> to the names of programs to install in <var>bindir</var> -(see above). For example, specifying <samp><span class="option">--program-suffix=-3.1</span></samp> -would result in ‘<samp><span class="samp">gcc</span></samp>’ being installed as -<samp><span class="file">/usr/local/bin/gcc-3.1</span></samp>. - - <br><dt><code>--program-transform-name=</code><var>pattern</var><dd>Applies the ‘<samp><span class="samp">sed</span></samp>’ script <var>pattern</var> to be applied to the names -of programs to install in <var>bindir</var> (see above). <var>pattern</var> has to -consist of one or more basic ‘<samp><span class="samp">sed</span></samp>’ editing commands, separated by -semicolons. For example, if you want the ‘<samp><span class="samp">gcc</span></samp>’ program name to be -transformed to the installed program <samp><span class="file">/usr/local/bin/myowngcc</span></samp> and -the ‘<samp><span class="samp">g++</span></samp>’ program name to be transformed to -<samp><span class="file">/usr/local/bin/gspecial++</span></samp> without changing other program names, -you could use the pattern -<samp><span class="option">--program-transform-name='s/^gcc$/myowngcc/; s/^g++$/gspecial++/'</span></samp> -to achieve this effect. - - <p>All three options can be combined and used together, resulting in more -complex conversion patterns. As a basic rule, <var>prefix</var> (and -<var>suffix</var>) are prepended (appended) before further transformations -can happen with a special transformation script <var>pattern</var>. - - <p>As currently implemented, this option only takes effect for native -builds; cross compiler binaries' names are not transformed even when a -transformation is explicitly asked for by one of these options. - - <p>For native builds, some of the installed programs are also installed -with the target alias in front of their name, as in -‘<samp><span class="samp">i686-pc-linux-gnu-gcc</span></samp>’. All of the above transformations happen -before the target alias is prepended to the name—so, specifying -<samp><span class="option">--program-prefix=foo-</span></samp> and <samp><span class="option">program-suffix=-3.1</span></samp>, the -resulting binary would be installed as -<samp><span class="file">/usr/local/bin/i686-pc-linux-gnu-foo-gcc-3.1</span></samp>. - - <p>As a last shortcoming, none of the installed Ada programs are -transformed yet, which will be fixed in some time. - - <br><dt><code>--with-local-prefix=</code><var>dirname</var><dd>Specify the -installation directory for local include files. The default is -<samp><span class="file">/usr/local</span></samp>. Specify this option if you want the compiler to -search directory <samp><var>dirname</var><span class="file">/include</span></samp> for locally installed -header files <em>instead</em> of <samp><span class="file">/usr/local/include</span></samp>. - - <p>You should specify <samp><span class="option">--with-local-prefix</span></samp> <strong>only</strong> if your -site has a different convention (not <samp><span class="file">/usr/local</span></samp>) for where to put -site-specific files. - - <p>The default value for <samp><span class="option">--with-local-prefix</span></samp> is <samp><span class="file">/usr/local</span></samp> -regardless of the value of <samp><span class="option">--prefix</span></samp>. Specifying -<samp><span class="option">--prefix</span></samp> has no effect on which directory GCC searches for -local header files. This may seem counterintuitive, but actually it is -logical. - - <p>The purpose of <samp><span class="option">--prefix</span></samp> is to specify where to <em>install -GCC</em>. The local header files in <samp><span class="file">/usr/local/include</span></samp>—if you put -any in that directory—are not part of GCC. They are part of other -programs—perhaps many others. (GCC installs its own header files in -another directory which is based on the <samp><span class="option">--prefix</span></samp> value.) - - <p>Both the local-prefix include directory and the GCC-prefix include -directory are part of GCC's “system include” directories. Although these -two directories are not fixed, they need to be searched in the proper -order for the correct processing of the include_next directive. The -local-prefix include directory is searched before the GCC-prefix -include directory. Another characteristic of system include directories -is that pedantic warnings are turned off for headers in these directories. - - <p>Some autoconf macros add <samp><span class="option">-I </span><var>directory</var></samp> options to the -compiler command line, to ensure that directories containing installed -packages' headers are searched. When <var>directory</var> is one of GCC's -system include directories, GCC will ignore the option so that system -directories continue to be processed in the correct order. This -may result in a search order different from what was specified but the -directory will still be searched. - - <p>GCC automatically searches for ordinary libraries using -<samp><span class="env">GCC_EXEC_PREFIX</span></samp>. Thus, when the same installation prefix is -used for both GCC and packages, GCC will automatically search for -both headers and libraries. This provides a configuration that is -easy to use. GCC behaves in a manner similar to that when it is -installed as a system compiler in <samp><span class="file">/usr</span></samp>. - - <p>Sites that need to install multiple versions of GCC may not want to -use the above simple configuration. It is possible to use the -<samp><span class="option">--program-prefix</span></samp>, <samp><span class="option">--program-suffix</span></samp> and -<samp><span class="option">--program-transform-name</span></samp> options to install multiple versions -into a single directory, but it may be simpler to use different prefixes -and the <samp><span class="option">--with-local-prefix</span></samp> option to specify the location of the -site-specific files for each version. It will then be necessary for -users to specify explicitly the location of local site libraries -(e.g., with <samp><span class="env">LIBRARY_PATH</span></samp>). - - <p>The same value can be used for both <samp><span class="option">--with-local-prefix</span></samp> and -<samp><span class="option">--prefix</span></samp> provided it is not <samp><span class="file">/usr</span></samp>. This can be used -to avoid the default search of <samp><span class="file">/usr/local/include</span></samp>. - - <p><strong>Do not</strong> specify <samp><span class="file">/usr</span></samp> as the <samp><span class="option">--with-local-prefix</span></samp>! -The directory you use for <samp><span class="option">--with-local-prefix</span></samp> <strong>must not</strong> -contain any of the system's standard header files. If it did contain -them, certain programs would be miscompiled (including GNU Emacs, on -certain targets), because this would override and nullify the header -file corrections made by the <samp><span class="command">fixincludes</span></samp> script. - - <p>Indications are that people who use this option use it based on mistaken -ideas of what it is for. People use it as if it specified where to -install part of GCC. Perhaps they make this assumption because -installing GCC creates the directory. - - <br><dt><code>--with-native-system-header-dir=</code><var>dirname</var><dd>Specifies that <var>dirname</var> is the directory that contains native system -header files, rather than <samp><span class="file">/usr/include</span></samp>. This option is most useful -if you are creating a compiler that should be isolated from the system -as much as possible. It is most commonly used with the -<samp><span class="option">--with-sysroot</span></samp> option and will cause GCC to search -<var>dirname</var> inside the system root specified by that option. - - <br><dt><code>--enable-shared[=</code><var>package</var><code>[,...]]</code><dd>Build shared versions of libraries, if shared libraries are supported on -the target platform. Unlike GCC 2.95.x and earlier, shared libraries -are enabled by default on all platforms that support shared libraries. - - <p>If a list of packages is given as an argument, build shared libraries -only for the listed packages. For other packages, only static libraries -will be built. Package names currently recognized in the GCC tree are -‘<samp><span class="samp">libgcc</span></samp>’ (also known as ‘<samp><span class="samp">gcc</span></samp>’), ‘<samp><span class="samp">libstdc++</span></samp>’ (not -‘<samp><span class="samp">libstdc++-v3</span></samp>’), ‘<samp><span class="samp">libffi</span></samp>’, ‘<samp><span class="samp">zlib</span></samp>’, ‘<samp><span class="samp">boehm-gc</span></samp>’, -‘<samp><span class="samp">ada</span></samp>’, ‘<samp><span class="samp">libada</span></samp>’, ‘<samp><span class="samp">libjava</span></samp>’, ‘<samp><span class="samp">libgo</span></samp>’, and ‘<samp><span class="samp">libobjc</span></samp>’. -Note ‘<samp><span class="samp">libiberty</span></samp>’ does not support shared libraries at all. - - <p>Use <samp><span class="option">--disable-shared</span></samp> to build only static libraries. Note that -<samp><span class="option">--disable-shared</span></samp> does not accept a list of package names as -argument, only <samp><span class="option">--enable-shared</span></samp> does. - - <br><dt><code><a name="with_002dgnu_002das"></a>--with-gnu-as</code><dd>Specify that the compiler should assume that the -assembler it finds is the GNU assembler. However, this does not modify -the rules to find an assembler and will result in confusion if the -assembler found is not actually the GNU assembler. (Confusion may also -result if the compiler finds the GNU assembler but has not been -configured with <samp><span class="option">--with-gnu-as</span></samp>.) If you have more than one -assembler installed on your system, you may want to use this option in -connection with <samp><span class="option">--with-as=</span><var>pathname</var></samp> or -<samp><span class="option">--with-build-time-tools=</span><var>pathname</var></samp>. - - <p>The following systems are the only ones where it makes a difference -whether you use the GNU assembler. On any other system, -<samp><span class="option">--with-gnu-as</span></samp> has no effect. - - <ul> -<li>‘<samp><span class="samp">hppa1.0-</span><var>any</var><span class="samp">-</span><var>any</var></samp>’ -<li>‘<samp><span class="samp">hppa1.1-</span><var>any</var><span class="samp">-</span><var>any</var></samp>’ -<li>‘<samp><span class="samp">sparc-sun-solaris2.</span><var>any</var></samp>’ -<li>‘<samp><span class="samp">sparc64-</span><var>any</var><span class="samp">-solaris2.</span><var>any</var></samp>’ -</ul> - - <br><dt><code><a name="with_002das"></a>--with-as=</code><var>pathname</var><dd>Specify that the compiler should use the assembler pointed to by -<var>pathname</var>, rather than the one found by the standard rules to find -an assembler, which are: - <ul> -<li>Unless GCC is being built with a cross compiler, check the -<samp><var>libexec</var><span class="file">/gcc/</span><var>target</var><span class="file">/</span><var>version</var></samp> directory. -<var>libexec</var> defaults to <samp><var>exec-prefix</var><span class="file">/libexec</span></samp>; -<var>exec-prefix</var> defaults to <var>prefix</var>, which -defaults to <samp><span class="file">/usr/local</span></samp> unless overridden by the -<samp><span class="option">--prefix=</span><var>pathname</var></samp> switch described above. <var>target</var> -is the target system triple, such as ‘<samp><span class="samp">sparc-sun-solaris2.7</span></samp>’, and -<var>version</var> denotes the GCC version, such as 3.0. - - <li>If the target system is the same that you are building on, check -operating system specific directories (e.g. <samp><span class="file">/usr/ccs/bin</span></samp> on -Sun Solaris 2). - - <li>Check in the <samp><span class="env">PATH</span></samp> for a tool whose name is prefixed by the -target system triple. - - <li>Check in the <samp><span class="env">PATH</span></samp> for a tool whose name is not prefixed by the -target system triple, if the host and target system triple are -the same (in other words, we use a host tool if it can be used for -the target as well). -</ul> - - <p>You may want to use <samp><span class="option">--with-as</span></samp> if no assembler -is installed in the directories listed above, or if you have multiple -assemblers installed and want to choose one that is not found by the -above rules. - - <br><dt><code><a name="with_002dgnu_002dld"></a>--with-gnu-ld</code><dd>Same as <a href="#with-gnu-as"><samp><span class="option">--with-gnu-as</span></samp></a> -but for the linker. - - <br><dt><code>--with-ld=</code><var>pathname</var><dd>Same as <a href="#with-as"><samp><span class="option">--with-as</span></samp></a> -but for the linker. - - <br><dt><code>--with-stabs</code><dd>Specify that stabs debugging -information should be used instead of whatever format the host normally -uses. Normally GCC uses the same debug format as the host system. - - <p>On MIPS based systems and on Alphas, you must specify whether you want -GCC to create the normal ECOFF debugging format, or to use BSD-style -stabs passed through the ECOFF symbol table. The normal ECOFF debug -format cannot fully handle languages other than C. BSD stabs format can -handle other languages, but it only works with the GNU debugger GDB. - - <p>Normally, GCC uses the ECOFF debugging format by default; if you -prefer BSD stabs, specify <samp><span class="option">--with-stabs</span></samp> when you configure GCC. - - <p>No matter which default you choose when you configure GCC, the user -can use the <samp><span class="option">-gcoff</span></samp> and <samp><span class="option">-gstabs+</span></samp> options to specify explicitly -the debug format for a particular compilation. - - <p><samp><span class="option">--with-stabs</span></samp> is meaningful on the ISC system on the 386, also, if -<samp><span class="option">--with-gas</span></samp> is used. It selects use of stabs debugging -information embedded in COFF output. This kind of debugging information -supports C++ well; ordinary COFF debugging information does not. - - <p><samp><span class="option">--with-stabs</span></samp> is also meaningful on 386 systems running SVR4. It -selects use of stabs debugging information embedded in ELF output. The -C++ compiler currently (2.6.0) does not support the DWARF debugging -information normally used on 386 SVR4 platforms; stabs provide a -workable alternative. This requires gas and gdb, as the normal SVR4 -tools can not generate or interpret stabs. - - <br><dt><code>--with-tls=</code><var>dialect</var><dd>Specify the default TLS dialect, for systems were there is a choice. -For ARM targets, possible values for <var>dialect</var> are <code>gnu</code> or -<code>gnu2</code>, which select between the original GNU dialect and the GNU TLS -descriptor-based dialect. - - <br><dt><code>--enable-multiarch</code><dd>Specify whether to enable or disable multiarch support. The default is -to check for glibc start files in a multiarch location, and enable it -if the files are found. The auto detection is enabled for native builds, -and for cross builds configured with <samp><span class="option">--with-sysroot</span></samp>, and without -<samp><span class="option">--with-native-system-header-dir</span></samp>. -More documentation about multiarch can be found at -<a href="http://wiki.debian.org/Multiarch">http://wiki.debian.org/Multiarch</a>. - - <br><dt><code>--disable-multilib</code><dd>Specify that multiple target -libraries to support different target variants, calling -conventions, etc. should not be built. The default is to build a -predefined set of them. - - <p>Some targets provide finer-grained control over which multilibs are built -(e.g., <samp><span class="option">--disable-softfloat</span></samp>): - <dl> -<dt><code>arm-*-*</code><dd>fpu, 26bit, underscore, interwork, biendian, nofmult. - - <br><dt><code>m68*-*-*</code><dd>softfloat, m68881, m68000, m68020. - - <br><dt><code>mips*-*-*</code><dd>single-float, biendian, softfloat. - - <br><dt><code>powerpc*-*-*, rs6000*-*-*</code><dd>aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian, -sysv, aix. - - </dl> - - <br><dt><code>--with-multilib-list=</code><var>list</var><dt><code>--without-multilib-list</code><dd>Specify what multilibs to build. -Currently only implemented for sh*-*-* and x86-64-*-linux*. - - <dl> -<dt><code>sh*-*-*</code><dd><var>list</var> is a comma separated list of CPU names. These must be of the -form <code>sh*</code> or <code>m*</code> (in which case they match the compiler option -for that processor). The list should not contain any endian options - -these are handled by <samp><span class="option">--with-endian</span></samp>. - - <p>If <var>list</var> is empty, then there will be no multilibs for extra -processors. The multilib for the secondary endian remains enabled. - - <p>As a special case, if an entry in the list starts with a <code>!</code> -(exclamation point), then it is added to the list of excluded multilibs. -Entries of this sort should be compatible with ‘<samp><span class="samp">MULTILIB_EXCLUDES</span></samp>’ -(once the leading <code>!</code> has been stripped). - - <p>If <samp><span class="option">--with-multilib-list</span></samp> is not given, then a default set of -multilibs is selected based on the value of <samp><span class="option">--target</span></samp>. This is -usually the complete set of libraries, but some targets imply a more -specialized subset. - - <p>Example 1: to configure a compiler for SH4A only, but supporting both -endians, with little endian being the default: - <pre class="smallexample"> --with-cpu=sh4a --with-endian=little,big --with-multilib-list= -</pre> - <p>Example 2: to configure a compiler for both SH4A and SH4AL-DSP, but with -only little endian SH4AL: - <pre class="smallexample"> --with-cpu=sh4a --with-endian=little,big \ - --with-multilib-list=sh4al,!mb/m4al -</pre> - <br><dt><code>x86-64-*-linux*</code><dd><var>list</var> is a comma separated list of <code>m32</code>, <code>m64</code> and -<code>mx32</code> to enable 32-bit, 64-bit and x32 run-time libraries, -respectively. If <var>list</var> is empty, then there will be no multilibs -and only the default run-time library will be enabled. - - <p>If <samp><span class="option">--with-multilib-list</span></samp> is not given, then only 32-bit and -64-bit run-time libraries will be enabled. -</dl> - - <br><dt><code>--with-endian=</code><var>endians</var><dd>Specify what endians to use. -Currently only implemented for sh*-*-*. - - <p><var>endians</var> may be one of the following: - <dl> -<dt><code>big</code><dd>Use big endian exclusively. -<br><dt><code>little</code><dd>Use little endian exclusively. -<br><dt><code>big,little</code><dd>Use big endian by default. Provide a multilib for little endian. -<br><dt><code>little,big</code><dd>Use little endian by default. Provide a multilib for big endian. -</dl> - - <br><dt><code>--enable-threads</code><dd>Specify that the target -supports threads. This affects the Objective-C compiler and runtime -library, and exception handling for other languages like C++ and Java. -On some systems, this is the default. - - <p>In general, the best (and, in many cases, the only known) threading -model available will be configured for use. Beware that on some -systems, GCC has not been taught what threading models are generally -available for the system. In this case, <samp><span class="option">--enable-threads</span></samp> is an -alias for <samp><span class="option">--enable-threads=single</span></samp>. - - <br><dt><code>--disable-threads</code><dd>Specify that threading support should be disabled for the system. -This is an alias for <samp><span class="option">--enable-threads=single</span></samp>. - - <br><dt><code>--enable-threads=</code><var>lib</var><dd>Specify that -<var>lib</var> is the thread support library. This affects the Objective-C -compiler and runtime library, and exception handling for other languages -like C++ and Java. The possibilities for <var>lib</var> are: - - <dl> -<dt><code>aix</code><dd>AIX thread support. -<br><dt><code>dce</code><dd>DCE thread support. -<br><dt><code>lynx</code><dd>LynxOS thread support. -<br><dt><code>mipssde</code><dd>MIPS SDE thread support. -<br><dt><code>no</code><dd>This is an alias for ‘<samp><span class="samp">single</span></samp>’. -<br><dt><code>posix</code><dd>Generic POSIX/Unix98 thread support. -<br><dt><code>rtems</code><dd>RTEMS thread support. -<br><dt><code>single</code><dd>Disable thread support, should work for all platforms. -<br><dt><code>tpf</code><dd>TPF thread support. -<br><dt><code>vxworks</code><dd>VxWorks thread support. -<br><dt><code>win32</code><dd>Microsoft Win32 API thread support. -</dl> - - <br><dt><code>--enable-tls</code><dd>Specify that the target supports TLS (Thread Local Storage). Usually -configure can correctly determine if TLS is supported. In cases where -it guesses incorrectly, TLS can be explicitly enabled or disabled with -<samp><span class="option">--enable-tls</span></samp> or <samp><span class="option">--disable-tls</span></samp>. This can happen if -the assembler supports TLS but the C library does not, or if the -assumptions made by the configure test are incorrect. - - <br><dt><code>--disable-tls</code><dd>Specify that the target does not support TLS. -This is an alias for <samp><span class="option">--enable-tls=no</span></samp>. - - <br><dt><code>--with-cpu=</code><var>cpu</var><dt><code>--with-cpu-32=</code><var>cpu</var><dt><code>--with-cpu-64=</code><var>cpu</var><dd>Specify which cpu variant the compiler should generate code for by default. -<var>cpu</var> will be used as the default value of the <samp><span class="option">-mcpu=</span></samp> switch. -This option is only supported on some targets, including ARM, i386, M68k, -PowerPC, and SPARC. The <samp><span class="option">--with-cpu-32</span></samp> and -<samp><span class="option">--with-cpu-64</span></samp> options specify separate default CPUs for -32-bit and 64-bit modes; these options are only supported for i386, -x86-64 and PowerPC. - - <br><dt><code>--with-schedule=</code><var>cpu</var><dt><code>--with-arch=</code><var>cpu</var><dt><code>--with-arch-32=</code><var>cpu</var><dt><code>--with-arch-64=</code><var>cpu</var><dt><code>--with-tune=</code><var>cpu</var><dt><code>--with-tune-32=</code><var>cpu</var><dt><code>--with-tune-64=</code><var>cpu</var><dt><code>--with-abi=</code><var>abi</var><dt><code>--with-fpu=</code><var>type</var><dt><code>--with-float=</code><var>type</var><dd>These configure options provide default values for the <samp><span class="option">-mschedule=</span></samp>, -<samp><span class="option">-march=</span></samp>, <samp><span class="option">-mtune=</span></samp>, <samp><span class="option">-mabi=</span></samp>, and <samp><span class="option">-mfpu=</span></samp> -options and for <samp><span class="option">-mhard-float</span></samp> or <samp><span class="option">-msoft-float</span></samp>. As with -<samp><span class="option">--with-cpu</span></samp>, which switches will be accepted and acceptable values -of the arguments depend on the target. - - <br><dt><code>--with-mode=</code><var>mode</var><dd>Specify if the compiler should default to <samp><span class="option">-marm</span></samp> or <samp><span class="option">-mthumb</span></samp>. -This option is only supported on ARM targets. - - <br><dt><code>--with-stack-offset=</code><var>num</var><dd>This option sets the default for the -mstack-offset=<var>num</var> option, -and will thus generally also control the setting of this option for -libraries. This option is only supported on Epiphany targets. - - <br><dt><code>--with-fpmath=</code><var>isa</var><dd>This options sets <samp><span class="option">-mfpmath=sse</span></samp> by default and specifies the default -ISA for floating-point arithmetics. You can select either ‘<samp><span class="samp">sse</span></samp>’ which -enables <samp><span class="option">-msse2</span></samp> or ‘<samp><span class="samp">avx</span></samp>’ which enables <samp><span class="option">-mavx</span></samp> by default. -This option is only supported on i386 and x86-64 targets. - - <br><dt><code>--with-divide=</code><var>type</var><dd>Specify how the compiler should generate code for checking for -division by zero. This option is only supported on the MIPS target. -The possibilities for <var>type</var> are: - <dl> -<dt><code>traps</code><dd>Division by zero checks use conditional traps (this is the default on -systems that support conditional traps). -<br><dt><code>breaks</code><dd>Division by zero checks use the break instruction. -</dl> - - <!-- If you make -with-llsc the default for additional targets, --> - <!