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Diffstat (limited to 'gcc-4.7/configure.ac')
| -rw-r--r-- | gcc-4.7/configure.ac | 3281 |
1 files changed, 3281 insertions, 0 deletions
diff --git a/gcc-4.7/configure.ac b/gcc-4.7/configure.ac new file mode 100644 index 000000000..40aeeee54 --- /dev/null +++ b/gcc-4.7/configure.ac @@ -0,0 +1,3281 @@ +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, +# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 +# Free Software Foundation, Inc. +# +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; see the file COPYING3. If not see +# <http://www.gnu.org/licenses/>. + +############################################################################## +### WARNING: this file contains embedded tabs. Do not run untabify on this file. + +m4_include(config/acx.m4) +m4_include(config/override.m4) +m4_include(config/proginstall.m4) +m4_include(config/elf.m4) +m4_include([libtool.m4]) +m4_include([ltoptions.m4]) +m4_include([ltsugar.m4]) +m4_include([ltversion.m4]) +m4_include([lt~obsolete.m4]) +m4_include([config/cloog.m4]) + +AC_INIT(move-if-change) +AC_PREREQ(2.64) +AC_DISABLE_OPTION_CHECKING + +progname=$0 +# if PWD already has a value, it is probably wrong. +if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi + +# Export original configure arguments for use by sub-configures. +# Quote arguments with shell meta charatcers. +TOPLEVEL_CONFIGURE_ARGUMENTS= +set -- "$progname" "$@" +for ac_arg +do + case "$ac_arg" in + *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*) + ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` + # if the argument