-- update the -with-llsc description in the MIPS section below. --> - <br><dt><code>--with-llsc</code><dd>On MIPS targets, make <samp><span class="option">-mllsc</span></samp> the default when no -<samp><span class="option">-mno-llsc</span></samp> option is passed. This is the default for -Linux-based targets, as the kernel will emulate them if the ISA does -not provide them. - - <br><dt><code>--without-llsc</code><dd>On MIPS targets, make <samp><span class="option">-mno-llsc</span></samp> the default when no -<samp><span class="option">-mllsc</span></samp> option is passed. - - <br><dt><code>--with-synci</code><dd>On MIPS targets, make <samp><span class="option">-msynci</span></samp> the default when no -<samp><span class="option">-mno-synci</span></samp> option is passed. - - <br><dt><code>--without-synci</code><dd>On MIPS targets, make <samp><span class="option">-mno-synci</span></samp> the default when no -<samp><span class="option">-msynci</span></samp> option is passed. This is the default. - - <br><dt><code>--with-mips-plt</code><dd>On MIPS targets, make use of copy relocations and PLTs. -These features are extensions to the traditional -SVR4-based MIPS ABIs and require support from GNU binutils -and the runtime C library. - - <br><dt><code>--enable-__cxa_atexit</code><dd>Define if you want to use __cxa_atexit, rather than atexit, to -register C++ destructors for local statics and global objects. -This is essential for fully standards-compliant handling of -destructors, but requires __cxa_atexit in libc. This option is currently -only available on systems with GNU libc. When enabled, this will cause -<samp><span class="option">-fuse-cxa-atexit</span></samp> to be passed by default. - - <br><dt><code>--enable-gnu-indirect-function</code><dd>Define if you want to enable the <code>ifunc</code> attribute. This option is -currently only available on systems with GNU libc on certain targets. - - <br><dt><code>--enable-target-optspace</code><dd>Specify that target -libraries should be optimized for code space instead of code speed. -This is the default for the m32r platform. - - <br><dt><code>--with-cpp-install-dir=</code><var>dirname</var><dd>Specify that the user visible <samp><span class="command">cpp</span></samp> program should be installed -in <samp><var>prefix</var><span class="file">/</span><var>dirname</var><span class="file">/cpp</span></samp>, in addition to <var>bindir</var>. - - <br><dt><code>--enable-comdat</code><dd>Enable COMDAT group support. This is primarily used to override the -automatically detected value. - - <br><dt><code>--enable-initfini-array</code><dd>Force the use of sections <code>.init_array</code> and <code>.fini_array</code> -(instead of <code>.init</code> and <code>.fini</code>) for constructors and -destructors. Option <samp><span class="option">--disable-initfini-array</span></samp> has the -opposite effect. If neither option is specified, the configure script -will try to guess whether the <code>.init_array</code> and -<code>.fini_array</code> sections are supported and, if they are, use them. - - <br><dt><code>--enable-maintainer-mode</code><dd>The build rules that regenerate the Autoconf and Automake output files as -well as the GCC master message catalog <samp><span class="file">gcc.pot</span></samp> are normally -disabled. This is because it can only be rebuilt if the complete source -tree is present. If you have changed the sources and want to rebuild the -catalog, configuring with <samp><span class="option">--enable-maintainer-mode</span></samp> will enable -this. Note that you need a recent version of the <code>gettext</code> tools -to do so. - - <br><dt><code>--disable-bootstrap</code><dd>For a native build, the default configuration is to perform -a 3-stage bootstrap of the compiler when ‘<samp><span class="samp">make</span></samp>’ is invoked, -testing that GCC can compile itself correctly. If you want to disable -this process, you can configure with <samp><span class="option">--disable-bootstrap</span></samp>. - - <br><dt><code>--enable-bootstrap</code><dd>In special cases, you may want to perform a 3-stage build -even if the target and host triplets are different. -This is possible when the host can run code compiled for -the target (e.g. host is i686-linux, target is i486-linux). -Starting from GCC 4.2, to do this you have to configure explicitly -with <samp><span class="option">--enable-bootstrap</span></samp>. - - <br><dt><code>--enable-generated-files-in-srcdir</code><dd>Neither the .c and .h files that are generated from Bison and flex nor the -info manuals and man pages that are built from the .texi files are present -in the SVN development tree. When building GCC from that development tree, -or from one of our snapshots, those generated files are placed in your -build directory, which allows for the source to be in a readonly -directory. - - <p>If you configure with <samp><span class="option">--enable-generated-files-in-srcdir</span></samp> then those -generated files will go into the source directory. This is mainly intended -for generating release or prerelease tarballs of the GCC sources, since it -is not a requirement that the users of source releases to have flex, Bison, -or makeinfo. - - <br><dt><code>--enable-version-specific-runtime-libs</code><dd>Specify -that runtime libraries should be installed in the compiler specific -subdirectory (<samp><var>libdir</var><span class="file">/gcc</span></samp>) rather than the usual places. In -addition, ‘<samp><span class="samp">libstdc++</span></samp>’'s include files will be installed into -<samp><var>libdir</var></samp> unless you overruled it by using -<samp><span class="option">--with-gxx-include-dir=</span><var>dirname</var></samp>. Using this option is -particularly useful if you intend to use several versions of GCC in -parallel. This is currently supported by ‘<samp><span class="samp">libgfortran</span></samp>’, -‘<samp><span class="samp">libjava</span></samp>’, ‘<samp><span class="samp">libmudflap</span></samp>’, ‘<samp><span class="samp">libstdc++</span></samp>’, and ‘<samp><span class="samp">libobjc</span></samp>’. - - <br><dt><code>--enable-languages=</code><var>lang1</var><code>,</code><var>lang2</var><code>,...</code><dd>Specify that only a particular subset of compilers and -their runtime libraries should be built. For a list of valid values for -<var>langN</var> you can issue the following command in the -<samp><span class="file">gcc</span></samp> directory of your GCC source tree:<br> - <pre class="smallexample"> grep language= */config-lang.in -</pre> - <p>Currently, you can use any of the following: -<code>all</code>, <code>ada</code>, <code>c</code>, <code>c++</code>, <code>fortran</code>, -<code>go</code>, <code>java</code>, <code>objc</code>, <code>obj-c++</code>. -Building the Ada compiler has special requirements, see below. -If you do not pass this flag, or specify the option <code>all</code>, then all -default languages available in the <samp><span class="file">gcc</span></samp> sub-tree will be configured. -Ada, Go and Objective-C++ are not default languages; the rest are. - - <br><dt><code>--enable-stage1-languages=</code><var>lang1</var><code>,</code><var>lang2</var><code>,...</code><dd>Specify that a particular subset of compilers and their runtime -libraries should be built with the system C compiler during stage 1 of -the bootstrap process, rather than only in later stages with the -bootstrapped C compiler. The list of valid values is the same as for -<samp><span class="option">--enable-languages</span></samp>, and the option <code>all</code> will select all -of the languages enabled by <samp><span class="option">--enable-languages</span></samp>. This option is -primarily useful for GCC development; for instance, when a development -version of the compiler cannot bootstrap due to compiler bugs, or when -one is debugging front ends other than the C front end. When this -option is used, one can then build the target libraries for the -specified languages with the stage-1 compiler by using <samp><span class="command">make -stage1-bubble all-target</span></samp>, or run the testsuite on the stage-1 compiler -for the specified languages using <samp><span class="command">make stage1-start check-gcc</span></samp>. - - <br><dt><code>--disable-libada</code><dd>Specify that the run-time libraries and tools used by GNAT should not -be built. This can be useful for debugging, or for compatibility with -previous Ada build procedures, when it was required to explicitly -do a ‘<samp><span class="samp">make -C gcc gnatlib_and_tools</span></samp>’. - - <br><dt><code>--disable-libssp</code><dd>Specify that the run-time libraries for stack smashing protection -should not be built. - - <br><dt><code>--disable-libquadmath</code><dd>Specify that the GCC quad-precision math library should not be built. -On some systems, the library is required to be linkable when building -the Fortran front end, unless <samp><span class="option">--disable-libquadmath-support</span></samp> -is used. - - <br><dt><code>--disable-libquadmath-support</code><dd>Specify that the Fortran front end and <code>libgfortran</code> do not add -support for <code>libquadmath</code> on systems supporting it. - - <br><dt><code>--disable-libgomp</code><dd>Specify that the run-time libraries used by GOMP should not be built. - - <br><dt><code>--with-dwarf2</code><dd>Specify that the compiler should -use DWARF 2 debugging information as the default. - - <br><dt><code>--enable-targets=all</code><dt><code>--enable-targets=</code><var>target_list</var><dd>Some GCC targets, e.g. powerpc64-linux, build bi-arch compilers. -These are compilers that are able to generate either 64-bit or 32-bit -code. Typically, the corresponding 32-bit target, e.g. -powerpc-linux for powerpc64-linux, only generates 32-bit code. This -option enables the 32-bit target to be a bi-arch compiler, which is -useful when you want a bi-arch compiler that defaults to 32-bit, and -you are building a bi-arch or multi-arch binutils in a combined tree. -On mips-linux, this will build a tri-arch compiler (ABI o32/n32/64), -defaulted to o32. -Currently, this option only affects sparc-linux, powerpc-linux, x86-linux, -mips-linux and s390-linux. - - <br><dt><code>--enable-secureplt</code><dd>This option enables <samp><span class="option">-msecure-plt</span></samp> by default for powerpc-linux. -See “RS/6000 and PowerPC Options” in the main manual - - <br><dt><code>--enable-cld</code><dd>This option enables <samp><span class="option">-mcld</span></samp> by default for 32-bit x86 targets. -See “i386 and x86-64 Options” in the main manual - - <br><dt><code>--enable-win32-registry</code><dt><code>--enable-win32-registry=</code><var>key</var><dt><code>--disable-win32-registry</code><dd>The <samp><span class="option">--enable-win32-registry</span></samp> option enables Microsoft Windows-hosted GCC -to look up installations paths in the registry using the following key: - - <pre class="smallexample"> <code>HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\</code><var>key</var> -</pre> - <p><var>key</var> defaults to GCC version number, and can be overridden by the -<samp><span class="option">--enable-win32-registry=</span><var>key</var></samp> option. Vendors and distributors -who use custom installers are encouraged to provide a different key, -perhaps one comprised of vendor name and GCC version number, to -avoid conflict with existing installations. This feature is enabled -by default, and can be disabled by <samp><span class="option">--disable-win32-registry</span></samp> -option. This option has no effect on the other hosts. - - <br><dt><code>--nfp</code><dd>Specify that the machine does not have a floating point unit. This -option only applies to ‘<samp><span class="samp">m68k-sun-sunos</span><var>n</var></samp>’. On any other -system, <samp><span class="option">--nfp</span></samp> has no effect. - - <br><dt><code>--enable-werror</code><dt><code>--disable-werror</code><dt><code>--enable-werror=yes</code><dt><code>--enable-werror=no</code><dd>When you specify this option, it controls whether certain files in the -compiler are built with <samp><span class="option">-Werror</span></samp> in bootstrap stage2 and later. -If you don't specify it, <samp><span class="option">-Werror</span></samp> is turned on for the main -development trunk. However it defaults to off for release branches and -final releases. The specific files which get <samp><span class="option">-Werror</span></samp> are -controlled by the Makefiles. - - <br><dt><code>--enable-checking</code><dt><code>--enable-checking=</code><var>list</var><dd>When you specify this option, the compiler is built to perform internal -consistency checks of the requested complexity. This does not change the -generated code, but adds error checking within the compiler. This will -slow down the compiler and may only work properly if you are building -the compiler with GCC. This is ‘<samp><span class="samp">yes</span></samp>’ by default when building -from SVN or snapshots, but ‘<samp><span class="samp">release</span></samp>’ for releases. The default -for building the stage1 compiler is ‘<samp><span class="samp">yes</span></samp>’. More control -over the checks may be had by specifying <var>list</var>. The categories of -checks available are ‘<samp><span class="samp">yes</span></samp>’ (most common checks -‘<samp><span class="samp">assert,misc,tree,gc,rtlflag,runtime</span></samp>’), ‘<samp><span class="samp">no</span></samp>’ (no checks at -all), ‘<samp><span class="samp">all</span></samp>’ (all but ‘<samp><span class="samp">valgrind</span></samp>’), ‘<samp><span class="samp">release</span></samp>’ (cheapest -checks ‘<samp><span class="samp">assert,runtime</span></samp>’) or ‘<samp><span class="samp">none</span></samp>’ (same as ‘<samp><span class="samp">no</span></samp>’). -Individual checks can be enabled with these flags ‘<samp><span class="samp">assert</span></samp>’, -‘<samp><span class="samp">df</span></samp>’, ‘<samp><span class="samp">fold</span></samp>’, ‘<samp><span class="samp">gc</span></samp>’, ‘<samp><span class="samp">gcac</span></samp>’ ‘<samp><span class="samp">misc</span></samp>’, ‘<samp><span class="samp">rtl</span></samp>’, -‘<samp><span class="samp">rtlflag</span></samp>’, ‘<samp><span class="samp">runtime</span></samp>’, ‘<samp><span class="samp">tree</span></samp>’, and ‘<samp><span class="samp">valgrind</span></samp>’. - - <p>The ‘<samp><span class="samp">valgrind</span></samp>’ check requires the external <samp><span class="command">valgrind</span></samp> -simulator, available from <a href="http://valgrind.org/">http://valgrind.org/</a>. The -‘<samp><span class="samp">df</span></samp>’, ‘<samp><span class="samp">rtl</span></samp>’, ‘<samp><span class="samp">gcac</span></samp>’ and ‘<samp><span class="samp">valgrind</span></samp>’ checks are very expensive. -To disable all checking, ‘<samp><span class="samp">--disable-checking</span></samp>’ or -‘<samp><span class="samp">--enable-checking=none</span></samp>’ must be explicitly requested. Disabling -assertions will make the compiler and runtime slightly faster but -increase the risk of undetected internal errors causing wrong code to be -generated. - - <br><dt><code>--disable-stage1-checking</code><dt><code>--enable-stage1-checking</code><dt><code>--enable-stage1-checking=</code><var>list</var><dd>If no <samp><span class="option">--enable-checking</span></samp> option is specified the stage1 -compiler will be built with ‘<samp><span class="samp">yes</span></samp>’ checking enabled, otherwise -the stage1 checking flags are the same as specified by -<samp><span class="option">--enable-checking</span></samp>. To build the stage1 compiler with -different checking options use <samp><span class="option">--enable-stage1-checking</span></samp>. -The list of checking options is the same as for <samp><span class="option">--enable-checking</span></samp>. -If your system is too slow or too small to bootstrap a released compiler -with checking for stage1 enabled, you can use ‘<samp><span class="samp">--disable-stage1-checking</span></samp>’ -to disable checking for the stage1 compiler. - - <br><dt><code>--enable-coverage</code><dt><code>--enable-coverage=</code><var>level</var><dd>With this option, the compiler is built to collect self coverage -information, every time it is run. This is for internal development -purposes, and only works when the compiler is being built with gcc. The -<var>level</var> argument controls whether the compiler is built optimized or -not, values are ‘<samp><span class="samp">opt</span></samp>’ and ‘<samp><span class="samp">noopt</span></samp>’. For coverage analysis you -want to disable optimization, for performance analysis you want to -enable optimization. When coverage is enabled, the default level is -without optimization. - - <br><dt><code>--enable-gather-detailed-mem-stats</code><dd>When this option is specified more detailed information on memory -allocation is gathered. This information is printed when using -<samp><span class="option">-fmem-report</span></samp>. - - <br><dt><code>--enable-nls</code><dt><code>--disable-nls</code><dd>The <samp><span class="option">--enable-nls</span></samp> option enables Native Language Support (NLS), -which lets GCC output diagnostics in languages other than American -English. Native Language Support is enabled by default if not doing a -canadian cross build. The <samp><span class="option">--disable-nls</span></samp> option disables NLS. - - <br><dt><code>--with-included-gettext</code><dd>If NLS is enabled, the <samp><span class="option">--with-included-gettext</span></samp> option causes the build -procedure to prefer its copy of GNU <samp><span class="command">gettext</span></samp>. - - <br><dt><code>--with-catgets</code><dd>If NLS is enabled, and if the host lacks <code>gettext</code> but has the -inferior <code>catgets</code> interface, the GCC build procedure normally -ignores <code>catgets</code> and instead uses GCC's copy of the GNU -<code>gettext</code> library. The <samp><span class="option">--with-catgets</span></samp> option causes the -build procedure to use the host's <code>catgets</code> in this situation. - - <br><dt><code>--with-libiconv-prefix=</code><var>dir</var><dd>Search for libiconv header files in <samp><var>dir</var><span class="file">/include</span></samp> and -libiconv library files in <samp><var>dir</var><span class="file">/lib</span></samp>. - - <br><dt><code>--enable-obsolete</code><dd>Enable configuration for an obsoleted system. If you attempt to -configure GCC for a system (build, host, or target) which has been -obsoleted, and you do not specify this flag, configure will halt with an -error message. - - <p>All support for systems which have been obsoleted in one release of GCC -is removed entirely in the next major release, unless someone steps -forward to maintain the port. - - <br><dt><code>--enable-decimal-float</code><dt><code>--enable-decimal-float=yes</code><dt><code>--enable-decimal-float=no</code><dt><code>--enable-decimal-float=bid</code><dt><code>--enable-decimal-float=dpd</code><dt><code>--disable-decimal-float</code><dd>Enable (or disable) support for the C decimal floating point extension -that is in the IEEE 754-2008 standard. This is enabled by default only -on PowerPC, i386, and x86_64 GNU/Linux systems. Other systems may also -support it, but require the user to specifically enable it. You can -optionally control which decimal floating point format is used (either -‘<samp><span class="samp">bid</span></samp>’ or ‘<samp><span class="samp">dpd</span></samp>’). The ‘<samp><span class="samp">bid</span></samp>’ (binary integer decimal) -format is default on i386 and x86_64 systems, and the ‘<samp><span class="samp">dpd</span></samp>’ -(densely packed decimal) format is default on PowerPC systems. - - <br><dt><code>--enable-fixed-point</code><dt><code>--disable-fixed-point</code><dd>Enable (or disable) support for C fixed-point arithmetic. -This option is enabled by default for some targets (such as MIPS) which -have hardware-support for fixed-point operations. On other targets, you -may enable this option manually. - - <br><dt><code>--with-long-double-128</code><dd>Specify if <code>long double</code> type should be 128-bit by default on selected -GNU/Linux architectures. If using <code>--without-long-double-128</code>, -<code>long double</code> will be by default 64-bit, the same as <code>double</code> type. -When neither of these configure options are used, the default will be -128-bit <code>long double</code> when built against GNU C Library 2.4 and later, -64-bit <code>long double</code> otherwise. - - <br><dt><code>--with-gmp=</code><var>pathname</var><dt><code>--with-gmp-include=</code><var>pathname</var><dt><code>--with-gmp-lib=</code><var>pathname</var><dt><code>--with-mpfr=</code><var>pathname</var><dt><code>--with-mpfr-include=</code><var>pathname</var><dt><code>--with-mpfr-lib=</code><var>pathname</var><dt><code>--with-mpc=</code><var>pathname</var><dt><code>--with-mpc-include=</code><var>pathname</var><dt><code>--with-mpc-lib=</code><var>pathname</var><dd>If you want to build GCC but do not have the GMP library, the MPFR -library and/or the MPC library installed in a standard location and -do not have their sources present in the GCC source tree then you -can explicitly specify the directory where they are installed -(‘<samp><span class="samp">--with-gmp=</span><var>gmpinstalldir</var></samp>’, -‘<samp><span class="samp">--with-mpfr=</span><var>mpfrinstalldir</var></samp>’, -‘<samp><span class="samp">--with-mpc=</span><var>mpcinstalldir</var></samp>’). The -<samp><span class="option">--with-gmp=</span><var>gmpinstalldir</var></samp> option is shorthand for -<samp><span class="option">--with-gmp-lib=</span><var>gmpinstalldir</var><span class="option">/lib</span></samp> and -<samp><span class="option">--with-gmp-include=</span><var>gmpinstalldir</var><span class="option">/include</span></samp>. Likewise the -<samp><span class="option">--with-mpfr=</span><var>mpfrinstalldir</var></samp> option is shorthand for -<samp><span class="option">--with-mpfr-lib=</span><var>mpfrinstalldir</var><span class="option">/lib</span></samp> and -<samp><span class="option">--with-mpfr-include=</span><var>mpfrinstalldir</var><span class="option">/include</span></samp>, also the -<samp><span class="option">--with-mpc=</span><var>mpcinstalldir</var></samp> option is shorthand for -<samp><span class="option">--with-mpc-lib=</span><var>mpcinstalldir</var><span class="option">/lib</span></samp> and -<samp><span class="option">--with-mpc-include=</span><var>mpcinstalldir</var><span class="option">/include</span></samp>. If these -shorthand assumptions are not correct, you can use the explicit -include and lib options directly. You might also need to ensure the -shared libraries can be found by the dynamic linker when building and -using GCC, for example by setting the runtime shared library path -variable (<samp><span class="env">LD_LIBRARY_PATH</span></samp> on GNU/Linux and Solaris systems). - - <p>These flags are applicable to the host platform only. When building -a cross compiler, they will not be used to configure target libraries. - - <br><dt><code>--with-isl=</code><var>pathname</var><dt><code>--with-isl-include=</code><var>pathname</var><dt><code>--with-isl-lib=</code><var>pathname</var><dt><code>--with-cloog=</code><var>pathname</var><dt><code>--with-cloog-include=</code><var>pathname</var><dt><code>--with-cloog-lib=</code><var>pathname</var><dd>If you do not have ISL and the CLooG -libraries installed in a standard location and you want to build GCC, -you can explicitly specify the directory where they are installed -(‘<samp><span class="samp">--with-isl=</span><var>islinstalldir</var></samp>’, -‘<samp><span class="samp">--with-cloog=</span><var>clooginstalldir</var></samp>’). The -<samp><span class="option">--with-isl=</span><var>islinstalldir</var></samp> option is shorthand for -<samp><span class="option">--with-isl-lib=</span><var>islinstalldir</var><span class="option">/lib</span></samp> and -<samp><span class="option">--with-isl-include=</span><var>islinstalldir</var><span class="option">/include</span></samp>. Likewise the -<samp><span class="option">--with-cloog=</span><var>clooginstalldir</var></samp> option is shorthand for -<samp><span class="option">--with-cloog-lib=</span><var>clooginstalldir</var><span class="option">/lib</span></samp> and -<samp><span class="option">--with-cloog-include=</span><var>clooginstalldir</var><span class="option">/include</span></samp>. If these -shorthand assumptions are not correct, you can use the explicit -include and lib options directly. - - <p>These flags are applicable to the host platform only. When building -a cross compiler, they will not be used to configure target libraries. - - <br><dt><code>--with-host-libstdcxx=</code><var>linker-args</var><dd>If you are linking with a static copy of PPL, you can use this option -to specify how the linker should find the standard C++ library used -internally by PPL. Typical values of <var>linker-args</var> might be -‘<samp><span class="samp">-lstdc++</span></samp>’ or ‘<samp><span class="samp">-Wl,-Bstatic,-lstdc++,-Bdynamic -lm</span></samp>’. If you are -linking with a shared copy of PPL, you probably do not need this -option; shared library dependencies will cause the linker to search -for the standard C++ library automatically. - - <br><dt><code>--with-stage1-ldflags=</code><var>flags</var><dd>This option may be used to set linker flags to be used when linking -stage 1 of GCC. These are also used when linking GCC if configured with -<samp><span class="option">--disable-bootstrap</span></samp>. By default no special flags are used. - - <br><dt><code>--with-stage1-libs=</code><var>libs</var><dd>This option may be used to set libraries to be used when linking stage 1 -of GCC. These are also used when linking GCC if configured with -<samp><span class="option">--disable-bootstrap</span></samp>. The default is the argument to -<samp><span class="option">--with-host-libstdcxx</span></samp>, if specified. - - <br><dt><code>--with-boot-ldflags=</code><var>flags</var><dd>This option may be used to set linker flags to be used when linking -stage 2 and later when bootstrapping GCC. If neither –with-boot-libs -nor –with-host-libstdcxx is set to a value, then the default is -‘<samp><span class="samp">-static-libstdc++ -static-libgcc</span></samp>’. - - <br><dt><code>--with-boot-libs=</code><var>libs</var><dd>This option may be used to set libraries to be used when linking stage 2 -and later when bootstrapping GCC. The default is the argument to -<samp><span class="option">--with-host-libstdcxx</span></samp>, if specified. - - <br><dt><code>--with-debug-prefix-map=</code><var>map</var><dd>Convert source directory names using <samp><span class="option">-fdebug-prefix-map</span></samp> when -building runtime libraries. ‘<samp><var>map</var></samp>’ is a space-separated -list of maps of the form ‘<samp><var>old</var><span class="samp">=</span><var>new</var></samp>’. - - <br><dt><code>--enable-linker-build-id</code><dd>Tells GCC to pass <samp><span class="option">--build-id</span></samp> option to the linker for all final -links (links performed without the <samp><span class="option">-r</span></samp> or <samp><span class="option">--relocatable</span></samp> -option), if the linker supports it. If you specify -<samp><span class="option">--enable-linker-build-id</span></samp>, but your linker does not -support <samp><span class="option">--build-id</span></samp> option, a warning is issued and the -<samp><span class="option">--enable-linker-build-id</span></samp> option is ignored. The default is off. - - <br><dt><code>--with-linker-hash-style=</code><var>choice</var><dd>Tells GCC to pass <samp><span class="option">--hash-style=</span><var>choice</var></samp> option to the -linker for all final links. <var>choice</var> can be one of -‘<samp><span class="samp">sysv</span></samp>’, ‘<samp><span class="samp">gnu</span></samp>’, and ‘<samp><span class="samp">both</span></samp>’ where ‘<samp><span class="samp">sysv</span></samp>’ is the default. - - <br><dt><code>--enable-gnu-unique-object</code><dt><code>--disable-gnu-unique-object</code><dd>Tells GCC to use the gnu_unique_object relocation for C++ template -static data members and inline function local statics. Enabled by -default for a native toolchain with an assembler that accepts it and -GLIBC 2.11 or above, otherwise disabled. - - <br><dt><code>--enable-lto</code><dt><code>--disable-lto</code><dd>Enable support for link-time optimization (LTO). This is enabled by -default, and may be disabled using <samp><span class="option">--disable-lto</span></samp>. - - <br><dt><code>--with-plugin-ld=</code><var>pathname</var><dd>Enable an alternate linker to be used at link-time optimization (LTO) -link time when <samp><span class="option">-fuse-linker-plugin</span></samp> is enabled. -This linker should have plugin support such as gold starting with -version 2.20 or GNU ld starting with version 2.21. -See <samp><span class="option">-fuse-linker-plugin</span></samp> for details. - - <br><dt><code>--enable-canonical-system-headers</code><dt><code>--disable-canonical-system-headers</code><dd>Enable system header path canonicalization for <samp><span class="file">libcpp</span></samp>. This can -produce shorter header file paths in diagnostics and dependency output -files, but these changed header paths may conflict with some compilation -environments. Enabled by default, and may be disabled using -<samp><span class="option">--disable-canonical-system-headers</span></samp>. -</dl> - -<h4 class="subheading"><a name="TOC3"></a>Cross-Compiler-Specific Options</h4> - -<p>The following options only apply to building cross compilers. - - <dl> -<dt><code>--with-sysroot</code><dt><code>--with-sysroot=</code><var>dir</var><dd>Tells GCC to consider <var>dir</var> as the root of a tree that contains -(a subset of) the root filesystem of the target operating system. -Target system headers, libraries and run-time object files will be -searched for in there. More specifically, this acts as if -<samp><span class="option">--sysroot=</span><var>dir</var></samp> was added to the default options of the built -compiler. The specified directory is not copied into the -install tree, unlike the options <samp><span class="option">--with-headers</span></samp> and -<samp><span class="option">--with-libs</span></samp> that this option obsoletes. The default value, -in case <samp><span class="option">--with-sysroot</span></samp> is not given an argument, is -<samp><span class="option">${gcc_tooldir}/sys-root</span></samp>. If the specified directory is a -subdirectory of <samp><span class="option">${exec_prefix}</span></samp>, then it will be found relative to -the GCC binaries if the installation tree is moved. - - <p>This option affects the system root for the compiler used to build -target libraries (which runs on the build system) and the compiler newly -installed with <code>make install</code>; it does not affect the compiler which is -used to build GCC itself. - - <p>If you specify the <samp><span class="option">--with-native-system-header-dir=</span><var>dirname</var></samp> -option then the compiler will search that directory within <var>dirname</var> for -native system headers rather than the default <samp><span class="file">/usr/include</span></samp>. - - <br><dt><code>--with-build-sysroot</code><dt><code>--with-build-sysroot=</code><var>dir</var><dd>Tells GCC to consider <var>dir</var> as the system root (see -<samp><span class="option">--with-sysroot</span></samp>) while building target libraries, instead of -the directory specified with <samp><span class="option">--with-sysroot</span></samp>. This option is -only useful when you are already using <samp><span class="option">--with-sysroot</span></samp>. You -can use <samp><span class="option">--with-build-sysroot</span></samp> when you are configuring with -<samp><span class="option">--prefix</span></samp> set to a directory that is different from the one in -which you are installing GCC and your target libraries. - - <p>This option affects the system root for the compiler used to build -target libraries (which runs on the build system); it does not affect -the compiler which is used to build GCC itself. - - <p>If you specify the <samp><span class="option">--with-native-system-header-dir=</span><var>dirname</var></samp> -option then the compiler will search that directory within <var>dirname</var> for -native system headers rather than the default <samp><span class="file">/usr/include</span></samp>. - - <br><dt><code>--with-headers</code><dt><code>--with-headers=</code><var>dir</var><dd>Deprecated in favor of <samp><span class="option">--with-sysroot</span></samp>. -Specifies that target headers are available when building a cross compiler. -The <var>dir</var> argument specifies a directory which has the target include -files. These include files will be copied into the <samp><span class="file">gcc</span></samp> install -directory. <em>This option with the </em><var>dir</var><em> argument is required</em> when -building a cross compiler, if <samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/sys-include</span></samp> -doesn't pre-exist. If <samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/sys-include</span></samp> does -pre-exist, the <var>dir</var> argument may be omitted. <samp><span class="command">fixincludes</span></samp> -will be run on these files to make them compatible with GCC. - - <br><dt><code>--without-headers</code><dd>Tells GCC not use any target headers from a libc when building a cross -compiler. When crossing to GNU/Linux, you need the headers so GCC -can build the exception handling for libgcc. - - <br><dt><code>--with-libs</code><dt><code>--with-libs="</code><var>dir1</var> <var>dir2</var><code> ... </code><var>dirN</var><code>"</code><dd>Deprecated in favor of <samp><span class="option">--with-sysroot</span></samp>. -Specifies a list of directories which contain the target runtime -libraries. These libraries will be copied into the <samp><span class="file">gcc</span></samp> install -directory. If the directory list is omitted, this option has no -effect. - - <br><dt><code>--with-newlib</code><dd>Specifies that ‘<samp><span class="samp">newlib</span></samp>’ is -being used as the target C library. This causes <code>__eprintf</code> to be -omitted from <samp><span class="file">libgcc.a</span></samp> on the assumption that it will be provided by -‘<samp><span class="samp">newlib</span></samp>’. - - <br><dt><code>--with-avrlibc</code><dd>Specifies that ‘<samp><span class="samp">AVR-Libc</span></samp>’ is -being used as the target C library. This causes float support -functions like <code>__addsf3</code> to be omitted from <samp><span class="file">libgcc.a</span></samp> on -the assumption that it will be provided by <samp><span class="file">libm.a</span></samp>. For more -technical details, cf. <a href="http://gcc.gnu.org/PR54461">PR54461</a>. -This option is only supported for the AVR target. It is not supported for -RTEMS configurations, which currently use newlib. The option is -supported since version 4.7.2 and is the default in 4.8.0 and newer. - - <br><dt><code>--with-build-time-tools=</code><var>dir</var><dd>Specifies where to find the set of target tools (assembler, linker, etc.) -that will be used while building GCC itself. This option can be useful -if the directory layouts are different between the system you are building -GCC on, and the system where you will deploy it. - - <p>For example, on an ‘<samp><span class="samp">ia64-hp-hpux</span></samp>’ system, you may have the GNU -assembler and linker in <samp><span class="file">/usr/bin</span></samp>, and the native tools in a -different path, and build a toolchain that expects to find the -native tools in <samp><span class="file">/usr/bin</span></samp>. - - <p>When you use this option, you should ensure that <var>dir</var> includes -<samp><span class="command">ar</span></samp>, <samp><span class="command">as</span></samp>, <samp><span class="command">ld</span></samp>, <samp><span class="command">nm</span></samp>, -<samp><span class="command">ranlib</span></samp> and <samp><span class="command">strip</span></samp> if necessary, and possibly -<samp><span class="command">objdump</span></samp>. Otherwise, GCC may use an inconsistent set of -tools. -</dl> - -<h4 class="subheading"><a name="TOC4"></a>Java-Specific Options</h4> - -<p>The following option applies to the build of the Java front end. - - <dl> -<dt><code>--disable-libgcj</code><dd>Specify that the run-time libraries -used by GCJ should not be built. This is useful in case you intend -to use GCJ with some other run-time, or you're going to install it -separately, or it just happens not to build on your particular -machine. In general, if the Java front end is enabled, the GCJ -libraries will be enabled too, unless they're known to not work on -the target platform. If GCJ is enabled but ‘<samp><span class="samp">libgcj</span></samp>’ isn't built, you -may need to port it; in this case, before modifying the top-level -<samp><span class="file">configure.in</span></samp> so that ‘<samp><span class="samp">libgcj</span></samp>’ is enabled by default on this platform, -you may use <samp><span class="option">--enable-libgcj</span></samp> to override the default. - - </dl> - - <p>The following options apply to building ‘<samp><span class="samp">libgcj</span></samp>’. - -<h5 class="subsubheading"><a name="TOC5"></a>General Options</h5> - - <dl> -<dt><code>--enable-java-maintainer-mode</code><dd>By default the ‘<samp><span class="samp">libjava</span></samp>’ build will not attempt to compile the -<samp><span class="file">.java</span></samp> source files to <samp><span class="file">.class</span></samp>. Instead, it will use the -<samp><span class="file">.class</span></samp> files from the source tree. If you use this option you -must have executables named <samp><span class="command">ecj1</span></samp> and <samp><span class="command">gjavah</span></samp> in your path -for use by the build. You must use this option if you intend to -modify any <samp><span class="file">.java</span></samp> files in <samp><span class="file">libjava</span></samp>. - - <br><dt><code>--with-java-home=</code><var>dirname</var><dd>This ‘<samp><span class="samp">libjava</span></samp>’ option overrides the default value of the -‘<samp><span class="samp">java.home</span></samp>’ system property. It is also used to set -‘<samp><span class="samp">sun.boot.class.path</span></samp>’ to <samp><var>dirname</var><span class="file">/lib/rt.jar</span></samp>. By -default ‘<samp><span class="samp">java.home</span></samp>’ is set to <samp><var>prefix</var></samp> and -‘<samp><span class="samp">sun.boot.class.path</span></samp>’ to -<samp><var>datadir</var><span class="file">/java/libgcj-</span><var>version</var><span class="file">.jar</span></samp>. - - <br><dt><code>--with-ecj-jar=</code><var>filename</var><dd>This option can be used to specify the location of an external jar -file containing the Eclipse Java compiler. A specially modified -version of this compiler is used by <samp><span class="command">gcj</span></samp> to parse -<samp><span class="file">.java</span></samp> source files. If this option is given, the -‘<samp><span class="samp">libjava</span></samp>’ build will create and install an <samp><span class="file">ecj1</span></samp> executable -which uses this jar file at runtime. - - <p>If this option is not given, but an <samp><span class="file">ecj.jar</span></samp> file is found in -the topmost source tree at configure time, then the ‘<samp><span class="samp">libgcj</span></samp>’ -build will create and install <samp><span class="file">ecj1</span></samp>, and will also install the -discovered <samp><span class="file">ecj.jar</span></samp> into a suitable place in the install tree. - - <p>If <samp><span class="file">ecj1</span></samp> is not installed, then the user will have to supply one -on his path in order for <samp><span class="command">gcj</span></samp> to properly parse <samp><span class="file">.java</span></samp> -source files. A suitable jar is available from -<a href="ftp://sourceware.org/pub/java/">ftp://sourceware.org/pub/java/</a>. - - <br><dt><code>--disable-getenv-properties</code><dd>Don't set system properties from <samp><span class="env">GCJ_PROPERTIES</span></samp>. - - <br><dt><code>--enable-hash-synchronization</code><dd>Use a global hash table for monitor locks. Ordinarily, -‘<samp><span class="samp">libgcj</span></samp>’'s ‘<samp><span class="samp">configure</span></samp>’ script automatically makes -the correct choice for this option for your platform. Only use -this if you know you need the library to be configured differently. - - <br><dt><code>--enable-interpreter</code><dd>Enable the Java interpreter. The interpreter is automatically -enabled by default on all platforms that support it. This option -is really only useful if you want to disable the interpreter -(using <samp><span class="option">--disable-interpreter</span></samp>). - - <br><dt><code>--disable-java-net</code><dd>Disable java.net. This disables the native part of java.net only, -using non-functional stubs for native method implementations. - - <br><dt><code>--disable-jvmpi</code><dd>Disable JVMPI support. - - <br><dt><code>--disable-libgcj-bc</code><dd>Disable BC ABI compilation of certain parts of libgcj. By default, -some portions of libgcj are compiled with <samp><span class="option">-findirect-dispatch</span></samp> -and <samp><span class="option">-fno-indirect-classes</span></samp>, allowing them to be overridden at -run-time. - - <p>If <samp><span class="option">--disable-libgcj-bc</span></samp> is specified, libgcj is built without -these options. This allows the compile-time linker to resolve -dependencies when statically linking to libgcj. However it makes it -impossible to override the affected portions of libgcj at run-time. - - <br><dt><code>--enable-reduced-reflection</code><dd>Build most of libgcj with <samp><span class="option">-freduced-reflection</span></samp>. This reduces -the size of libgcj at the expense of not being able to do accurate -reflection on the classes it contains. This option is safe if you -know that code using libgcj will never use reflection on the standard -runtime classes in libgcj (including using serialization, RMI or CORBA). - - <br><dt><code>--with-ecos</code><dd>Enable runtime eCos target support. - - <br><dt><code>--without-libffi</code><dd>Don't use ‘<samp><span class="samp">libffi</span></samp>’. This will disable the interpreter and JNI -support as well, as these require ‘<samp><span class="samp">libffi</span></samp>’ to work. - - <br><dt><code>--enable-libgcj-debug</code><dd>Enable runtime debugging code. - - <br><dt><code>--enable-libgcj-multifile</code><dd>If specified, causes all <samp><span class="file">.java</span></samp> source files to be -compiled into <samp><span class="file">.class</span></samp> files in one invocation of -‘<samp><span class="samp">gcj</span></samp>’. This can speed up build time, but is more -resource-intensive. If this option is unspecified or -disabled, ‘<samp><span class="samp">gcj</span></samp>’ is invoked once for each <samp><span class="file">.java</span></samp> -file to compile into a <samp><span class="file">.class</span></samp> file. - - <br><dt><code>--with-libiconv-prefix=DIR</code><dd>Search for libiconv in <samp><span class="file">DIR/include</span></samp> and <samp><span class="file">DIR/lib</span></samp>. - - <br><dt><code>--enable-sjlj-exceptions</code><dd>Force use of the <code>setjmp</code>/<code>longjmp</code>-based scheme for exceptions. -‘<samp><span class="samp">configure</span></samp>’ ordinarily picks the correct value based on the platform. -Only use this option if you are sure you need a different setting. - - <br><dt><code>--with-system-zlib</code><dd>Use installed ‘<samp><span class="samp">zlib</span></samp>’ rather than that included with GCC. - - <br><dt><code>--with-win32-nlsapi=ansi, unicows or unicode</code><dd>Indicates how MinGW ‘<samp><span class="samp">libgcj</span></samp>’ translates between UNICODE -characters and the Win32 API. - - <br><dt><code>--enable-java-home</code><dd>If enabled, this creates a JPackage compatible SDK environment during install. -Note that if –enable-java-home is used, –with-arch-directory=ARCH must also -be specified. - - <br><dt><code>--with-arch-directory=ARCH</code><dd>Specifies the name to use for the <samp><span class="file">jre/lib/ARCH</span></samp> directory in the SDK -environment created when –enable-java-home is passed. Typical names for this -directory include i386, amd64, ia64, etc. - - <br><dt><code>--with-os-directory=DIR</code><dd>Specifies the OS directory for the SDK include directory. This is set to auto -detect, and is typically 'linux'. - - <br><dt><code>--with-origin-name=NAME</code><dd>Specifies the JPackage origin name. This defaults to the 'gcj' in -java-1.5.0-gcj. - - <br><dt><code>--with-arch-suffix=SUFFIX</code><dd>Specifies the suffix for the sdk directory. Defaults to the empty string. -Examples include '.x86_64' in 'java-1.5.0-gcj-1.5.0.0.x86_64'. - - <br><dt><code>--with-jvm-root-dir=DIR</code><dd>Specifies where to install the SDK. Default is $(prefix)/lib/jvm. - - <br><dt><code>--with-jvm-jar-dir=DIR</code><dd>Specifies where to install jars. Default is $(prefix)/lib/jvm-exports. - - <br><dt><code>--with-python-dir=DIR</code><dd>Specifies where to install the Python modules used for aot-compile. DIR should -not include the prefix used in installation. For example, if the Python modules -are to be installed in /usr/lib/python2.5/site-packages, then -–with-python-dir=/lib/python2.5/site-packages should be passed. If this is -not specified, then the Python modules are installed in $(prefix)/share/python. - - <br><dt><code>--enable-aot-compile-rpm</code><dd>Adds aot-compile-rpm to the list of installed scripts. - - <br><dt><code>--enable-browser-plugin</code><dd>Build the gcjwebplugin web browser plugin. - - <br><dt><code>--enable-static-libjava</code><dd>Build static libraries in libjava. The default is to only build shared -libraries. - - <dl> -<dt><code>ansi</code><dd>Use the single-byte <code>char</code> and the Win32 A functions natively, -translating to and from UNICODE when using these functions. If -unspecified, this is the default. - - <br><dt><code>unicows</code><dd>Use the <code>WCHAR</code> and Win32 W functions natively. Adds -<code>-lunicows</code> to <samp><span class="file">libgcj.spec</span></samp> to link with ‘<samp><span class="samp">libunicows</span></samp>’. -<samp><span class="file">unicows.dll</span></samp> needs to be deployed on Microsoft Windows 9X machines -running built executables. <samp><span class="file">libunicows.a</span></samp>, an open-source -import library around Microsoft's <code>unicows.dll</code>, is obtained from -<a href="http://libunicows.sourceforge.net/">http://libunicows.sourceforge.net/</a>, which also gives details -on getting <samp><span class="file">unicows.dll</span></samp> from Microsoft. - - <br><dt><code>unicode</code><dd>Use the <code>WCHAR</code> and Win32 W functions natively. Does <em>not</em> -add <code>-lunicows</code> to <samp><span class="file">libgcj.spec</span></samp>. The built executables will -only run on Microsoft Windows NT and above. -</dl> - </dl> - -<h5 class="subsubheading"><a name="TOC6"></a>AWT-Specific Options</h5> - - <dl> -<dt><code>--with-x</code><dd>Use the X Window System. - - <br><dt><code>--enable-java-awt=PEER(S)</code><dd>Specifies the AWT peer library or libraries to build alongside -‘<samp><span class="samp">libgcj</span></samp>’. If this option is unspecified or disabled, AWT -will be non-functional. Current valid values are <samp><span class="option">gtk</span></samp> and -<samp><span class="option">xlib</span></samp>. Multiple libraries should be separated by a -comma (i.e. <samp><span class="option">--enable-java-awt=gtk,xlib</span></samp>). - - <br><dt><code>--enable-gtk-cairo</code><dd>Build the cairo Graphics2D implementation on GTK. - - <br><dt><code>--enable-java-gc=TYPE</code><dd>Choose garbage collector. Defaults to <samp><span class="option">boehm</span></samp> if unspecified. - - <br><dt><code>--disable-gtktest</code><dd>Do not try to compile and run a test GTK+ program. - - <br><dt><code>--disable-glibtest</code><dd>Do not try to compile and run a test GLIB program. - - <br><dt><code>--with-libart-prefix=PFX</code><dd>Prefix where libart is installed (optional). - - <br><dt><code>--with-libart-exec-prefix=PFX</code><dd>Exec prefix where libart is installed (optional). - - <br><dt><code>--disable-libarttest</code><dd>Do not try to compile and run a test libart program. - -</dl> - -<h5 class="subsubheading"><a name="TOC7"></a>Overriding <samp><span class="command">configure</span></samp> test results</h5> - -<p>Sometimes, it might be necessary to override the result of some -<samp><span class="command">configure</span></samp> test, for example in order to ease porting to a new -system or work around a bug in a test. The toplevel <samp><span class="command">configure</span></samp> -script provides three variables for this: - - <dl> -<dt><code>build_configargs</code><dd><a name="index-g_t_0040code_007bbuild_005fconfigargs_007d-3"></a>The contents of this variable is passed to all build <samp><span class="command">configure</span></samp> -scripts. - - <br><dt><code>host_configargs</code><dd><a name="index-g_t_0040code_007bhost_005fconfigargs_007d-4"></a>The contents of this variable is passed to all host <samp><span class="command">configure</span></samp> -scripts. - - <br><dt><code>target_configargs</code><dd><a name="index-g_t_0040code_007btarget_005fconfigargs_007d-5"></a>The contents of this variable is passed to all target <samp><span class="command">configure</span></samp> -scripts. - - </dl> - - <p>In order to avoid shell and <samp><span class="command">make</span></samp> quoting issues for complex -overrides, you can pass a setting for <samp><span class="env">CONFIG_SITE</span></samp> and set -variables in the site file. - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***Building**************************************************************** --> -<!-- ***Testing***************************************************************** --> -<!-- ***Final install*********************************************************** --> -<!-- ***Binaries**************************************************************** --> -<!-- ***Specific**************************************************************** --> -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/download.html b/gcc-4.8/INSTALL/download.html deleted file mode 100644 index 5eb846647..000000000 --- a/gcc-4.8/INSTALL/download.html +++ /dev/null @@ -1,87 +0,0 @@ -<html lang="en"> -<head> -<title>Downloading GCC</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Downloading GCC"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Downloading GCC</h1> -<a name="index-Downloading-GCC-1"></a><a name="index-Downloading-the-Source-2"></a> -GCC is distributed via <a href="http://gcc.gnu.org/svn.html">SVN</a> and FTP -tarballs compressed with <samp><span class="command">gzip</span></samp> or -<samp><span class="command">bzip2</span></samp>. - - <p>Please refer to the <a href="http://gcc.gnu.org/releases.html">releases web page</a> -for information on how to obtain GCC. - - <p>The source distribution includes the C, C++, Objective-C, Fortran, Java, -and Ada (in the case of GCC 3.1 and later) compilers, as well as -runtime libraries for C++, Objective-C, Fortran, and Java. -For previous versions these were downloadable as separate components such -as the core GCC distribution, which included the C language front end and -shared components, and language-specific distributions including the -language front end and the language runtime (where appropriate). - - <p>If you also intend to build binutils (either to upgrade an existing -installation or for use in place of the corresponding tools of your -OS), unpack the binutils distribution either in the same directory or -a separate one. In the latter case, add symbolic links to any -components of the binutils you intend to build alongside the compiler -(<samp><span class="file">bfd</span></samp>, <samp><span class="file">binutils</span></samp>, <samp><span class="file">gas</span></samp>, <samp><span class="file">gprof</span></samp>, <samp><span class="file">ld</span></samp>, -<samp><span class="file">opcodes</span></samp>, <small class="dots">...</small>) to the directory containing the GCC sources. - - <p>Likewise the GMP, MPFR and MPC libraries can be automatically built -together with GCC. Unpack the GMP, MPFR and/or MPC source -distributions in the directory containing the GCC sources and rename -their directories to <samp><span class="file">gmp</span></samp>, <samp><span class="file">mpfr</span></samp> and <samp><span class="file">mpc</span></samp>, -respectively (or use symbolic links with the same name). - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***Configuration*********************************************************** --> -<!-- ***Building**************************************************************** --> -<!-- ***Testing***************************************************************** --> -<!-- ***Final install*********************************************************** --> -<!-- ***Binaries**************************************************************** --> -<!-- ***Specific**************************************************************** --> -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/finalinstall.html b/gcc-4.8/INSTALL/finalinstall.html deleted file mode 100644 index 18ba78262..000000000 --- a/gcc-4.8/INSTALL/finalinstall.html +++ /dev/null @@ -1,172 +0,0 @@ -<html lang="en"> -<head> -<title>Installing GCC: Final installation</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Installing GCC: Final installation"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Installing GCC: Final installation</h1> -Now that GCC has been built (and optionally tested), you can install it with -<pre class="smallexample"> cd <var>objdir</var> && make install -</pre> - <p>We strongly recommend to install into a target directory where there is -no previous version of GCC present. Also, the GNAT runtime should not -be stripped, as this would break certain features of the debugger that -depend on this debugging information (catching Ada exceptions for -instance). - - <p>That step completes the installation of GCC; user level binaries can -be found in <samp><var>prefix</var><span class="file">/bin</span></samp> where <var>prefix</var> is the value -you specified with the <samp><span class="option">--prefix</span></samp> to configure (or -<samp><span class="file">/usr/local</span></samp> by default). (If you specified <samp><span class="option">--bindir</span></samp>, -that directory will be used instead; otherwise, if you specified -<samp><span class="option">--exec-prefix</span></samp>, <samp><var>exec-prefix</var><span class="file">/bin</span></samp> will be used.) -Headers for the C++ and Java libraries are installed in -<samp><var>prefix</var><span class="file">/include</span></samp>; libraries in <samp><var>libdir</var></samp> -(normally <samp><var>prefix</var><span class="file">/lib</span></samp>); internal parts of the compiler in -<samp><var>libdir</var><span class="file">/gcc</span></samp> and <samp><var>libexecdir</var><span class="file">/gcc</span></samp>; documentation -in info format in <samp><var>infodir</var></samp> (normally -<samp><var>prefix</var><span class="file">/info</span></samp>). - - <p>When installing cross-compilers, GCC's executables -are not only installed into <samp><var>bindir</var></samp>, that -is, <samp><var>exec-prefix</var><span class="file">/bin</span></samp>, but additionally into -<samp><var>exec-prefix</var><span class="file">/</span><var>target-alias</var><span class="file">/bin</span></samp>, if that directory -exists. Typically, such <dfn>tooldirs</dfn> hold target-specific -binutils, including assembler and linker. - - <p>Installation into a temporary staging area or into a <samp><span class="command">chroot</span></samp> -jail can be achieved with the command - -<pre class="smallexample"> make DESTDIR=<var>path-to-rootdir</var> install -</pre> - <p class="noindent">where <var>path-to-rootdir</var> is the absolute path of -a directory relative to which all installation paths will be -interpreted. Note that the directory specified by <code>DESTDIR</code> -need not exist yet; it will be created if necessary. - - <p>There is a subtle point with tooldirs and <code>DESTDIR</code>: -If you relocate a cross-compiler installation with -e.g. ‘<samp><span class="samp">DESTDIR=</span><var>rootdir</var></samp>’, then the directory -<samp><var>rootdir</var><span class="file">/</span><var>exec-prefix</var><span class="file">/</span><var>target-alias</var><span class="file">/bin</span></samp> will -be filled with duplicated GCC executables only if it already exists, -it will not be created otherwise. This is regarded as a feature, -not as a bug, because it gives slightly more control to the packagers -using the <code>DESTDIR</code> feature. - - <p>You can install stripped programs and libraries with - -<pre class="smallexample"> make install-strip -</pre> - <p>If you are bootstrapping a released version of GCC then please -quickly review the build status page for your release, available from -<a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>. -If your system is not listed for the version of GCC that you built, -send a note to -<a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> indicating -that you successfully built and installed GCC. -Include the following information: - - <ul> -<li>Output from running <samp><var>srcdir</var><span class="file">/config.guess</span></samp>. Do not send -that file itself, just the one-line output from running it. - - <li>The output of ‘<samp><span class="samp">gcc -v</span></samp>’ for your newly installed <samp><span class="command">gcc</span></samp>. -This tells us which version of GCC you built and the options you passed to -configure. - - <li>Whether you enabled all languages or a subset of them. 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The new entry in the build status list -will include a link to the archived copy of your message. -</ul> - - <p>We'd also like to know if the -<a href="specific.html">host/target specific installation notes</a> -didn't include your host/target information or if that information is -incomplete or out of date. Send a note to -<a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> detailing how the information should be changed. - - <p>If you find a bug, please report it following the -<a href="../bugs/">bug reporting guidelines</a>. - - <p>If you want to print the GCC manuals, do ‘<samp><span class="samp">cd </span><var>objdir</var><span class="samp">; make -dvi</span></samp>’. You will need to have <samp><span class="command">texi2dvi</span></samp> (version at least 4.7) -and TeX installed. This creates a number of <samp><span class="file">.dvi</span></samp> files in -subdirectories of <samp><var>objdir</var></samp>; these may be converted for -printing with programs such as <samp><span class="command">dvips</span></samp>. Alternately, by using -‘<samp><span class="samp">make pdf</span></samp>’ in place of ‘<samp><span class="samp">make dvi</span></samp>’, you can create documentation -in the form of <samp><span class="file">.pdf</span></samp> files; this requires <samp><span class="command">texi2pdf</span></samp>, which -is included with Texinfo version 4.8 and later. You can also -<a href="http://shop.fsf.org/">buy printed manuals from the Free Software Foundation</a>, though such manuals may not be for the most -recent version of GCC. - - <p>If you would like to generate online HTML documentation, do ‘<samp><span class="samp">cd -</span><var>objdir</var><span class="samp">; make html</span></samp>’ and HTML will be generated for the gcc manuals in -<samp><var>objdir</var><span class="file">/gcc/HTML</span></samp>. - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***Binaries**************************************************************** --> -<!-- ***Specific**************************************************************** --> -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/gfdl.html b/gcc-4.8/INSTALL/gfdl.html deleted file mode 100644 index 10fdaa3bb..000000000 --- a/gcc-4.8/INSTALL/gfdl.html +++ /dev/null @@ -1,515 +0,0 @@ -<html lang="en"> -<head> -<title>Installing GCC: GNU Free Documentation License</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Installing GCC: GNU Free Documentation License"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). 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A copy of the license is included in the section entitled ``GNU - Free Documentation License''. -</pre> - <p>If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, -replace the “with...Texts.” line with this: - -<pre class="smallexample"> with the Invariant Sections being <var>list their titles</var>, with - the Front-Cover Texts being <var>list</var>, and with the Back-Cover Texts - being <var>list</var>. -</pre> - <p>If you have Invariant Sections without Cover Texts, or some other -combination of the three, merge those two alternatives to suit the -situation. - - <p>If your document contains nontrivial examples of program code, we -recommend releasing these examples in parallel under your choice of -free software license, such as the GNU General Public License, -to permit their use in free software. - -<!-- Local Variables: --> -<!-- ispell-local-pdict: "ispell-dict" --> -<!-- End: --> -<!-- man end --> - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/index.html b/gcc-4.8/INSTALL/index.html deleted file mode 100644 index 29e6ee076..000000000 --- a/gcc-4.8/INSTALL/index.html +++ /dev/null @@ -1,123 +0,0 @@ -<html lang="en"> -<head> -<title>Installing GCC</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Installing GCC"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Installing GCC</h1> -The latest version of this document is always available at -<a href="http://gcc.gnu.org/install/">http://gcc.gnu.org/install/</a>. -It refers to the current development sources, instructions for -specific released versions are included with the sources. - - <p>This document describes the generic installation procedure for GCC as well -as detailing some target specific installation instructions. - - <p>GCC includes several components that previously were separate distributions -with their own installation instructions. This document supersedes all -package-specific installation instructions. - - <p><em>Before</em> starting the build/install procedure please check the -<a href="specific.html">host/target specific installation notes</a>. -We recommend you browse the entire generic installation instructions before -you proceed. - - <p>Lists of successful builds for released versions of GCC are -available at <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>. -These lists are updated as new information becomes available. - - <p>The installation procedure itself is broken into five steps. - - <ol type=1 start=1> -<li><a href="prerequisites.html">Prerequisites</a> -<li><a href="download.html">Downloading the source</a> -<li><a href="configure.html">Configuration</a> -<li><a href="build.html">Building</a> -<li><a href="test.html">Testing</a> (optional) -<li><a href="finalinstall.html">Final install</a> - </ol> - - <p>Please note that GCC does not support ‘<samp><span class="samp">make uninstall</span></samp>’ and probably -won't do so in the near future as this would open a can of worms. Instead, -we suggest that you install GCC into a directory of its own and simply -remove that directory when you do not need that specific version of GCC -any longer, and, if shared libraries are installed there as well, no -more binaries exist that use them. - - <p>There are also some <a href="old.html">old installation instructions</a>, -which are mostly obsolete but still contain some information which has -not yet been merged into the main part of this manual. - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - - <p>Copyright © 1988-2013 Free Software Foundation, Inc. - <pre class="sp"> - -</pre> -Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled “<a href="./gfdl.html">GNU Free Documentation License</a>”. - - <p>(a) The FSF's Front-Cover Text is: - - <p>A GNU Manual - - <p>(b) The FSF's Back-Cover Text is: - - <p>You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development. - -<!-- ***Prerequisites************************************************** --> -<!-- ***Downloading the source************************************************** --> -<!-- ***Configuration*********************************************************** --> -<!-- ***Building**************************************************************** --> -<!-- ***Testing***************************************************************** --> -<!-- ***Final install*********************************************************** --> -<!-- ***Binaries**************************************************************** --> -<!-- ***Specific**************************************************************** --> -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/old.html b/gcc-4.8/INSTALL/old.html deleted file mode 100644 index 4d814038f..000000000 --- a/gcc-4.8/INSTALL/old.html +++ /dev/null @@ -1,201 +0,0 @@ -<html lang="en"> -<head> -<title>Installing GCC: Old documentation</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Installing GCC: Old documentation"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Installing GCC: Old documentation</h1> -<h1 align="center">Old installation documentation</h1> - - <p>Note most of this information is out of date and superseded by the -previous chapters of this manual. It is provided for historical -reference only, because of a lack of volunteers to merge it into the -main manual. - - <p>Here is the procedure for installing GCC on a GNU or Unix system. - - <ol type=1 start=1> -<li>If you have chosen a configuration for GCC which requires other GNU -tools (such as GAS or the GNU linker) instead of the standard system -tools, install the required tools in the build directory under the names -<samp><span class="file">as</span></samp>, <samp><span class="file">ld</span></samp> or whatever is appropriate. - - <p>Alternatively, you can do subsequent compilation using a value of the -<code>PATH</code> environment variable such that the necessary GNU tools come -before the standard system tools. - - <li>Specify the host, build and target machine configurations. You do this -when you run the <samp><span class="file">configure</span></samp> script. - - <p>The <dfn>build</dfn> machine is the system which you are using, the -<dfn>host</dfn> machine is the system where you want to run the resulting -compiler (normally the build machine), and the <dfn>target</dfn> machine is -the system for which you want the compiler to generate code. - - <p>If you are building a compiler to produce code for the machine it runs -on (a native compiler), you normally do not need to specify any operands -to <samp><span class="file">configure</span></samp>; it will try to guess the type of machine you are on -and use that as the build, host and target machines. So you don't need -to specify a configuration when building a native compiler unless -<samp><span class="file">configure</span></samp> cannot figure out what your configuration is or guesses -wrong. - - <p>In those cases, specify the build machine's <dfn>configuration name</dfn> -with the <samp><span class="option">--host</span></samp> option; the host and target will default to be -the same as the host machine. - - <p>Here is an example: - - <pre class="smallexample"> ./configure --host=sparc-sun-sunos4.1 -</pre> - <p>A configuration name may be canonical or it may be more or less -abbreviated. - - <p>A canonical configuration name has three parts, separated by dashes. -It looks like this: ‘<samp><var>cpu</var><span class="samp">-</span><var>company</var><span class="samp">-</span><var>system</var></samp>’. -(The three parts may themselves contain dashes; <samp><span class="file">configure</span></samp> -can figure out which dashes serve which purpose.) For example, -‘<samp><span class="samp">m68k-sun-sunos4.1</span></samp>’ specifies a Sun 3. - - <p>You can also replace parts of the configuration by nicknames or aliases. -For example, ‘<samp><span class="samp">sun3</span></samp>’ stands for ‘<samp><span class="samp">m68k-sun</span></samp>’, so -‘<samp><span class="samp">sun3-sunos4.1</span></samp>’ is another way to specify a Sun 3. - - <p>You can specify a version number after any of the system types, and some -of the CPU types. In most cases, the version is irrelevant, and will be -ignored. So you might as well specify the version if you know it. - - <p>See <a href="#Configurations">Configurations</a>, for a list of supported configuration names and -notes on many of the configurations. You should check the notes in that -section before proceeding any further with the installation of GCC. - - </ol> - - <p><h2><a name="Configurations"></a>Configurations Supported by GCC</h2><a name="index-configurations-supported-by-GCC-1"></a> -Here are the possible CPU types: - - <blockquote> -<!-- gmicro, fx80, spur and tahoe omitted since they don't work. --> -1750a, a29k, alpha, arm, avr, c<var>n</var>, clipper, dsp16xx, elxsi, fr30, h8300, -hppa1.0, hppa1.1, i370, i386, i486, i586, i686, i786, i860, i960, ip2k, m32r, -m68000, m68k, m88k, mcore, mips, mipsel, mips64, mips64el, -mn10200, mn10300, ns32k, pdp11, powerpc, powerpcle, romp, rs6000, sh, sparc, -sparclite, sparc64, v850, vax, we32k. -</blockquote> - - <p>Here are the recognized company names. As you can see, customary -abbreviations are used rather than the longer official names. - -<!-- What should be done about merlin, tek*, dolphin? --> - <blockquote> -acorn, alliant, altos, apollo, apple, att, bull, -cbm, convergent, convex, crds, dec, dg, dolphin, -elxsi, encore, harris, hitachi, hp, ibm, intergraph, isi, -mips, motorola, ncr, next, ns, omron, plexus, -sequent, sgi, sony, sun, tti, unicom, wrs. -</blockquote> - - <p>The company name is meaningful only to disambiguate when the rest of -the information supplied is insufficient. You can omit it, writing -just ‘<samp><var>cpu</var><span class="samp">-</span><var>system</var></samp>’, if it is not needed. For example, -‘<samp><span class="samp">vax-ultrix4.2</span></samp>’ is equivalent to ‘<samp><span class="samp">vax-dec-ultrix4.2</span></samp>’. - - <p>Here is a list of system types: - - <blockquote> -386bsd, aix, acis, amigaos, aos, aout, aux, bosx, bsd, clix, coff, ctix, cxux, -dgux, dynix, ebmon, ecoff, elf, esix, freebsd, hms, genix, gnu, linux, -linux-gnu, hiux, hpux, iris, irix, isc, luna, lynxos, mach, minix, msdos, mvs, -netbsd, newsos, nindy, ns, osf, osfrose, ptx, riscix, riscos, rtu, sco, sim, -solaris, sunos, sym, sysv, udi, ultrix, unicos, uniplus, unos, vms, vsta, -vxworks, winnt, xenix. -</blockquote> - -<p class="noindent">You can omit the system type; then <samp><span class="file">configure</span></samp> guesses the -operating system from the CPU and company. - - <p>You can add a version number to the system type; this may or may not -make a difference. For example, you can write ‘<samp><span class="samp">bsd4.3</span></samp>’ or -‘<samp><span class="samp">bsd4.4</span></samp>’ to distinguish versions of BSD. In practice, the version -number is most needed for ‘<samp><span class="samp">sysv3</span></samp>’ and ‘<samp><span class="samp">sysv4</span></samp>’, which are often -treated differently. - - <p>‘<samp><span class="samp">linux-gnu</span></samp>’ is the canonical name for the GNU/Linux target; however -GCC will also accept ‘<samp><span class="samp">linux</span></samp>’. The version of the kernel in use is -not relevant on these systems. A suffix such as ‘<samp><span class="samp">libc1</span></samp>’ or ‘<samp><span class="samp">aout</span></samp>’ -distinguishes major versions of the C library; all of the suffixed versions -are obsolete. - - <p>If you specify an impossible combination such as ‘<samp><span class="samp">i860-dg-vms</span></samp>’, -then you may get an error message from <samp><span class="file">configure</span></samp>, or it may -ignore part of the information and do the best it can with the rest. -<samp><span class="file">configure</span></samp> always prints the canonical name for the alternative -that it used. GCC does not support all possible alternatives. - - <p>Often a particular model of machine has a name. Many machine names are -recognized as aliases for CPU/company combinations. Thus, the machine -name ‘<samp><span class="samp">sun3</span></samp>’, mentioned above, is an alias for ‘<samp><span class="samp">m68k-sun</span></samp>’. -Sometimes we accept a company name as a machine name, when the name is -popularly used for a particular machine. Here is a table of the known -machine names: - - <blockquote> -3300, 3b1, 3b<var>n</var>, 7300, altos3068, altos, -apollo68, att-7300, balance, -convex-c<var>n</var>, crds, decstation-3100, -decstation, delta, encore, -fx2800, gmicro, hp7<var>nn</var>, hp8<var>nn</var>, -hp9k2<var>nn</var>, hp9k3<var>nn</var>, hp9k7<var>nn</var>, -hp9k8<var>nn</var>, iris4d, iris, isi68, -m3230, magnum, merlin, miniframe, -mmax, news-3600, news800, news, next, -pbd, pc532, pmax, powerpc, powerpcle, ps2, risc-news, -rtpc, sun2, sun386i, sun386, sun3, -sun4, symmetry, tower-32, tower. -</blockquote> - -<p class="noindent">Remember that a machine name specifies both the cpu type and the company -name. -<hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/prerequisites.html b/gcc-4.8/INSTALL/prerequisites.html deleted file mode 100644 index 00e60df71..000000000 --- a/gcc-4.8/INSTALL/prerequisites.html +++ /dev/null @@ -1,296 +0,0 @@ -<html lang="en"> -<head> -<title>Prerequisites for GCC</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Prerequisites for GCC"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Prerequisites for GCC</h1> -<a name="index-Prerequisites-1"></a> -GCC requires that various tools and packages be available for use in the -build procedure. Modifying GCC sources requires additional tools -described below. - -<h3 class="heading"><a name="TOC0"></a>Tools/packages necessary for building GCC</h3> - - <dl> -<dt>ISO C++98 compiler<dd>Necessary to bootstrap GCC, although versions of GCC prior -to 4.8 also allow bootstrapping with a ISO C89 compiler and versions -of GCC prior to 3.4 also allow bootstrapping with a traditional -(K&R) C compiler. - - <p>To build all languages in a cross-compiler or other configuration where -3-stage bootstrap is not performed, you need to start with an existing -GCC binary (version 3.4 or later) because source code for language -frontends other than C might use GCC extensions. - - <p>Note that to bootstrap GCC with versions of GCC earlier than 3.4, you -may need to use <samp><span class="option">--disable-stage1-checking</span></samp>, though -bootstrapping the compiler with such earlier compilers is strongly -discouraged. - - <br><dt>GNAT<dd> -In order to build the Ada compiler (GNAT) you must already have GNAT -installed because portions of the Ada frontend are written in Ada (with -GNAT extensions.) Refer to the Ada installation instructions for more -specific information. - - <br><dt>A “working” POSIX compatible shell, or GNU bash<dd> -Necessary when running <samp><span class="command">configure</span></samp> because some -<samp><span class="command">/bin/sh</span></samp> shells have bugs and may crash when configuring the -target libraries. In other cases, <samp><span class="command">/bin/sh</span></samp> or <samp><span class="command">ksh</span></samp> -have disastrous corner-case performance problems. This -can cause target <samp><span class="command">configure</span></samp> runs to literally take days to -complete in some cases. - - <p>So on some platforms <samp><span class="command">/bin/ksh</span></samp> is sufficient, on others it -isn't. See the host/target specific instructions for your platform, or -use <samp><span class="command">bash</span></samp> to be sure. Then set <samp><span class="env">CONFIG_SHELL</span></samp> in your -environment to your “good” shell prior to running -<samp><span class="command">configure</span></samp>/<samp><span class="command">make</span></samp>. - - <p><samp><span class="command">zsh</span></samp> is not a fully compliant POSIX shell and will not -work when configuring GCC. - - <br><dt>A POSIX or SVR4 awk<dd> -Necessary for creating some of the generated source files for GCC. -If in doubt, use a recent GNU awk version, as some of the older ones -are broken. GNU awk version 3.1.5 is known to work. - - <br><dt>GNU binutils<dd> -Necessary in some circumstances, optional in others. See the -host/target specific instructions for your platform for the exact -requirements. - - <br><dt>gzip version 1.2.4 (or later) or<dt>bzip2 version 1.0.2 (or later)<dd> -Necessary to uncompress GCC <samp><span class="command">tar</span></samp> files when source code is -obtained via FTP mirror sites. - - <br><dt>GNU make version 3.80 (or later)<dd> -You must have GNU make installed to build GCC. - - <br><dt>GNU tar version 1.14 (or later)<dd> -Necessary (only on some platforms) to untar the source code. Many -systems' <samp><span class="command">tar</span></samp> programs will also work, only try GNU -<samp><span class="command">tar</span></samp> if you have problems. - - <br><dt>Perl version 5.6.1 (or later)<dd> -Necessary when targeting Darwin, building ‘<samp><span class="samp">libstdc++</span></samp>’, -and not using <samp><span class="option">--disable-symvers</span></samp>. -Necessary when targeting Solaris 2 with Sun <samp><span class="command">ld</span></samp> and not using -<samp><span class="option">--disable-symvers</span></samp>. The bundled <samp><span class="command">perl</span></samp> in Solaris 8 -and up works. - - <p>Necessary when regenerating <samp><span class="file">Makefile</span></samp> dependencies in libiberty. -Necessary when regenerating <samp><span class="file">libiberty/functions.texi</span></samp>. -Necessary when generating manpages from Texinfo manuals. -Used by various scripts to generate some files included in SVN (mainly -Unicode-related and rarely changing) from source tables. - - <br><dt><samp><span class="command">jar</span></samp>, or InfoZIP (<samp><span class="command">zip</span></samp> and <samp><span class="command">unzip</span></samp>)<dd> -Necessary to build libgcj, the GCJ runtime. - -</dl> - - <p>Several support libraries are necessary to build GCC, some are required, -others optional. While any sufficiently new version of required tools -usually work, library requirements are generally stricter. Newer -versions may work in some cases, but it's safer to use the exact -versions documented. We appreciate bug reports about problems with -newer versions, though. If your OS vendor provides packages for the -support libraries then using those packages may be the simplest way to -install the libraries. - - <dl> -<dt>GNU Multiple Precision Library (GMP) version 4.3.2 (or later)<dd> -Necessary to build GCC. If a GMP source distribution is found in a -subdirectory of your GCC sources named <samp><span class="file">gmp</span></samp>, it will be built -together with GCC. Alternatively, if GMP is already installed but it -is not in your library search path, you will have to configure with the -<samp><span class="option">--with-gmp</span></samp> configure option. See also <samp><span class="option">--with-gmp-lib</span></samp> -and <samp><span class="option">--with-gmp-include</span></samp>. - - <br><dt>MPFR Library version 2.4.2 (or later)<dd> -Necessary to build GCC. It can be downloaded from -<a href="http://www.mpfr.org/">http://www.mpfr.org/</a>. If an MPFR source distribution is found -in a subdirectory of your GCC sources named <samp><span class="file">mpfr</span></samp>, it will be -built together with GCC. Alternatively, if MPFR is already installed -but it is not in your default library search path, the -<samp><span class="option">--with-mpfr</span></samp> configure option should be used. See also -<samp><span class="option">--with-mpfr-lib</span></samp> and <samp><span class="option">--with-mpfr-include</span></samp>. - - <br><dt>MPC Library version 0.8.1 (or later)<dd> -Necessary to build GCC. It can be downloaded from -<a href="http://www.multiprecision.org/">http://www.multiprecision.org/</a>. If an MPC source distribution -is found in a subdirectory of your GCC sources named <samp><span class="file">mpc</span></samp>, it -will be built together with GCC. Alternatively, if MPC is already -installed but it is not in your default library search path, the -<samp><span class="option">--with-mpc</span></samp> configure option should be used. See also -<samp><span class="option">--with-mpc-lib</span></samp> and <samp><span class="option">--with-mpc-include</span></samp>. - - <br><dt>ISL Library version 0.11.1<dd> -Necessary to build GCC with the Graphite loop optimizations. -It can be downloaded from <a href="ftp://gcc.gnu.org/pub/gcc/infrastructure/">ftp://gcc.gnu.org/pub/gcc/infrastructure/</a> -as <samp><span class="file">isl-0.11.1.tar.bz2</span></samp>. - - <p>The <samp><span class="option">--with-isl</span></samp> configure option should be used if ISL is not -installed in your default library search path. - - <br><dt>CLooG 0.18.0<dd> -Necessary to build GCC with the Graphite loop optimizations. It can be -downloaded from <a href="ftp://gcc.gnu.org/pub/gcc/infrastructure/">ftp://gcc.gnu.org/pub/gcc/infrastructure/</a> as -<samp><span class="file">cloog-0.18.0.tar.gz</span></samp>. The <samp><span class="option">--with-cloog</span></samp> configure option should -be used if CLooG is not installed in your default library search path. -CLooG needs to be built against ISL 0.11.1. Use <samp><span class="option">--with-isl=system</span></samp> -to direct CLooG to pick up an already installed ISL, otherwise it will use -ISL 0.11.1 as bundled with CLooG. CLooG needs to be configured to use GMP -internally, use <samp><span class="option">--with-bits=gmp</span></samp> to direct it to do that. - - </dl> - -<h3 class="heading"><a name="TOC1"></a>Tools/packages necessary for modifying GCC</h3> - - <dl> -<dt>autoconf version 2.64<dt>GNU m4 version 1.4.6 (or later)<dd> -Necessary when modifying <samp><span class="file">configure.ac</span></samp>, <samp><span class="file">aclocal.m4</span></samp>, etc. -to regenerate <samp><span class="file">configure</span></samp> and <samp><span class="file">config.in</span></samp> files. - - <br><dt>automake version 1.11.1<dd> -Necessary when modifying a <samp><span class="file">Makefile.am</span></samp> file to regenerate its -associated <samp><span class="file">Makefile.in</span></samp>. - - <p>Much of GCC does not use automake, so directly edit the <samp><span class="file">Makefile.in</span></samp> -file. Specifically this applies to the <samp><span class="file">gcc</span></samp>, <samp><span class="file">intl</span></samp>, -<samp><span class="file">libcpp</span></samp>, <samp><span class="file">libiberty</span></samp>, <samp><span class="file">libobjc</span></samp> directories as well -as any of their subdirectories. - - <p>For directories that use automake, GCC requires the latest release in -the 1.11 series, which is currently 1.11.1. When regenerating a directory -to a newer version, please update all the directories using an older 1.11 -to the latest released version. - - <br><dt>gettext version 0.14.5 (or later)<dd> -Needed to regenerate <samp><span class="file">gcc.pot</span></samp>. - - <br><dt>gperf version 2.7.2 (or later)<dd> -Necessary when modifying <samp><span class="command">gperf</span></samp> input files, e.g. -<samp><span class="file">gcc/cp/cfns.gperf</span></samp> to regenerate its associated header file, e.g. -<samp><span class="file">gcc/cp/cfns.h</span></samp>. - - <br><dt>DejaGnu 1.4.4<dt>Expect<dt>Tcl<dd> -Necessary to run the GCC testsuite; see the section on testing for details. - - <br><dt>autogen version 5.5.4 (or later) and<dt>guile version 1.4.1 (or later)<dd> -Necessary to regenerate <samp><span class="file">fixinc/fixincl.x</span></samp> from -<samp><span class="file">fixinc/inclhack.def</span></samp> and <samp><span class="file">fixinc/*.tpl</span></samp>. - - <p>Necessary to run ‘<samp><span class="samp">make check</span></samp>’ for <samp><span class="file">fixinc</span></samp>. - - <p>Necessary to regenerate the top level <samp><span class="file">Makefile.in</span></samp> file from -<samp><span class="file">Makefile.tpl</span></samp> and <samp><span class="file">Makefile.def</span></samp>. - - <br><dt>Flex version 2.5.4 (or later)<dd> -Necessary when modifying <samp><span class="file">*.l</span></samp> files. - - <p>Necessary to build GCC during development because the generated output -files are not included in the SVN repository. They are included in -releases. - - <br><dt>Texinfo version 4.7 (or later)<dd> -Necessary for running <samp><span class="command">makeinfo</span></samp> when modifying <samp><span class="file">*.texi</span></samp> -files to test your changes. - - <p>Necessary for running <samp><span class="command">make dvi</span></samp> or <samp><span class="command">make pdf</span></samp> to -create printable documentation in DVI or PDF format. Texinfo version -4.8 or later is required for <samp><span class="command">make pdf</span></samp>. - - <p>Necessary to build GCC documentation during development because the -generated output files are not included in the SVN repository. They are -included in releases. - - <br><dt>TeX (any working version)<dd> -Necessary for running <samp><span class="command">texi2dvi</span></samp> and <samp><span class="command">texi2pdf</span></samp>, which -are used when running <samp><span class="command">make dvi</span></samp> or <samp><span class="command">make pdf</span></samp> to create -DVI or PDF files, respectively. - - <br><dt>SVN (any version)<dt>SSH (any version)<dd> -Necessary to access the SVN repository. Public releases and weekly -snapshots of the development sources are also available via FTP. - - <br><dt>GNU diffutils version 2.7 (or later)<dd> -Useful when submitting patches for the GCC source code. - - <br><dt>patch version 2.5.4 (or later)<dd> -Necessary when applying patches, created with <samp><span class="command">diff</span></samp>, to one's -own sources. - - <br><dt>ecj1<dt>gjavah<dd> -If you wish to modify <samp><span class="file">.java</span></samp> files in libjava, you will need to -configure with <samp><span class="option">--enable-java-maintainer-mode</span></samp>, and you will need -to have executables named <samp><span class="command">ecj1</span></samp> and <samp><span class="command">gjavah</span></samp> in your path. -The <samp><span class="command">ecj1</span></samp> executable should run the Eclipse Java compiler via -the GCC-specific entry point. You can download a suitable jar from -<a href="ftp://sourceware.org/pub/java/">ftp://sourceware.org/pub/java/</a>, or by running the script -<samp><span class="command">contrib/download_ecj</span></samp>. - - <br><dt>antlr.jar version 2.7.1 (or later)<dt>antlr binary<dd> -If you wish to build the <samp><span class="command">gjdoc</span></samp> binary in libjava, you will -need to have an <samp><span class="file">antlr.jar</span></samp> library available. The library is -searched for in system locations but can be specified with -<samp><span class="option">--with-antlr-jar=</span></samp> instead. When configuring with -<samp><span class="option">--enable-java-maintainer-mode</span></samp>, you will need to have one of -the executables named <samp><span class="command">cantlr</span></samp>, <samp><span class="command">runantlr</span></samp> or -<samp><span class="command">antlr</span></samp> in your path. - -</dl> - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***Downloading the source************************************************** --> -<!-- ***Configuration*********************************************************** --> -<!-- ***Building**************************************************************** --> -<!-- ***Testing***************************************************************** --> -<!-- ***Final install*********************************************************** --> -<!-- ***Binaries**************************************************************** --> -<!-- ***Specific**************************************************************** --> -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/specific.html b/gcc-4.8/INSTALL/specific.html deleted file mode 100644 index f4cbbe229..000000000 --- a/gcc-4.8/INSTALL/specific.html +++ /dev/null @@ -1,1473 +0,0 @@ -<html lang="en"> -<head> -<title>Host/Target specific installation notes for GCC</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Host/Target specific installation notes for GCC"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Host/Target specific installation notes for GCC</h1> -<a name="index-Specific-1"></a><a name="index-Specific-installation-notes-2"></a><a name="index-Target-specific-installation-3"></a><a name="index-Host-specific-installation-4"></a><a name="index-Target-specific-installation-notes-5"></a> -Please read this document carefully <em>before</em> installing the -GNU Compiler Collection on your machine. - - <p>Note that this list of install notes is <em>not</em> a list of supported -hosts or targets. Not all supported hosts and targets are listed -here, only the ones that require host-specific or target-specific -information have to. - - <ul> -<li><a href="#alpha-x-x">alpha*-*-*</a> -<li><a href="#alpha-dec-osf51">alpha*-dec-osf5.1</a> -<li><a href="#amd64-x-solaris210">amd64-*-solaris2.10</a> -<li><a href="#arm-x-eabi">arm-*-eabi</a> -<li><a href="#avr">avr</a> -<li><a href="#bfin">Blackfin</a> -<li><a href="#dos">DOS</a> -<li><a href="#x-x-freebsd">*-*-freebsd*</a> -<li><a href="#h8300-hms">h8300-hms</a> -<li><a href="#hppa-hp-hpux">hppa*-hp-hpux*</a> -<li><a href="#hppa-hp-hpux10">hppa*-hp-hpux10</a> -<li><a href="#hppa-hp-hpux11">hppa*-hp-hpux11</a> -<li><a href="#x-x-linux-gnu">*-*-linux-gnu</a> -<li><a href="#ix86-x-linux">i?86-*-linux*</a> -<li><a href="#ix86-x-solaris289">i?86-*-solaris2.9</a> -<li><a href="#ix86-x-solaris210">i?86-*-solaris2.10</a> -<li><a href="#ia64-x-linux">ia64-*-linux</a> -<li><a href="#ia64-x-hpux">ia64-*-hpux*</a> -<li><a href="#x-ibm-aix">*-ibm-aix*</a> -<li><a href="#iq2000-x-elf">iq2000-*-elf</a> -<li><a href="#lm32-x-elf">lm32-*-elf</a> -<li><a href="#lm32-x-uclinux">lm32-*-uclinux</a> -<li><a href="#m32c-x-elf">m32c-*-elf</a> -<li><a href="#m32r-x-elf">m32r-*-elf</a> -<li><a href="#m68k-x-x">m68k-*-*</a> -<li><a href="#m68k-uclinux">m68k-uclinux</a> -<li><a href="#mep-x-elf">mep-*-elf</a> -<li><a href="#microblaze-x-elf">microblaze-*-elf</a> -<li><a href="#mips-x-x">mips-*-*</a> -<li><a href="#mips-sgi-irix5">mips-sgi-irix5</a> -<li><a href="#mips-sgi-irix6">mips-sgi-irix6</a> -<li><a href="#powerpc-x-x">powerpc*-*-*</a> -<li><a href="#powerpc-x-darwin">powerpc-*-darwin*</a> -<li><a href="#powerpc-x-elf">powerpc-*-elf</a> -<li><a href="#powerpc-x-linux-gnu">powerpc*-*-linux-gnu*</a> -<li><a href="#powerpc-x-netbsd">powerpc-*-netbsd*</a> -<li><a href="#powerpc-x-eabisim">powerpc-*-eabisim</a> -<li><a href="#powerpc-x-eabi">powerpc-*-eabi</a> -<li><a href="#powerpcle-x-elf">powerpcle-*-elf</a> -<li><a href="#powerpcle-x-eabisim">powerpcle-*-eabisim</a> -<li><a href="#powerpcle-x-eabi">powerpcle-*-eabi</a> -<li><a href="#s390-x-linux">s390-*-linux*</a> -<li><a href="#s390x-x-linux">s390x-*-linux*</a> -<li><a href="#s390x-ibm-tpf">s390x-ibm-tpf*</a> -<li><a href="#x-x-solaris2">*-*-solaris2*</a> -<li><a href="#sparc-x-x">sparc*-*-*</a> -<li><a href="#sparc-sun-solaris2">sparc-sun-solaris2*</a> -<li><a href="#sparc-sun-solaris210">sparc-sun-solaris2.10</a> -<li><a href="#sparc-x-linux">sparc-*-linux*</a> -<li><a href="#sparc64-x-solaris2">sparc64-*-solaris2*</a> -<li><a href="#sparcv9-x-solaris2">sparcv9-*-solaris2*</a> -<li><a href="#c6x-x-x">c6x-*-*</a> -<li><a href="#tilegx-x-linux">tilegx-*-linux*</a> -<li><a href="#tilepro-x-linux">tilepro-*-linux*</a> -<li><a href="#x-x-vxworks">*-*-vxworks*</a> -<li><a href="#x86-64-x-x">x86_64-*-*</a> amd64-*-* -<li><a href="#x86-64-x-solaris210">x86_64-*-solaris2.1[0-9]*</a> -<li><a href="#xtensa-x-elf">xtensa*-*-elf</a> -<li><a href="#xtensa-x-linux">xtensa*-*-linux*</a> -<li><a href="#windows">Microsoft Windows</a> -<li><a href="#x-x-cygwin">*-*-cygwin</a> -<li><a href="#x-x-interix">*-*-interix</a> -<li><a href="#x-x-mingw32">*-*-mingw32</a> -<li><a href="#os2">OS/2</a> -<li><a href="#older">Older systems</a> -</ul> - - <ul> -<li><a href="#elf">all ELF targets</a> (SVR4, Solaris 2, etc.) -</ul> - - <p><!-- -------- host/target specific issues start here ---------------- --> -<hr /> - -<h3 class="heading"><a name="TOC0"></a><a name="alpha_002dx_002dx"></a>alpha*-*-*</h3> - -<p>This section contains general configuration information for all -alpha-based platforms using ELF (in particular, ignore this section for -DEC OSF/1, Digital UNIX and Tru64 UNIX). In addition to reading this -section, please read all other sections that match your target. - - <p>We require binutils 2.11.2 or newer. -Previous binutils releases had a number of problems with DWARF 2 -debugging information, not the least of which is incorrect linking of -shared libraries. - - <p><hr /> - -<h3 class="heading"><a name="TOC1"></a><a name="alpha_002ddec_002dosf51"></a>alpha*-dec-osf5.1</h3> - -<p>Systems using processors that implement the DEC Alpha architecture and -are running the DEC/Compaq/HP Unix (DEC OSF/1, Digital UNIX, or Compaq/HP -Tru64 UNIX) operating system, for example the DEC Alpha AXP systems. - - <p>Support for Tru64 UNIX V5.1 has been removed in GCC 4.8. As of GCC 4.6, -support for Tru64 UNIX V4.0 and V5.0 has been removed. As of GCC 3.2, -versions before <code>alpha*-dec-osf4</code> are no longer supported. (These -are the versions which identify themselves as DEC OSF/1.) - - <p><hr /> - -<h3 class="heading"><a name="TOC2"></a><a name="amd64_002dx_002dsolaris210"></a>amd64-*-solaris2.1[0-9]*</h3> - -<p>This is a synonym for ‘<samp><span class="samp">x86_64-*-solaris2.1[0-9]*</span></samp>’. - - <p><hr /> - -<h3 class="heading"><a name="TOC3"></a><a name="arm_002dx_002deabi"></a>arm-*-eabi</h3> - -<p>ARM-family processors. Subtargets that use the ELF object format -require GNU binutils 2.13 or newer. Such subtargets include: -<code>arm-*-netbsdelf</code>, <code>arm-*-*linux-*</code> -and <code>arm-*-rtemseabi</code>. - - <p><hr /> - -<h3 class="heading"><a name="TOC4"></a><a name="avr"></a>avr</h3> - -<p>ATMEL AVR-family micro controllers. These are used in embedded -applications. There are no standard Unix configurations. -See “AVR Options” in the main manual -for the list of supported MCU types. - - <p>Use ‘<samp><span class="samp">configure --target=avr --enable-languages="c"</span></samp>’ to configure GCC. - - <p>Further installation notes and other useful information about AVR tools -can also be obtained from: - - <ul> -<li><a href="http://www.nongnu.org/avr/">http://www.nongnu.org/avr/</a> -<li><a href="http://www.amelek.gda.pl/avr/">http://www.amelek.gda.pl/avr/</a> -</ul> - - <p>We <em>strongly</em> recommend using binutils 2.13 or newer. - - <p>The following error: -<pre class="smallexample"> Error: register required -</pre> - <p>indicates that you should upgrade to a newer version of the binutils. - - <p><hr /> - -<h3 class="heading"><a name="TOC5"></a><a name="bfin"></a>Blackfin</h3> - -<p>The Blackfin processor, an Analog Devices DSP. -See “Blackfin Options” in the main manual - - <p>More information, and a version of binutils with support for this processor, -is available at <a href="http://blackfin.uclinux.org">http://blackfin.uclinux.org</a> - - <p><hr /> - -<h3 class="heading"><a name="TOC6"></a><a name="cr16"></a>CR16</h3> - -<p>The CR16 CompactRISC architecture is a 16-bit architecture. This architecture is -used in embedded applications. - - <p>See “CR16 Options” in the main manual for a list of CR16-specific options. - - <p>Use ‘<samp><span class="samp">configure --target=cr16-elf --enable-languages=c,c++</span></samp>’ to configure -GCC for building a CR16 elf cross-compiler. - - <p>Use ‘<samp><span class="samp">configure --target=cr16-uclinux --enable-languages=c,c++</span></samp>’ to configure -GCC for building a CR16 uclinux cross-compiler. - - <p><hr /> - -<h3 class="heading"><a name="TOC7"></a><a name="cris"></a>CRIS</h3> - -<p>CRIS is the CPU architecture in Axis Communications ETRAX system-on-a-chip -series. These are used in embedded applications. - - <p>See “CRIS Options” in the main manual -for a list of CRIS-specific options. - - <p>There are a few different CRIS targets: - <dl> -<dt><code>cris-axis-elf</code><dd>Mainly for monolithic embedded systems. Includes a multilib for the -‘<samp><span class="samp">v10</span></samp>’ core used in ‘<samp><span class="samp">ETRAX 100 LX</span></samp>’. -<br><dt><code>cris-axis-linux-gnu</code><dd>A GNU/Linux port for the CRIS architecture, currently targeting -‘<samp><span class="samp">ETRAX 100 LX</span></samp>’ by default. -</dl> - - <p>For <code>cris-axis-elf</code> you need binutils 2.11 -or newer. For <code>cris-axis-linux-gnu</code> you need binutils 2.12 or newer. - - <p>Pre-packaged tools can be obtained from -<a href="ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/">ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/</a>. More -information about this platform is available at -<a href="http://developer.axis.com/">http://developer.axis.com/</a>. - - <p><hr /> - -<h3 class="heading"><a name="TOC8"></a><a name="dos"></a>DOS</h3> - -<p>Please have a look at the <a href="binaries.html">binaries page</a>. - - <p>You cannot install GCC by itself on MSDOS; it will not compile under -any MSDOS compiler except itself. You need to get the complete -compilation package DJGPP, which includes binaries as well as sources, -and includes all the necessary compilation tools and libraries. - - <p><hr /> - -<h3 class="heading"><a name="TOC9"></a><a name="epiphany_002dx_002delf"></a>epiphany-*-elf</h3> - -<p>Adapteva Epiphany. -This configuration is intended for embedded systems. - - <p><hr /> - -<h3 class="heading"><a name="TOC10"></a><a name="x_002dx_002dfreebsd"></a>*-*-freebsd*</h3> - -<p>Support for FreeBSD 1 was discontinued in GCC 3.2. Support for -FreeBSD 2 (and any mutant a.out variants of FreeBSD 3) was -discontinued in GCC 4.0. - - <p>In order to better utilize FreeBSD base system functionality and match -the configuration of the system compiler, GCC 4.5 and above as well as -GCC 4.4 past 2010-06-20 leverage SSP support in libc (which is present -on FreeBSD 7 or later) and the use of <code>__cxa_atexit</code> by default -(on FreeBSD 6 or later). The use of <code>dl_iterate_phdr</code> inside -<samp><span class="file">libgcc_s.so.1</span></samp> and boehm-gc (on FreeBSD 7 or later) is enabled -by GCC 4.5 and above. - - <p>We support FreeBSD using the ELF file format with DWARF 2 debugging -for all CPU architectures. You may use <samp><span class="option">-gstabs</span></samp> instead of -<samp><span class="option">-g</span></samp>, if you really want the old debugging format. There are -no known issues with mixing object files and libraries with different -debugging formats. Otherwise, this release of GCC should now match -more of the configuration used in the stock FreeBSD configuration of -GCC. In particular, <samp><span class="option">--enable-threads</span></samp> is now configured by -default. However, as a general user, do not attempt to replace the -system compiler with this release. Known to bootstrap and check with -good results on FreeBSD 7.2-STABLE. In the past, known to bootstrap -and check with good results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3, 4.4, -4.5, 4.8, 4.9 and 5-CURRENT. - - <p>The version of binutils installed in <samp><span class="file">/usr/bin</span></samp> probably works -with this release of GCC. Bootstrapping against the latest GNU -binutils and/or the version found in <samp><span class="file">/usr/ports/devel/binutils</span></samp> has -been known to enable additional features and improve overall testsuite -results. However, it is currently known that boehm-gc (which itself -is required for java) may not configure properly on FreeBSD prior to -the FreeBSD 7.0 release with GNU binutils after 2.16.1. - - <p><hr /> - -<h3 class="heading"><a name="TOC11"></a><a name="h8300_002dhms"></a>h8300-hms</h3> - -<p>Renesas H8/300 series of processors. - - <p>Please have a look at the <a href="binaries.html">binaries page</a>. - - <p>The calling convention and structure layout has changed in release 2.6. -All code must be recompiled. The calling convention now passes the -first three arguments in function calls in registers. Structures are no -longer a multiple of 2 bytes. - - <p><hr /> - -<h3 class="heading"><a name="TOC12"></a><a name="hppa_002dhp_002dhpux"></a>hppa*-hp-hpux*</h3> - -<p>Support for HP-UX version 9 and older was discontinued in GCC 3.4. - - <p>We require using gas/binutils on all hppa platforms. Version 2.19 or -later is recommended. - - <p>It may be helpful to configure GCC with the -<a href="./configure.html#with-gnu-as"><samp><span class="option">--with-gnu-as</span></samp></a> and -<samp><span class="option">--with-as=...</span></samp> options to ensure that GCC can find GAS. - - <p>The HP assembler should not be used with GCC. It is rarely tested and may -not work. It shouldn't be used with any languages other than C due to its -many limitations. - - <p>Specifically, <samp><span class="option">-g</span></samp> does not work (HP-UX uses a peculiar debugging -format which GCC does not know about). It also inserts timestamps -into each object file it creates, causing the 3-stage comparison test to -fail during a bootstrap. You should be able to continue by saying -‘<samp><span class="samp">make all-host all-target</span></samp>’ after getting the failure from ‘<samp><span class="samp">make</span></samp>’. - - <p>Various GCC features are not supported. For example, it does not support weak -symbols or alias definitions. As a result, explicit template instantiations -are required when using C++. This makes it difficult if not impossible to -build many C++ applications. - - <p>There are two default scheduling models for instructions. These are -PROCESSOR_7100LC and PROCESSOR_8000. They are selected from the pa-risc -architecture specified for the target machine when configuring. -PROCESSOR_8000 is the default. PROCESSOR_7100LC is selected when -the target is a ‘<samp><span class="samp">hppa1*</span></samp>’ machine. - - <p>The PROCESSOR_8000 model is not well suited to older processors. Thus, -it is important to completely specify the machine architecture when -configuring if you want a model other than PROCESSOR_8000. The macro -TARGET_SCHED_DEFAULT can be defined in BOOT_CFLAGS if a different -default scheduling model is desired. - - <p>As of GCC 4.0, GCC uses the UNIX 95 namespace for HP-UX 10.10 -through 11.00, and the UNIX 98 namespace for HP-UX 11.11 and later. -This namespace change might cause problems when bootstrapping with -an earlier version of GCC or the HP compiler as essentially the same -namespace is required for an entire build. This problem can be avoided -in a number of ways. With HP cc, <samp><span class="env">UNIX_STD</span></samp> can be set to ‘<samp><span class="samp">95</span></samp>’ -or ‘<samp><span class="samp">98</span></samp>’. Another way is to add an appropriate set of predefines -to <samp><span class="env">CC</span></samp>. The description for the <samp><span class="option">munix=</span></samp> option contains -a list of the predefines used with each standard. - - <p>More specific information to ‘<samp><span class="samp">hppa*-hp-hpux*</span></samp>’ targets follows. - - <p><hr /> - -<h3 class="heading"><a name="TOC13"></a><a name="hppa_002dhp_002dhpux10"></a>hppa*-hp-hpux10</h3> - -<p>For hpux10.20, we <em>highly</em> recommend you pick up the latest sed patch -<code>PHCO_19798</code> from HP. - - <p>The C++ ABI has changed incompatibly in GCC 4.0. COMDAT subspaces are -used for one-only code and data. This resolves many of the previous -problems in using C++ on this target. However, the ABI is not compatible -with the one implemented under HP-UX 11 using secondary definitions. - - <p><hr /> - -<h3 class="heading"><a name="TOC14"></a><a name="hppa_002dhp_002dhpux11"></a>hppa*-hp-hpux11</h3> - -<p>GCC 3.0 and up support HP-UX 11. GCC 2.95.x is not supported and cannot -be used to compile GCC 3.0 and up. - - <p>The libffi and libjava libraries haven't been ported to 64-bit HP-UX and don't build. - - <p>Refer to <a href="binaries.html">binaries</a> for information about obtaining -precompiled GCC binaries for HP-UX. Precompiled binaries must be obtained -to build the Ada language as it can't be bootstrapped using C. Ada is -only available for the 32-bit PA-RISC runtime. - - <p>Starting with GCC 3.4 an ISO C compiler is required to bootstrap. The -bundled compiler supports only traditional C; you will need either HP's -unbundled compiler, or a binary distribution of GCC. - - <p>It is possible to build GCC 3.3 starting with the bundled HP compiler, -but the process requires several steps. GCC 3.3 can then be used to -build later versions. The fastjar program contains ISO C code and -can't be built with the HP bundled compiler. This problem can be -avoided by not building the Java language. For example, use the -<samp><span class="option">--enable-languages="c,c++,f77,objc"</span></samp> option in your configure -command. - - <p>There are several possible approaches to building the distribution. -Binutils can be built first using the HP tools. Then, the GCC -distribution can be built. The second approach is to build GCC -first using the HP tools, then build binutils, then rebuild GCC. -There have been problems with various binary distributions, so it -is best not to start from a binary distribution. - - <p>On 64-bit capable systems, there are two distinct targets. Different -installation prefixes must be used if both are to be installed on -the same system. The ‘<samp><span class="samp">hppa[1-2]*-hp-hpux11*</span></samp>’ target generates code -for the 32-bit PA-RISC runtime architecture and uses the HP linker. -The ‘<samp><span class="samp">hppa64-hp-hpux11*</span></samp>’ target generates 64-bit code for the -PA-RISC 2.0 architecture. - - <p>The script config.guess now selects the target type based on the compiler -detected during configuration. You must define <samp><span class="env">PATH</span></samp> or <samp><span class="env">CC</span></samp> so -that configure finds an appropriate compiler for the initial bootstrap. -When <samp><span class="env">CC</span></samp> is used, the definition should contain the options that are -needed whenever <samp><span class="env">CC</span></samp> is used. - - <p>Specifically, options that determine the runtime architecture must be -in <samp><span class="env">CC</span></samp> to correctly select the target for the build. It is also -convenient to place many other compiler options in <samp><span class="env">CC</span></samp>. For example, -<samp><span class="env">CC="cc -Ac +DA2.0W -Wp,-H16376 -D_CLASSIC_TYPES -D_HPUX_SOURCE"</span></samp> -can be used to bootstrap the GCC 3.3 branch with the HP compiler in -64-bit K&R/bundled mode. The <samp><span class="option">+DA2.0W</span></samp> option will result in -the automatic selection of the ‘<samp><span class="samp">hppa64-hp-hpux11*</span></samp>’ target. The -macro definition table of cpp needs to be increased for a successful -build with the HP compiler. _CLASSIC_TYPES and _HPUX_SOURCE need to -be defined when building with the bundled compiler, or when using the -<samp><span class="option">-Ac</span></samp> option. These defines aren't necessary with <samp><span class="option">-Ae</span></samp>. - - <p>It is best to explicitly configure the ‘<samp><span class="samp">hppa64-hp-hpux11*</span></samp>’ target -with the <samp><span class="option">--with-ld=...</span></samp> option. This overrides the standard -search for ld. The two linkers supported on this target require different -commands. The default linker is determined during configuration. As a -result, it's not possible to switch linkers in the middle of a GCC build. -This has been reported to sometimes occur in unified builds of binutils -and GCC. - - <p>A recent linker patch must be installed for the correct operation of -GCC 3.3 and later. <code>PHSS_26559</code> and <code>PHSS_24304</code> are the -oldest linker patches that are known to work. They are for HP-UX -11.00 and 11.11, respectively. <code>PHSS_24303</code>, the companion to -<code>PHSS_24304</code>, might be usable but it hasn't been tested. These -patches have been superseded. Consult the HP patch database to obtain -the currently recommended linker patch for your system. - - <p>The patches are necessary for the support of weak symbols on the -32-bit port, and for the running of initializers and finalizers. Weak -symbols are implemented using SOM secondary definition symbols. Prior -to HP-UX 11, there are bugs in the linker support for secondary symbols. -The patches correct a problem of linker core dumps creating shared -libraries containing secondary symbols, as well as various other -linking issues involving secondary symbols. - - <p>GCC 3.3 uses the ELF DT_INIT_ARRAY and DT_FINI_ARRAY capabilities to -run initializers and finalizers on the 64-bit port. The 32-bit port -uses the linker <samp><span class="option">+init</span></samp> and <samp><span class="option">+fini</span></samp> options for the same -purpose. The patches correct various problems with the +init/+fini -options, including program core dumps. Binutils 2.14 corrects a -problem on the 64-bit port resulting from HP's non-standard use of -the .init and .fini sections for array initializers and finalizers. - - <p>Although the HP and GNU linkers are both supported for the -‘<samp><span class="samp">hppa64-hp-hpux11*</span></samp>’ target, it is strongly recommended that the -HP linker be used for link editing on this target. - - <p>At this time, the GNU linker does not support the creation of long -branch stubs. As a result, it can't successfully link binaries -containing branch offsets larger than 8 megabytes. In addition, -there are problems linking shared libraries, linking executables -with <samp><span class="option">-static</span></samp>, and with dwarf2 unwind and exception support. -It also doesn't provide stubs for internal calls to global functions -in shared libraries, so these calls can't be overloaded. - - <p>The HP dynamic loader does not support GNU symbol versioning, so symbol -versioning is not supported. It may be necessary to disable symbol -versioning with <samp><span class="option">--disable-symvers</span></samp> when using GNU ld. - - <p>POSIX threads are the default. The optional DCE thread library is not -supported, so <samp><span class="option">--enable-threads=dce</span></samp> does not work. - - <p><hr /> - -<h3 class="heading"><a name="TOC15"></a><a name="x_002dx_002dlinux_002dgnu"></a>*-*-linux-gnu</h3> - -<p>Versions of libstdc++-v3 starting with 3.2.1 require bug fixes present -in glibc 2.2.5 and later. More information is available in the -libstdc++-v3 documentation. - - <p><hr /> - -<h3 class="heading"><a name="TOC16"></a><a name="ix86_002dx_002dlinux"></a>i?86-*-linux*</h3> - -<p>As of GCC 3.3, binutils 2.13.1 or later is required for this platform. -See <a href="http://gcc.gnu.org/PR10877">bug 10877</a> for more information. - - <p>If you receive Signal 11 errors when building on GNU/Linux, then it is -possible you have a hardware problem. Further information on this can be -found on <a href="http://www.bitwizard.nl/sig11/">www.bitwizard.nl</a>. - - <p><hr /> - -<h3 class="heading"><a name="TOC17"></a><a name="ix86_002dx_002dsolaris29"></a>i?86-*-solaris2.9</h3> - -<p>The Sun assembler in Solaris 9 has several bugs and limitations. -While GCC works around them, several features are missing, so it is -<!-- FIXME: which ones? --> -recommended to use the GNU assembler instead. There is no bundled -version, but the current version, from GNU binutils 2.22, is known to -work. - - <p>Solaris 2/x86 doesn't support the execution of SSE/SSE2 instructions -before Solaris 9 4/04, even if the CPU supports them. Programs will -receive <code>SIGILL</code> if they try. The fix is available both in -Solaris 9 Update 6 and kernel patch 112234-12 or newer. To -avoid this problem, -<samp><span class="option">-march</span></samp> defaults to ‘<samp><span class="samp">pentiumpro</span></samp>’ on Solaris 9. If -you have the patch installed, you can configure GCC with an appropriate -<samp><span class="option">--with-arch</span></samp> option, but need GNU <samp><span class="command">as</span></samp> for SSE2 support. - - <p><hr /> - -<h3 class="heading"><a name="TOC18"></a><a name="ix86_002dx_002dsolaris210"></a>i?86-*-solaris2.10</h3> - -<p>Use this for Solaris 10 or later on x86 and x86-64 systems. Starting -with GCC 4.7, there is also a 64-bit ‘<samp><span class="samp">amd64-*-solaris2.1[0-9]*</span></samp>’ or -‘<samp><span class="samp">x86_64-*-solaris2.1[0-9]*</span></samp>’ configuration that corresponds to -‘<samp><span class="samp">sparcv9-sun-solaris2*</span></samp>’. - - <p>It is recommended that you configure GCC to use the GNU assembler, in -<samp><span class="file">/usr/sfw/bin/gas</span></samp>. The versions included in Solaris 10, from GNU -binutils 2.15, and Solaris 11, from GNU binutils 2.19, work fine, -although the current version, from GNU binutils -2.22, is known to work, too. Recent versions of the Sun assembler in -<samp><span class="file">/usr/ccs/bin/as</span></samp> work almost as well, though. -<!-- FIXME: as patch requirements? --> - - <p>For linking, the Sun linker, is preferred. If you want to use the GNU -linker instead, which is available in <samp><span class="file">/usr/sfw/bin/gld</span></samp>, note that -due to a packaging bug the version in Solaris 10, from GNU binutils -2.15, cannot be used, while the version in Solaris 11, from GNU binutils -2.19, works, as does the latest version, from GNU binutils 2.22. - - <p>To use GNU <samp><span class="command">as</span></samp>, configure with the options -<samp><span class="option">--with-gnu-as --with-as=/usr/sfw/bin/gas</span></samp>. It may be necessary -to configure with <samp><span class="option">--without-gnu-ld --with-ld=/usr/ccs/bin/ld</span></samp> to -guarantee use of Sun <samp><span class="command">ld</span></samp>. -<!-- FIXME: why -without-gnu-ld -with-ld? --> - - <p><hr /> - -<h3 class="heading"><a name="TOC19"></a><a name="ia64_002dx_002dlinux"></a>ia64-*-linux</h3> - -<p>IA-64 processor (also known as IPF, or Itanium Processor Family) -running GNU/Linux. - - <p>If you are using the installed system libunwind library with -<samp><span class="option">--with-system-libunwind</span></samp>, then you must use libunwind 0.98 or -later. - - <p>None of the following versions of GCC has an ABI that is compatible -with any of the other versions in this list, with the exception that -Red Hat 2.96 and Trillian 000171 are compatible with each other: -3.1, 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717. -This primarily affects C++ programs and programs that create shared libraries. -GCC 3.1 or later is recommended for compiling linux, the kernel. -As of version 3.1 GCC is believed to be fully ABI compliant, and hence no -more major ABI changes are expected. - - <p><hr /> - -<h3 class="heading"><a name="TOC20"></a><a name="ia64_002dx_002dhpux"></a>ia64-*-hpux*</h3> - -<p>Building GCC on this target requires the GNU Assembler. The bundled HP -assembler will not work. To prevent GCC from using the wrong assembler, -the option <samp><span class="option">--with-gnu-as</span></samp> may be necessary. - - <p>The GCC libunwind library has not been ported to HPUX. This means that for -GCC versions 3.2.3 and earlier, <samp><span class="option">--enable-libunwind-exceptions</span></samp> -is required to build GCC. For GCC 3.3 and later, this is the default. -For gcc 3.4.3 and later, <samp><span class="option">--enable-libunwind-exceptions</span></samp> is -removed and the system libunwind library will always be used. - - <p><hr /> -<!-- rs6000-ibm-aix*, powerpc-ibm-aix* --> - -<h3 class="heading"><a name="TOC21"></a><a name="x_002dibm_002daix"></a>*-ibm-aix*</h3> - -<p>Support for AIX version 3 and older was discontinued in GCC 3.4. -Support for AIX version 4.2 and older was discontinued in GCC 4.5. - - <p>“out of memory” bootstrap failures may indicate a problem with -process resource limits (ulimit). Hard limits are configured in the -<samp><span class="file">/etc/security/limits</span></samp> system configuration file. - - <p>GCC can bootstrap with recent versions of IBM XLC, but bootstrapping -with an earlier release of GCC is recommended. Bootstrapping with XLC -requires a larger data segment, which can be enabled through the -<var>LDR_CNTRL</var> environment variable, e.g., - -<pre class="smallexample"> % LDR_CNTRL=MAXDATA=0x50000000 - % export LDR_CNTRL -</pre> - <p>One can start with a pre-compiled version of GCC to build from -sources. One may delete GCC's “fixed” header files when starting -with a version of GCC built for an earlier release of AIX. - - <p>To speed up the configuration phases of bootstrapping and installing GCC, -one may use GNU Bash instead of AIX <samp><span class="command">/bin/sh</span></samp>, e.g., - -<pre class="smallexample"> % CONFIG_SHELL=/opt/freeware/bin/bash - % export CONFIG_SHELL -</pre> - <p>and then proceed as described in <a href="build.html">the build instructions</a>, where we strongly recommend specifying an absolute path -to invoke <var>srcdir</var>/configure. - - <p>Because GCC on AIX is built as a 32-bit executable by default, -(although it can generate 64-bit programs) the GMP and MPFR libraries -required by gfortran must be 32-bit libraries. Building GMP and MPFR -as static archive libraries works better than shared libraries. - - <p>Errors involving <code>alloca</code> when building GCC generally are due -to an incorrect definition of <code>CC</code> in the Makefile or mixing files -compiled with the native C compiler and GCC. During the stage1 phase of -the build, the native AIX compiler <strong>must</strong> be invoked as <samp><span class="command">cc</span></samp> -(not <samp><span class="command">xlc</span></samp>). Once <samp><span class="command">configure</span></samp> has been informed of -<samp><span class="command">xlc</span></samp>, one needs to use ‘<samp><span class="samp">make distclean</span></samp>’ to remove the -configure cache files and ensure that <samp><span class="env">CC</span></samp> environment variable -does not provide a definition that will confuse <samp><span class="command">configure</span></samp>. -If this error occurs during stage2 or later, then the problem most likely -is the version of Make (see above). - - <p>The native <samp><span class="command">as</span></samp> and <samp><span class="command">ld</span></samp> are recommended for -bootstrapping on AIX. The GNU Assembler, GNU Linker, and GNU -Binutils version 2.20 is the minimum level that supports bootstrap on -AIX 5. The GNU Assembler has not been updated to support AIX 6 or -AIX 7. The native AIX tools do interoperate with GCC. - - <p>AIX 5.3 TL10, AIX 6.1 TL05 and AIX 7.1 TL00 introduced an AIX -assembler change that sometimes produces corrupt assembly files -causing AIX linker errors. The bug breaks GCC bootstrap on AIX and -can cause compilation failures with existing GCC installations. An -AIX iFix for AIX 5.3 is available (APAR IZ98385 for AIX 5.3 TL10, APAR -IZ98477 for AIX 5.3 TL11 and IZ98134 for AIX 5.3 TL12). AIX 5.3 TL11 SP8, -AIX 5.3 TL12 SP5, AIX 6.1 TL04 SP11, AIX 6.1 TL05 SP7, AIX 6.1 TL06 SP6, -AIX 6.1 TL07 and AIX 7.1 TL01 should include the fix. - - <p>Building <samp><span class="file">libstdc++.a</span></samp> requires a fix for an AIX Assembler bug -APAR IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1). It also requires a -fix for another AIX Assembler bug and a co-dependent AIX Archiver fix -referenced as APAR IY53606 (AIX 5.2) or as APAR IY54774 (AIX 5.1) - - <p>‘<samp><span class="samp">libstdc++</span></samp>’ in GCC 3.4 increments the major version number of the -shared object and GCC installation places the <samp><span class="file">libstdc++.a</span></samp> -shared library in a common location which will overwrite the and GCC -3.3 version of the shared library. Applications either need to be -re-linked against the new shared library or the GCC 3.1 and GCC 3.3 -versions of the ‘<samp><span class="samp">libstdc++</span></samp>’ shared object needs to be available -to the AIX runtime loader. The GCC 3.1 ‘<samp><span class="samp">libstdc++.so.4</span></samp>’, if -present, and GCC 3.3 ‘<samp><span class="samp">libstdc++.so.5</span></samp>’ shared objects can be -installed for runtime dynamic loading using the following steps to set -the ‘<samp><span class="samp">F_LOADONLY</span></samp>’ flag in the shared object for <em>each</em> -multilib <samp><span class="file">libstdc++.a</span></samp> installed: - - <p>Extract the shared objects from the currently installed -<samp><span class="file">libstdc++.a</span></samp> archive: -<pre class="smallexample"> % ar -x libstdc++.a libstdc++.so.4 libstdc++.so.5 -</pre> - <p>Enable the ‘<samp><span class="samp">F_LOADONLY</span></samp>’ flag so that the shared object will be -available for runtime dynamic loading, but not linking: -<pre class="smallexample"> % strip -e libstdc++.so.4 libstdc++.so.5 -</pre> - <p>Archive the runtime-only shared object in the GCC 3.4 -<samp><span class="file">libstdc++.a</span></samp> archive: -<pre class="smallexample"> % ar -q libstdc++.a libstdc++.so.4 libstdc++.so.5 -</pre> - <p>Linking executables and shared libraries may produce warnings of -duplicate symbols. The assembly files generated by GCC for AIX always -have included multiple symbol definitions for certain global variable -and function declarations in the original program. The warnings should -not prevent the linker from producing a correct library or runnable -executable. - - <p>AIX 4.3 utilizes a “large format” archive to support both 32-bit and -64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1 -to parse archive libraries did not handle the new format correctly. -These routines are used by GCC and result in error messages during -linking such as “not a COFF file”. The version of the routines shipped -with AIX 4.3.1 should work for a 32-bit environment. The <samp><span class="option">-g</span></samp> -option of the archive command may be used to create archives of 32-bit -objects using the original “small format”. A correct version of the -routines is shipped with AIX 4.3.2 and above. - - <p>Some versions of the AIX binder (linker) can fail with a relocation -overflow severe error when the <samp><span class="option">-bbigtoc</span></samp> option is used to link -GCC-produced object files into an executable that overflows the TOC. A fix -for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is -available from IBM Customer Support and from its -<a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a> -website as PTF U455193. - - <p>The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core -with a segmentation fault when invoked by any version of GCC. A fix for -APAR IX87327 is available from IBM Customer Support and from its -<a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a> -website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above. - - <p>The initial assembler shipped with AIX 4.3.0 generates incorrect object -files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS -TO ASSEMBLE/BIND) is available from IBM Customer Support and from its -<a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a> -website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above. - - <p>AIX provides National Language Support (NLS). Compilers and assemblers -use NLS to support locale-specific representations of various data -formats including floating-point numbers (e.g., ‘<samp><span class="samp">.</span></samp>’ vs ‘<samp><span class="samp">,</span></samp>’ for -separating decimal fractions). There have been problems reported where -GCC does not produce the same floating-point formats that the assembler -expects. If one encounters this problem, set the <samp><span class="env">LANG</span></samp> -environment variable to ‘<samp><span class="samp">C</span></samp>’ or ‘<samp><span class="samp">En_US</span></samp>’. - - <p>A default can be specified with the <samp><span class="option">-mcpu=</span><var>cpu_type</var></samp> -switch and using the configure option <samp><span class="option">--with-cpu-</span><var>cpu_type</var></samp>. - - <p><hr /> - -<h3 class="heading"><a name="TOC22"></a><a name="iq2000_002dx_002delf"></a>iq2000-*-elf</h3> - -<p>Vitesse IQ2000 processors. These are used in embedded -applications. There are no standard Unix configurations. - - <p><hr /> - -<h3 class="heading"><a name="TOC23"></a><a name="lm32_002dx_002delf"></a>lm32-*-elf</h3> - -<p>Lattice Mico32 processor. -This configuration is intended for embedded systems. - - <p><hr /> - -<h3 class="heading"><a name="TOC24"></a><a name="lm32_002dx_002duclinux"></a>lm32-*-uclinux</h3> - -<p>Lattice Mico32 processor. -This configuration is intended for embedded systems running uClinux. - - <p><hr /> - -<h3 class="heading"><a name="TOC25"></a><a name="m32c_002dx_002delf"></a>m32c-*-elf</h3> - -<p>Renesas M32C processor. -This configuration is intended for embedded systems. - - <p><hr /> - -<h3 class="heading"><a name="TOC26"></a><a name="m32r_002dx_002delf"></a>m32r-*-elf</h3> - -<p>Renesas M32R processor. -This configuration is intended for embedded systems. - - <p><hr /> - -<h3 class="heading"><a name="TOC27"></a><a name="m68k_002dx_002dx"></a>m68k-*-*</h3> - -<p>By default, -‘<samp><span class="samp">m68k-*-elf*</span></samp>’, ‘<samp><span class="samp">m68k-*-rtems</span></samp>’, ‘<samp><span class="samp">m68k-*-uclinux</span></samp>’ and -‘<samp><span class="samp">m68k-*-linux</span></samp>’ -build libraries for both M680x0 and ColdFire processors. If you only -need the M680x0 libraries, you can omit the ColdFire ones by passing -<samp><span class="option">--with-arch=m68k</span></samp> to <samp><span class="command">configure</span></samp>. Alternatively, you -can omit the M680x0 libraries by passing <samp><span class="option">--with-arch=cf</span></samp> to -<samp><span class="command">configure</span></samp>. These targets default to 5206 or 5475 code as -appropriate for the target system when -configured with <samp><span class="option">--with-arch=cf</span></samp> and 68020 code otherwise. - - <p>The ‘<samp><span class="samp">m68k-*-netbsd</span></samp>’ and -‘<samp><span class="samp">m68k-*-openbsd</span></samp>’ targets also support the <samp><span class="option">--with-arch</span></samp> -option. They will generate ColdFire CFV4e code when configured with -<samp><span class="option">--with-arch=cf</span></samp> and 68020 code otherwise. - - <p>You can override the default processors listed above by configuring -with <samp><span class="option">--with-cpu=</span><var>target</var></samp>. This <var>target</var> can either -be a <samp><span class="option">-mcpu</span></samp> argument or one of the following values: -‘<samp><span class="samp">m68000</span></samp>’, ‘<samp><span class="samp">m68010</span></samp>’, ‘<samp><span class="samp">m68020</span></samp>’, ‘<samp><span class="samp">m68030</span></samp>’, -‘<samp><span class="samp">m68040</span></samp>’, ‘<samp><span class="samp">m68060</span></samp>’, ‘<samp><span class="samp">m68020-40</span></samp>’ and ‘<samp><span class="samp">m68020-60</span></samp>’. - - <p>GCC requires at least binutils version 2.17 on these targets. - - <p><hr /> - -<h3 class="heading"><a name="TOC28"></a><a name="m68k_002dx_002duclinux"></a>m68k-*-uclinux</h3> - -<p>GCC 4.3 changed the uClinux configuration so that it uses the -‘<samp><span class="samp">m68k-linux-gnu</span></samp>’ ABI rather than the ‘<samp><span class="samp">m68k-elf</span></samp>’ ABI. -It also added improved support for C++ and flat shared libraries, -both of which were ABI changes. - - <p><hr /> - -<h3 class="heading"><a name="TOC29"></a><a name="mep_002dx_002delf"></a>mep-*-elf</h3> - -<p>Toshiba Media embedded Processor. -This configuration is intended for embedded systems. - - <p><hr /> - -<h3 class="heading"><a name="TOC30"></a><a name="microblaze_002dx_002delf"></a>microblaze-*-elf</h3> - -<p>Xilinx MicroBlaze processor. -This configuration is intended for embedded systems. - - <p><hr /> - -<h3 class="heading"><a name="TOC31"></a><a name="mips_002dx_002dx"></a>mips-*-*</h3> - -<p>If on a MIPS system you get an error message saying “does not have gp -sections for all it's [sic] sectons [sic]”, don't worry about it. This -happens whenever you use GAS with the MIPS linker, but there is not -really anything wrong, and it is okay to use the output file. You can -stop such warnings by installing the GNU linker. - - <p>It would be nice to extend GAS to produce the gp tables, but they are -optional, and there should not be a warning about their absence. - - <p>The libstdc++ atomic locking routines for MIPS targets requires MIPS II -and later. A patch went in just after the GCC 3.3 release to -make ‘<samp><span class="samp">mips*-*-*</span></samp>’ use the generic implementation instead. You can also -configure for ‘<samp><span class="samp">mipsel-elf</span></samp>’ as a workaround. The -‘<samp><span class="samp">mips*-*-linux*</span></samp>’ target continues to use the MIPS II routines. More -work on this is expected in future releases. - -<!-- If you make -with-llsc the default for another target, please also --> -<!-- update the description of the -with-llsc option. --> - <p>The built-in <code>__sync_*</code> functions are available on MIPS II and -later systems and others that support the ‘<samp><span class="samp">ll</span></samp>’, ‘<samp><span class="samp">sc</span></samp>’ and -‘<samp><span class="samp">sync</span></samp>’ instructions. This can be overridden by passing -<samp><span class="option">--with-llsc</span></samp> or <samp><span class="option">--without-llsc</span></samp> when configuring GCC. -Since the Linux kernel emulates these instructions if they are -missing, the default for ‘<samp><span class="samp">mips*-*-linux*</span></samp>’ targets is -<samp><span class="option">--with-llsc</span></samp>. The <samp><span class="option">--with-llsc</span></samp> and -<samp><span class="option">--without-llsc</span></samp> configure options may be overridden at compile -time by passing the <samp><span class="option">-mllsc</span></samp> or <samp><span class="option">-mno-llsc</span></samp> options to -the compiler. - - <p>MIPS systems check for division by zero (unless -<samp><span class="option">-mno-check-zero-division</span></samp> is passed to the compiler) by -generating either a conditional trap or a break instruction. Using -trap results in smaller code, but is only supported on MIPS II and -later. Also, some versions of the Linux kernel have a bug that -prevents trap from generating the proper signal (<code>SIGFPE</code>). To enable -the use of break, use the <samp><span class="option">--with-divide=breaks</span></samp> -<samp><span class="command">configure</span></samp> option when configuring GCC. The default is to -use traps on systems that support them. - - <p>The assembler from GNU binutils 2.17 and earlier has a bug in the way -it sorts relocations for REL targets (o32, o64, EABI). This can cause -bad code to be generated for simple C++ programs. Also the linker -from GNU binutils versions prior to 2.17 has a bug which causes the -runtime linker stubs in very large programs, like <samp><span class="file">libgcj.so</span></samp>, to -be incorrectly generated. GNU Binutils 2.18 and later (and snapshots -made after Nov. 9, 2006) should be free from both of these problems. - - <p><hr /> - -<h3 class="heading"><a name="TOC32"></a><a name="mips_002dsgi_002dirix5"></a>mips-sgi-irix5</h3> - -<p>Support for IRIX 5 has been removed in GCC 4.6. - - <p><hr /> - -<h3 class="heading"><a name="TOC33"></a><a name="mips_002dsgi_002dirix6"></a>mips-sgi-irix6</h3> - -<p>Support for IRIX 6.5 has been removed in GCC 4.8. Support for IRIX 6 -releases before 6.5 has been removed in GCC 4.6, as well as support for -the O32 ABI. - - <p><hr /> - -<h3 class="heading"><a name="TOC34"></a><a name="moxie_002dx_002delf"></a>moxie-*-elf</h3> - -<p>The moxie processor. - - <p><hr /> - -<h3 class="heading"><a name="TOC35"></a><a name="powerpc_002dx_002dx"></a>powerpc-*-*</h3> - -<p>You can specify a default version for the <samp><span class="option">-mcpu=</span><var>cpu_type</var></samp> -switch by using the configure option <samp><span class="option">--with-cpu-</span><var>cpu_type</var></samp>. - - <p>You will need -<a href="ftp://ftp.kernel.org/pub/linux/devel/binutils">binutils 2.15</a> -or newer for a working GCC. - - <p><hr /> - -<h3 class="heading"><a name="TOC36"></a><a name="powerpc_002dx_002ddarwin"></a>powerpc-*-darwin*</h3> - -<p>PowerPC running Darwin (Mac OS X kernel). - - <p>Pre-installed versions of Mac OS X may not include any developer tools, -meaning that you will not be able to build GCC from source. Tool -binaries are available at -<a href="http://opensource.apple.com/">http://opensource.apple.com/</a>. - - <p>This version of GCC requires at least cctools-590.36. The -cctools-590.36 package referenced from -<a href="http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html">http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html</a> will not work -on systems older than 10.3.9 (aka darwin7.9.0). - - <p><hr /> - -<h3 class="heading"><a name="TOC37"></a><a name="powerpc_002dx_002delf"></a>powerpc-*-elf</h3> - -<p>PowerPC system in big endian mode, running System V.4. - - <p><hr /> - -<h3 class="heading"><a name="TOC38"></a><a name="powerpc_002dx_002dlinux_002dgnu"></a>powerpc*-*-linux-gnu*</h3> - -<p>PowerPC system in big endian mode running Linux. - - <p><hr /> - -<h3 class="heading"><a name="TOC39"></a><a name="powerpc_002dx_002dnetbsd"></a>powerpc-*-netbsd*</h3> - -<p>PowerPC system in big endian mode running NetBSD. - - <p><hr /> - -<h3 class="heading"><a name="TOC40"></a><a name="powerpc_002dx_002deabisim"></a>powerpc-*-eabisim</h3> - -<p>Embedded PowerPC system in big endian mode for use in running under the -PSIM simulator. - - <p><hr /> - -<h3 class="heading"><a name="TOC41"></a><a name="powerpc_002dx_002deabi"></a>powerpc-*-eabi</h3> - -<p>Embedded PowerPC system in big endian mode. - - <p><hr /> - -<h3 class="heading"><a name="TOC42"></a><a name="powerpcle_002dx_002delf"></a>powerpcle-*-elf</h3> - -<p>PowerPC system in little endian mode, running System V.4. - - <p><hr /> - -<h3 class="heading"><a name="TOC43"></a><a name="powerpcle_002dx_002deabisim"></a>powerpcle-*-eabisim</h3> - -<p>Embedded PowerPC system in little endian mode for use in running under -the PSIM simulator. - - <p><hr /> - -<h3 class="heading"><a name="TOC44"></a><a name="powerpcle_002dx_002deabi"></a>powerpcle-*-eabi</h3> - -<p>Embedded PowerPC system in little endian mode. - - <p><hr /> - -<h3 class="heading"><a name="TOC45"></a><a name="rl78_002dx_002delf"></a>rl78-*-elf</h3> - -<p>The Renesas RL78 processor. -This configuration is intended for embedded systems. - - <p><hr /> - -<h3 class="heading"><a name="TOC46"></a><a name="rx_002dx_002delf"></a>rx-*-elf</h3> - -<p>The Renesas RX processor. See -<a href="http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&fp=/products/mpumcu/rx_family/rx600_series">http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&fp=/products/mpumcu/rx_family/rx600_series</a> -for more information about this processor. - - <p><hr /> - -<h3 class="heading"><a name="TOC47"></a><a name="s390_002dx_002dlinux"></a>s390-*-linux*</h3> - -<p>S/390 system running GNU/Linux for S/390. - - <p><hr /> - -<h3 class="heading"><a name="TOC48"></a><a name="s390x_002dx_002dlinux"></a>s390x-*-linux*</h3> - -<p>zSeries system (64-bit) running GNU/Linux for zSeries. - - <p><hr /> - -<h3 class="heading"><a name="TOC49"></a><a name="s390x_002dibm_002dtpf"></a>s390x-ibm-tpf*</h3> - -<p>zSeries system (64-bit) running TPF. This platform is -supported as cross-compilation target only. - - <p><hr /><!-- Please use Solaris 2 to refer to all release of Solaris, starting --> -<!-- with 2.0 until 2.6, 7, 8, etc. Solaris 1 was a marketing name for --> -<!-- SunOS 4 releases which we don't use to avoid confusion. Solaris --> -<!-- alone is too unspecific and must be avoided. --> - -<h3 class="heading"><a name="TOC50"></a><a name="x_002dx_002dsolaris2"></a>*-*-solaris2*</h3> - -<p>Support for Solaris 8 has removed in GCC 4.8. Support for Solaris 7 has -been removed in GCC 4.6. - - <p>Sun does not ship a C compiler with Solaris 2 before Solaris 10, though -you can download the Sun Studio compilers for free. In Solaris 10 and -11, GCC 3.4.3 is available as <samp><span class="command">/usr/sfw/bin/gcc</span></samp>. Solaris 11 -also provides GCC 4.5.2 as <samp><span class="command">/usr/gcc/4.5/bin/gcc</span></samp>. Alternatively, -you can install a pre-built GCC to bootstrap and install GCC. See the -<a href="binaries.html">binaries page</a> for details. - - <p>The Solaris 2 <samp><span class="command">/bin/sh</span></samp> will often fail to configure -‘<samp><span class="samp">libstdc++-v3</span></samp>’, ‘<samp><span class="samp">boehm-gc</span></samp>’ or ‘<samp><span class="samp">libjava</span></samp>’. We therefore -recommend using the following initial sequence of commands - -<pre class="smallexample"> % CONFIG_SHELL=/bin/ksh - % export CONFIG_SHELL -</pre> - <p class="noindent">and proceed as described in <a href="configure.html">the configure instructions</a>. -In addition we strongly recommend specifying an absolute path to invoke -<samp><var>srcdir</var><span class="command">/configure</span></samp>. - - <p>Solaris 2 comes with a number of optional OS packages. Some of these -are needed to use GCC fully, namely <code>SUNWarc</code>, -<code>SUNWbtool</code>, <code>SUNWesu</code>, <code>SUNWhea</code>, <code>SUNWlibm</code>, -<code>SUNWsprot</code>, and <code>SUNWtoo</code>. If you did not install all -optional packages when installing Solaris 2, you will need to verify that -the packages that GCC needs are installed. - - <p>To check whether an optional package is installed, use -the <samp><span class="command">pkginfo</span></samp> command. To add an optional package, use the -<samp><span class="command">pkgadd</span></samp> command. For further details, see the Solaris 2 -documentation. - - <p>Trying to use the linker and other tools in -<samp><span class="file">/usr/ucb</span></samp> to install GCC has been observed to cause trouble. -For example, the linker may hang indefinitely. The fix is to remove -<samp><span class="file">/usr/ucb</span></samp> from your <samp><span class="env">PATH</span></samp>. - - <p>The build process works more smoothly with the legacy Sun tools so, if you -have <samp><span class="file">/usr/xpg4/bin</span></samp> in your <samp><span class="env">PATH</span></samp>, we recommend that you place -<samp><span class="file">/usr/bin</span></samp> before <samp><span class="file">/usr/xpg4/bin</span></samp> for the duration of the build. - - <p>We recommend the use of the Sun assembler or the GNU assembler, in -conjunction with the Sun linker. The GNU <samp><span class="command">as</span></samp> -versions included in Solaris 10, from GNU binutils 2.15, and Solaris 11, -from GNU binutils 2.19, are known to work. They can be found in -<samp><span class="file">/usr/sfw/bin/gas</span></samp>. Current versions of GNU binutils (2.22) -are known to work as well. Note that your mileage may vary -if you use a combination of the GNU tools and the Sun tools: while the -combination GNU <samp><span class="command">as</span></samp> + Sun <samp><span class="command">ld</span></samp> should reasonably work, -the reverse combination Sun <samp><span class="command">as</span></samp> + GNU <samp><span class="command">ld</span></samp> may fail to -build or cause memory corruption at runtime in some cases for C++ programs. -<!-- FIXME: still? --> -GNU <samp><span class="command">ld</span></samp> usually works as well, although the version included in -Solaris 10 cannot be used due to several bugs. Again, the current -version (2.22) is known to work, but generally lacks platform specific -features, so better stay with Sun <samp><span class="command">ld</span></samp>. To use the LTO linker -plugin (<samp><span class="option">-fuse-linker-plugin</span></samp>) with GNU <samp><span class="command">ld</span></samp>, GNU -binutils <em>must</em> be configured with <samp><span class="option">--enable-largefile</span></samp>. - - <p>To enable symbol versioning in ‘<samp><span class="samp">libstdc++</span></samp>’ with Sun <samp><span class="command">ld</span></samp>, -you need to have any version of GNU <samp><span class="command">c++filt</span></samp>, which is part of -GNU binutils. ‘<samp><span class="samp">libstdc++</span></samp>’ symbol versioning will be disabled if no -appropriate version is found. Sun <samp><span class="command">c++filt</span></samp> from the Sun Studio -compilers does <em>not</em> work. - - <p>Sun bug 4296832 turns up when compiling X11 headers with GCC 2.95 or -newer: <samp><span class="command">g++</span></samp> will complain that types are missing. These headers -assume that omitting the type means <code>int</code>; this assumption worked for -C90 but is wrong for C++, and is now wrong for C99 also. - - <p>Sun bug 4927647 sometimes causes random spurious testsuite failures -related to missing diagnostic output. This bug doesn't affect GCC -itself, rather it is a kernel bug triggered by the <samp><span class="command">expect</span></samp> -program which is used only by the GCC testsuite driver. When the bug -causes the <samp><span class="command">expect</span></samp> program to miss anticipated output, extra -testsuite failures appear. - - <p>There are patches for Solaris 9 (117171-11 or newer for -SPARC, 117172-11 or newer for Intel) that address this problem. - - <p>Thread-local storage (TLS) is supported in Solaris 9, but requires -some patches. The ‘<samp><span class="samp">libthread</span></samp>’ patches provide the -<code>__tls_get_addr</code> (SPARC, 64-bit x86) resp. <code>___tls_get_addr</code> -(32-bit x86) functions. On Solaris 9, the necessary support -on SPARC is present since FCS, while 114432-05 or newer is required on -Intel. Additionally, on Solaris 9/x86, patch 113986-02 or newer is -required for the Sun <samp><span class="command">ld</span></samp> and runtime linker (<samp><span class="command">ld.so.1</span></samp>) -support, while Solaris 9/SPARC works since FCS. The linker -patches must be installed even if GNU <samp><span class="command">ld</span></samp> is used. Sun -<samp><span class="command">as</span></samp> in Solaris 9 doesn't support the necessary -relocations, so GNU <samp><span class="command">as</span></samp> must be used. The <samp><span class="command">configure</span></samp> -script checks for those prerequisites and automatically enables TLS -support if they are met. Although those minimal patch versions should -work, it is recommended to use the latest patch versions which include -additional bug fixes. - - <p><hr /> - -<h3 class="heading"><a name="TOC51"></a><a name="sparc_002dx_002dx"></a>sparc*-*-*</h3> - -<p>This section contains general configuration information for all -SPARC-based platforms. In addition to reading this section, please -read all other sections that match your target. - - <p>Newer versions of the GNU Multiple Precision Library (GMP), the MPFR -library and the MPC library are known to be miscompiled by earlier -versions of GCC on these platforms. We therefore recommend the use -of the exact versions of these libraries listed as minimal versions -in <a href="prerequisites.html">the prerequisites</a>. - - <p><hr /> - -<h3 class="heading"><a name="TOC52"></a><a name="sparc_002dsun_002dsolaris2"></a>sparc-sun-solaris2*</h3> - -<p>When GCC is configured to use GNU binutils 2.14 or later, the binaries -produced are smaller than the ones produced using Sun's native tools; -this difference is quite significant for binaries containing debugging -information. - - <p>Starting with Solaris 7, the operating system is capable of executing -64-bit SPARC V9 binaries. GCC 3.1 and later properly supports -this; the <samp><span class="option">-m64</span></samp> option enables 64-bit code generation. -However, if all you want is code tuned for the UltraSPARC CPU, you -should try the <samp><span class="option">-mtune=ultrasparc</span></samp> option instead, which produces -code that, unlike full 64-bit code, can still run on non-UltraSPARC -machines. - - <p>When configuring on a Solaris 7 or later system that is running a kernel -that supports only 32-bit binaries, one must configure with -<samp><span class="option">--disable-multilib</span></samp>, since we will not be able to build the -64-bit target libraries. - - <p>GCC 3.3 and GCC 3.4 trigger code generation bugs in earlier versions of -the GNU compiler (especially GCC 3.0.x versions), which lead to the -miscompilation of the stage1 compiler and the subsequent failure of the -bootstrap process. A workaround is to use GCC 3.2.3 as an intermediary -stage, i.e. to bootstrap that compiler with the base compiler and then -use it to bootstrap the final compiler. - - <p>GCC 3.4 triggers a code generation bug in versions 5.4 (Sun ONE Studio 7) -and 5.5 (Sun ONE Studio 8) of the Sun compiler, which causes a bootstrap -failure in form of a miscompilation of the stage1 compiler by the Sun -compiler. This is Sun bug 4974440. This is fixed with patch 112760-07. - - <p>GCC 3.4 changed the default debugging format from Stabs to DWARF-2 for -32-bit code on Solaris 7 and later. If you use the Sun assembler, this -change apparently runs afoul of Sun bug 4910101 (which is referenced as -an x86-only problem by Sun, probably because they do not use DWARF-2). -A symptom of the problem is that you cannot compile C++ programs like -<samp><span class="command">groff</span></samp> 1.19.1 without getting messages similar to the following: - -<pre class="smallexample"> ld: warning: relocation error: R_SPARC_UA32: ... - external symbolic relocation against non-allocatable section - .debug_info cannot be processed at runtime: relocation ignored. -</pre> - <p class="noindent">To work around this problem, compile with <samp><span class="option">-gstabs+</span></samp> instead of -plain <samp><span class="option">-g</span></samp>. - - <p>When configuring the GNU Multiple Precision Library (GMP), the MPFR -library or the MPC library on a Solaris 7 or later system, the canonical -target triplet must be specified as the <samp><span class="command">build</span></samp> parameter on the -configure line. This target triplet can be obtained by invoking <samp><span class="command">./config.guess</span></samp> in the toplevel source directory of GCC (and -not that of GMP or MPFR or MPC). For example on a Solaris 9 system: - -<pre class="smallexample"> % ./configure --build=sparc-sun-solaris2.9 --prefix=xxx -</pre> - <p><hr /> - -<h3 class="heading"><a name="TOC53"></a><a name="sparc_002dsun_002dsolaris210"></a>sparc-sun-solaris2.10</h3> - -<p>There is a bug in older versions of the Sun assembler which breaks -thread-local storage (TLS). A typical error message is - -<pre class="smallexample"> ld: fatal: relocation error: R_SPARC_TLS_LE_HIX22: file /var/tmp//ccamPA1v.o: - symbol <unknown>: bad symbol type SECT: symbol type must be TLS -</pre> - <p class="noindent">This bug is fixed in Sun patch 118683-03 or later. - - <p><hr /> - -<h3 class="heading"><a name="TOC54"></a><a name="sparc_002dx_002dlinux"></a>sparc-*-linux*</h3> - -<p>GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4 -or newer on this platform. All earlier binutils and glibc -releases mishandled unaligned relocations on <code>sparc-*-*</code> targets. - - <p><hr /> - -<h3 class="heading"><a name="TOC55"></a><a name="sparc64_002dx_002dsolaris2"></a>sparc64-*-solaris2*</h3> - -<p>When configuring the GNU Multiple Precision Library (GMP), the MPFR -library or the MPC library, the canonical target triplet must be specified -as the <samp><span class="command">build</span></samp> parameter on the configure line. For example -on a Solaris 9 system: - -<pre class="smallexample"> % ./configure --build=sparc64-sun-solaris2.9 --prefix=xxx -</pre> - <p>The following compiler flags must be specified in the configure -step in order to bootstrap this target with the Sun compiler: - -<pre class="smallexample"> % CC="cc -xarch=v9 -xildoff" <var>srcdir</var>/configure [<var>options</var>] [<var>target</var>] -</pre> - <p class="noindent"><samp><span class="option">-xarch=v9</span></samp> specifies the SPARC-V9 architecture to the Sun toolchain -and <samp><span class="option">-xildoff</span></samp> turns off the incremental linker. - - <p><hr /> - -<h3 class="heading"><a name="TOC56"></a><a name="sparcv9_002dx_002dsolaris2"></a>sparcv9-*-solaris2*</h3> - -<p>This is a synonym for ‘<samp><span class="samp">sparc64-*-solaris2*</span></samp>’. - - <p><hr /> - -<h3 class="heading"><a name="TOC57"></a><a name="c6x_002dx_002dx"></a>c6x-*-*</h3> - -<p>The C6X family of processors. This port requires binutils-2.22 or newer. - - <p><hr /> - -<h3 class="heading"><a name="TOC58"></a><a name="tilegx_002d_002a_002dlinux"></a>tilegx-*-linux*</h3> - -<p>The TILE-Gx processor running GNU/Linux. This port requires -binutils-2.22 or newer. - - <p><hr /> - -<h3 class="heading"><a name="TOC59"></a><a name="tilepro_002d_002a_002dlinux"></a>tilepro-*-linux*</h3> - -<p>The TILEPro processor running GNU/Linux. This port requires -binutils-2.22 or newer. - - <p><hr /> - -<h3 class="heading"><a name="TOC60"></a><a name="x_002dx_002dvxworks"></a>*-*-vxworks*</h3> - -<p>Support for VxWorks is in flux. At present GCC supports <em>only</em> the -very recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC. -We welcome patches for other architectures supported by VxWorks 5.5. -Support for VxWorks AE would also be welcome; we believe this is merely -a matter of writing an appropriate “configlette” (see below). We are -not interested in supporting older, a.out or COFF-based, versions of -VxWorks in GCC 3. - - <p>VxWorks comes with an older version of GCC installed in -<samp><var>$WIND_BASE</var><span class="file">/host</span></samp>; we recommend you do not overwrite it. -Choose an installation <var>prefix</var> entirely outside <var>$WIND_BASE</var>. -Before running <samp><span class="command">configure</span></samp>, create the directories <samp><var>prefix</var></samp> -and <samp><var>prefix</var><span class="file">/bin</span></samp>. Link or copy the appropriate assembler, -linker, etc. into <samp><var>prefix</var><span class="file">/bin</span></samp>, and set your <var>PATH</var> to -include that directory while running both <samp><span class="command">configure</span></samp> and -<samp><span class="command">make</span></samp>. - - <p>You must give <samp><span class="command">configure</span></samp> the -<samp><span class="option">--with-headers=</span><var>$WIND_BASE</var><span class="option">/target/h</span></samp> switch so that it can -find the VxWorks system headers. Since VxWorks is a cross compilation -target only, you must also specify <samp><span class="option">--target=</span><var>target</var></samp>. -<samp><span class="command">configure</span></samp> will attempt to create the directory -<samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/sys-include</span></samp> and copy files into it; -make sure the user running <samp><span class="command">configure</span></samp> has sufficient privilege -to do so. - - <p>GCC's exception handling runtime requires a special “configlette” -module, <samp><span class="file">contrib/gthr_supp_vxw_5x.c</span></samp>. Follow the instructions in -that file to add the module to your kernel build. (Future versions of -VxWorks will incorporate this module.) - - <p><hr /> - -<h3 class="heading"><a name="TOC61"></a><a name="x86_002d64_002dx_002dx"></a>x86_64-*-*, amd64-*-*</h3> - -<p>GCC supports the x86-64 architecture implemented by the AMD64 processor -(amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD. -On GNU/Linux the default is a bi-arch compiler which is able to generate -both 64-bit x86-64 and 32-bit x86 code (via the <samp><span class="option">-m32</span></samp> switch). - - <p><hr /> - -<h3 class="heading"><a name="TOC62"></a><a name="x86_002d64_002dx_002dsolaris210"></a>x86_64-*-solaris2.1[0-9]*</h3> - -<p>GCC also supports the x86-64 architecture implemented by the AMD64 -processor (‘<samp><span class="samp">amd64-*-*</span></samp>’ is an alias for ‘<samp><span class="samp">x86_64-*-*</span></samp>’) on -Solaris 10 or later. Unlike other systems, without special options a -bi-arch compiler is built which generates 32-bit code by default, but -can generate 64-bit x86-64 code with the <samp><span class="option">-m64</span></samp> switch. Since -GCC 4.7, there is also configuration that defaults to 64-bit code, but -can generate 32-bit code with <samp><span class="option">-m32</span></samp>. To configure and build -this way, you have to provide all support libraries like <samp><span class="file">libgmp</span></samp> -as 64-bit code, configure with <samp><span class="option">--target=x86_64-pc-solaris2.1x</span></samp> -and ‘<samp><span class="samp">CC=gcc -m64</span></samp>’. - - <p><hr /> - -<h3 class="heading"><a name="TOC63"></a><a name="xtensa_002dx_002delf"></a>xtensa*-*-elf</h3> - -<p>This target is intended for embedded Xtensa systems using the -‘<samp><span class="samp">newlib</span></samp>’ C library. It uses ELF but does not support shared -objects. Designed-defined instructions specified via the -Tensilica Instruction Extension (TIE) language are only supported -through inline assembly. - - <p>The Xtensa configuration information must be specified prior to -building GCC. The <samp><span class="file">include/xtensa-config.h</span></samp> header -file contains the configuration information. If you created your -own Xtensa configuration with the Xtensa Processor Generator, the -downloaded files include a customized copy of this header file, -which you can use to replace the default header file. - - <p><hr /> - -<h3 class="heading"><a name="TOC64"></a><a name="xtensa_002dx_002dlinux"></a>xtensa*-*-linux*</h3> - -<p>This target is for Xtensa systems running GNU/Linux. It supports ELF -shared objects and the GNU C library (glibc). It also generates -position-independent code (PIC) regardless of whether the -<samp><span class="option">-fpic</span></samp> or <samp><span class="option">-fPIC</span></samp> options are used. In other -respects, this target is the same as the -<a href="#xtensa*-*-elf">‘<samp><span class="samp">xtensa*-*-elf</span></samp>’</a> target. - - <p><hr /> - -<h3 class="heading"><a name="TOC65"></a><a name="windows"></a>Microsoft Windows</h3> - -<h4 class="subheading"><a name="TOC66"></a>Intel 16-bit versions</h4> - -<p>The 16-bit versions of Microsoft Windows, such as Windows 3.1, are not -supported. - - <p>However, the 32-bit port has limited support for Microsoft -Windows 3.11 in the Win32s environment, as a target only. See below. - -<h4 class="subheading"><a name="TOC67"></a>Intel 32-bit versions</h4> - -<p>The 32-bit versions of Windows, including Windows 95, Windows NT, Windows -XP, and Windows Vista, are supported by several different target -platforms. These targets differ in which Windows subsystem they target -and which C libraries are used. - - <ul> -<li>Cygwin <a href="#x-x-cygwin">*-*-cygwin</a>: Cygwin provides a user-space -Linux API emulation layer in the Win32 subsystem. -<li>Interix <a href="#x-x-interix">*-*-interix</a>: The Interix subsystem -provides native support for POSIX. -<li>MinGW <a href="#x-x-mingw32">*-*-mingw32</a>: MinGW is a native GCC port for -the Win32 subsystem that provides a subset of POSIX. -<li>MKS i386-pc-mks: NuTCracker from MKS. See -<a href="http://www.mkssoftware.com/">http://www.mkssoftware.com/</a> for more information. -</ul> - -<h4 class="subheading"><a name="TOC68"></a>Intel 64-bit versions</h4> - -<p>GCC contains support for x86-64 using the mingw-w64 -runtime library, available from <a href="http://mingw-w64.sourceforge.net/">http://mingw-w64.sourceforge.net/</a>. -This library should be used with the target triple x86_64-pc-mingw32. - - <p>Presently Windows for Itanium is not supported. - -<h4 class="subheading"><a name="TOC69"></a>Windows CE</h4> - -<p>Windows CE is supported as a target only on Hitachi -SuperH (sh-wince-pe), and MIPS (mips-wince-pe). - -<h4 class="subheading"><a name="TOC70"></a>Other Windows Platforms</h4> - -<p>GCC no longer supports Windows NT on the Alpha or PowerPC. - - <p>GCC no longer supports the Windows POSIX subsystem. However, it does -support the Interix subsystem. See above. - - <p>Old target names including *-*-winnt and *-*-windowsnt are no longer used. - - <p>PW32 (i386-pc-pw32) support was never completed, and the project seems to -be inactive. See <a href="http://pw32.sourceforge.net/">http://pw32.sourceforge.net/</a> for more information. - - <p>UWIN support has been removed due to a lack of maintenance. - - <p><hr /> - -<h3 class="heading"><a name="TOC71"></a><a name="x_002dx_002dcygwin"></a>*-*-cygwin</h3> - -<p>Ports of GCC are included with the -<a href="http://www.cygwin.com/">Cygwin environment</a>. - - <p>GCC will build under Cygwin without modification; it does not build -with Microsoft's C++ compiler and there are no plans to make it do so. - - <p>The Cygwin native compiler can be configured to target any 32-bit x86 -cpu architecture desired; the default is i686-pc-cygwin. It should be -used with as up-to-date a version of binutils as possible; use either -the latest official GNU binutils release in the Cygwin distribution, -or version 2.20 or above if building your own. - - <p><hr /> - -<h3 class="heading"><a name="TOC72"></a><a name="x_002dx_002dinterix"></a>*-*-interix</h3> - -<p>The Interix target is used by OpenNT, Interix, Services For UNIX (SFU), -and Subsystem for UNIX-based Applications (SUA). Applications compiled -with this target run in the Interix subsystem, which is separate from -the Win32 subsystem. This target was last known to work in GCC 3.3. - - <p><hr /> - -<h3 class="heading"><a name="TOC73"></a><a name="x_002dx_002dmingw32"></a>*-*-mingw32</h3> - -<p>GCC will build with and support only MinGW runtime 3.12 and later. -Earlier versions of headers are incompatible with the new default semantics -of <code>extern inline</code> in <code>-std=c99</code> and <code>-std=gnu99</code> modes. - - <p><hr /> - -<h3 class="heading"><a name="TOC74"></a><a name="older"></a>Older systems</h3> - -<p>GCC contains support files for many older (1980s and early -1990s) Unix variants. For the most part, support for these systems -has not been deliberately removed, but it has not been maintained for -several years and may suffer from bitrot. - - <p>Starting with GCC 3.1, each release has a list of “obsoleted” systems. -Support for these systems is still present in that release, but -<samp><span class="command">configure</span></samp> will fail unless the <samp><span class="option">--enable-obsolete</span></samp> -option is given. Unless a maintainer steps forward, support for these -systems will be removed from the next release of GCC. - - <p>Support for old systems as hosts for GCC can cause problems if the -workarounds for compiler, library and operating system bugs affect the -cleanliness or maintainability of the rest of GCC. In some cases, to -bring GCC up on such a system, if still possible with current GCC, may -require first installing an old version of GCC which did work on that -system, and using it to compile a more recent GCC, to avoid bugs in the -vendor compiler. Old releases of GCC 1 and GCC 2 are available in the -<samp><span class="file">old-releases</span></samp> directory on the <a href="../mirrors.html">GCC mirror sites</a>. Header bugs may generally be avoided using -<samp><span class="command">fixincludes</span></samp>, but bugs or deficiencies in libraries and the -operating system may still cause problems. - - <p>Support for older systems as targets for cross-compilation is less -problematic than support for them as hosts for GCC; if an enthusiast -wishes to make such a target work again (including resurrecting any of -the targets that never worked with GCC 2, starting from the last -version before they were removed), patches -<a href="../contribute.html">following the usual requirements</a> would be -likely to be accepted, since they should not affect the support for more -modern targets. - - <p>For some systems, old versions of GNU binutils may also be useful, -and are available from <samp><span class="file">pub/binutils/old-releases</span></samp> on -<a href="http://sourceware.org/mirrors.html">sourceware.org mirror sites</a>. - - <p>Some of the information on specific systems above relates to -such older systems, but much of the information -about GCC on such systems (which may no longer be applicable to -current GCC) is to be found in the GCC texinfo manual. - - <p><hr /> - -<h3 class="heading"><a name="TOC75"></a><a name="elf"></a>all ELF targets (SVR4, Solaris 2, etc.)</h3> - -<p>C++ support is significantly better on ELF targets if you use the -<a href="./configure.html#with-gnu-ld">GNU linker</a>; duplicate copies of -inlines, vtables and template instantiations will be discarded -automatically. - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - diff --git a/gcc-4.8/INSTALL/test.html b/gcc-4.8/INSTALL/test.html deleted file mode 100644 index 8bc6b29a2..000000000 --- a/gcc-4.8/INSTALL/test.html +++ /dev/null @@ -1,234 +0,0 @@ -<html lang="en"> -<head> -<title>Installing GCC: Testing</title> -<meta http-equiv="Content-Type" content="text/html"> -<meta name="description" content="Installing GCC: Testing"> -<meta name="generator" content="makeinfo 4.12"> -<link title="Top" rel="top" href="#Top"> -<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> -<!-- -Copyright (C) 1988-2013 Free Software Foundation, Inc. - - Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, the Front-Cover texts being (a) (see below), and -with the Back-Cover Texts being (b) (see below). A copy of the -license is included in the section entitled "GNU Free Documentation License". - -(a) The FSF's Front-Cover Text is: - - A GNU Manual - -(b) The FSF's Back-Cover Text is: - - You have freedom to copy and modify this GNU Manual, like GNU - software. Copies published by the Free Software Foundation raise - funds for GNU development.--> -<meta http-equiv="Content-Style-Type" content="text/css"> -<style type="text/css"><!-- - pre.display { font-family:inherit } - pre.format { font-family:inherit } - pre.smalldisplay { font-family:inherit; font-size:smaller } - pre.smallformat { font-family:inherit; font-size:smaller } - pre.smallexample { font-size:smaller } - pre.smalllisp { font-size:smaller } - span.sc { font-variant:small-caps } - span.roman { font-family:serif; font-weight:normal; } - span.sansserif { font-family:sans-serif; font-weight:normal; } ---></style> -</head> -<body> -<h1 class="settitle">Installing GCC: Testing</h1> -<a name="index-Testing-1"></a><a name="index-Installing-GCC_003a-Testing-2"></a><a name="index-Testsuite-3"></a> -Before you install GCC, we encourage you to run the testsuites and to -compare your results with results from a similar configuration that have -been submitted to the -<a href="http://gcc.gnu.org/ml/gcc-testresults/">gcc-testresults mailing list</a>. -Some of these archived results are linked from the build status lists -at <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>, although not everyone who -reports a successful build runs the testsuites and submits the results. -This step is optional and may require you to download additional software, -but it can give you confidence in your new GCC installation or point out -problems before you install and start using your new GCC. - - <p>First, you must have <a href="download.html">downloaded the testsuites</a>. -These are part of the full distribution, but if you downloaded the -“core” compiler plus any front ends, you must download the testsuites -separately. - - <p>Second, you must have the testing tools installed. This includes -<a href="http://www.gnu.org/software/dejagnu/">DejaGnu</a>, Tcl, and Expect; -the DejaGnu site has links to these. - - <p>If the directories where <samp><span class="command">runtest</span></samp> and <samp><span class="command">expect</span></samp> were -installed are not in the <samp><span class="env">PATH</span></samp>, you may need to set the following -environment variables appropriately, as in the following example (which -assumes that DejaGnu has been installed under <samp><span class="file">/usr/local</span></samp>): - -<pre class="smallexample"> TCL_LIBRARY = /usr/local/share/tcl8.0 - DEJAGNULIBS = /usr/local/share/dejagnu -</pre> - <p>(On systems such as Cygwin, these paths are required to be actual -paths, not mounts or links; presumably this is due to some lack of -portability in the DejaGnu code.) - - <p>Finally, you can run the testsuite (which may take a long time): -<pre class="smallexample"> cd <var>objdir</var>; make -k check -</pre> - <p>This will test various components of GCC, such as compiler -front ends and runtime libraries. While running the testsuite, DejaGnu -might emit some harmless messages resembling -‘<samp><span class="samp">WARNING: Couldn't find the global config file.</span></samp>’ or -‘<samp><span class="samp">WARNING: Couldn't find tool init file</span></samp>’ that can be ignored. - - <p>If you are testing a cross-compiler, you may want to run the testsuite -on a simulator as described at <a href="http://gcc.gnu.org/simtest-howto.html">http://gcc.gnu.org/simtest-howto.html</a>. - -<h3 class="section"><a name="TOC0"></a>How can you run the testsuite on selected tests?</h3> - -<p>In order to run sets of tests selectively, there are targets -‘<samp><span class="samp">make check-gcc</span></samp>’ and language specific ‘<samp><span class="samp">make check-c</span></samp>’, -‘<samp><span class="samp">make check-c++</span></samp>’, ‘<samp><span class="samp">make check-fortran</span></samp>’, ‘<samp><span class="samp">make check-java</span></samp>’, -‘<samp><span class="samp">make check-ada</span></samp>’, ‘<samp><span class="samp">make check-objc</span></samp>’, ‘<samp><span class="samp">make check-obj-c++</span></samp>’, -‘<samp><span class="samp">make check-lto</span></samp>’ -in the <samp><span class="file">gcc</span></samp> subdirectory of the object directory. You can also -just run ‘<samp><span class="samp">make check</span></samp>’ in a subdirectory of the object directory. - - <p>A more selective way to just run all <samp><span class="command">gcc</span></samp> execute tests in the -testsuite is to use - -<pre class="smallexample"> make check-gcc RUNTESTFLAGS="execute.exp <var>other-options</var>" -</pre> - <p>Likewise, in order to run only the <samp><span class="command">g++</span></samp> “old-deja” tests in -the testsuite with filenames matching ‘<samp><span class="samp">9805*</span></samp>’, you would use - -<pre class="smallexample"> make check-g++ RUNTESTFLAGS="old-deja.exp=9805* <var>other-options</var>" -</pre> - <p>The <samp><span class="file">*.exp</span></samp> files are located in the testsuite directories of the GCC -source, the most important ones being <samp><span class="file">compile.exp</span></samp>, -<samp><span class="file">execute.exp</span></samp>, <samp><span class="file">dg.exp</span></samp> and <samp><span class="file">old-deja.exp</span></samp>. -To get a list of the possible <samp><span class="file">*.exp</span></samp> files, pipe the -output of ‘<samp><span class="samp">make check</span></samp>’ into a file and look at the -‘<samp><span class="samp">Running ... .exp</span></samp>’ lines. - -<h3 class="section"><a name="TOC1"></a>Passing options and running multiple testsuites</h3> - -<p>You can pass multiple options to the testsuite using the -‘<samp><span class="samp">--target_board</span></samp>’ option of DejaGNU, either passed as part of -‘<samp><span class="samp">RUNTESTFLAGS</span></samp>’, or directly to <samp><span class="command">runtest</span></samp> if you prefer to -work outside the makefiles. For example, - -<pre class="smallexample"> make check-g++ RUNTESTFLAGS="--target_board=unix/-O3/-fmerge-constants" -</pre> - <p>will run the standard <samp><span class="command">g++</span></samp> testsuites (“unix” is the target name -for a standard native testsuite situation), passing -‘<samp><span class="samp">-O3 -fmerge-constants</span></samp>’ to the compiler on every test, i.e., -slashes separate options. - - <p>You can run the testsuites multiple times using combinations of options -with a syntax similar to the brace expansion of popular shells: - -<pre class="smallexample"> ..."--target_board=arm-sim\{-mhard-float,-msoft-float\}\{-O1,-O2,-O3,\}" -</pre> - <p>(Note the empty option caused by the trailing comma in the final group.) -The following will run each testsuite eight times using the ‘<samp><span class="samp">arm-sim</span></samp>’ -target, as if you had specified all possible combinations yourself: - -<pre class="smallexample"> --target_board='arm-sim/-mhard-float/-O1 \ - arm-sim/-mhard-float/-O2 \ - arm-sim/-mhard-float/-O3 \ - arm-sim/-mhard-float \ - arm-sim/-msoft-float/-O1 \ - arm-sim/-msoft-float/-O2 \ - arm-sim/-msoft-float/-O3 \ - arm-sim/-msoft-float' -</pre> - <p>They can be combined as many times as you wish, in arbitrary ways. This -list: - -<pre class="smallexample"> ..."--target_board=unix/-Wextra\{-O3,-fno-strength\}\{-fomit-frame,\}" -</pre> - <p>will generate four combinations, all involving ‘<samp><span class="samp">-Wextra</span></samp>’. - - <p>The disadvantage to this method is that the testsuites are run in serial, -which is a waste on multiprocessor systems. For users with GNU Make and -a shell which performs brace expansion, you can run the testsuites in -parallel by having the shell perform the combinations and <samp><span class="command">make</span></samp> -do the parallel runs. Instead of using ‘<samp><span class="samp">--target_board</span></samp>’, use a -special makefile target: - -<pre class="smallexample"> make -j<var>N</var> check-<var>testsuite</var>//<var>test-target</var>/<var>option1</var>/<var>option2</var>/... -</pre> - <p>For example, - -<pre class="smallexample"> make -j3 check-gcc//sh-hms-sim/{-m1,-m2,-m3,-m3e,-m4}/{,-nofpu} -</pre> - <p>will run three concurrent “make-gcc” testsuites, eventually testing all -ten combinations as described above. Note that this is currently only -supported in the <samp><span class="file">gcc</span></samp> subdirectory. (To see how this works, try -typing <samp><span class="command">echo</span></samp> before the example given here.) - -<h3 class="section"><a name="TOC2"></a>Additional testing for Java Class Libraries</h3> - -<p>The Java runtime tests can be executed via ‘<samp><span class="samp">make check</span></samp>’ -in the <samp><var>target</var><span class="file">/libjava/testsuite</span></samp> directory in -the build tree. - - <p>The <a href="http://sourceware.org/mauve/">Mauve Project</a> provides -a suite of tests for the Java Class Libraries. This suite can be run -as part of libgcj testing by placing the Mauve tree within the libjava -testsuite at <samp><span class="file">libjava/testsuite/libjava.mauve/mauve</span></samp>, or by -specifying the location of that tree when invoking ‘<samp><span class="samp">make</span></samp>’, as in -‘<samp><span class="samp">make MAUVEDIR=~/mauve check</span></samp>’. - -<h3 class="section"><a name="TOC3"></a>How to interpret test results</h3> - -<p>The result of running the testsuite are various <samp><span class="file">*.sum</span></samp> and <samp><span class="file">*.log</span></samp> -files in the testsuite subdirectories. The <samp><span class="file">*.log</span></samp> files contain a -detailed log of the compiler invocations and the corresponding -results, the <samp><span class="file">*.sum</span></samp> files summarize the results. These summaries -contain status codes for all tests: - - <ul> -<li>PASS: the test passed as expected -<li>XPASS: the test unexpectedly passed -<li>FAIL: the test unexpectedly failed -<li>XFAIL: the test failed as expected -<li>UNSUPPORTED: the test is not supported on this platform -<li>ERROR: the testsuite detected an error -<li>WARNING: the testsuite detected a possible problem -</ul> - - <p>It is normal for some tests to report unexpected failures. At the -current time the testing harness does not allow fine grained control -over whether or not a test is expected to fail. This problem should -be fixed in future releases. - -<h3 class="section"><a name="TOC4"></a>Submitting test results</h3> - -<p>If you want to report the results to the GCC project, use the -<samp><span class="file">contrib/test_summary</span></samp> shell script. Start it in the <var>objdir</var> with - -<pre class="smallexample"> <var>srcdir</var>/contrib/test_summary -p your_commentary.txt \ - -m gcc-testresults@gcc.gnu.org |sh -</pre> - <p>This script uses the <samp><span class="command">Mail</span></samp> program to send the results, so -make sure it is in your <samp><span class="env">PATH</span></samp>. The file <samp><span class="file">your_commentary.txt</span></samp> is -prepended to the testsuite summary and should contain any special -remarks you have on your results or your build environment. Please -do not edit the testsuite result block or the subject line, as these -messages may be automatically processed. - - <p><hr /> -<p><a href="./index.html">Return to the GCC Installation page</a> - -<!-- ***Final install*********************************************************** --> -<!-- ***Binaries**************************************************************** --> -<!-- ***Specific**************************************************************** --> -<!-- ***Old documentation****************************************************** --> -<!-- ***GFDL******************************************************************** --> -<!-- *************************************************************************** --> -<!-- Part 6 The End of the Document --> -</body></html> - |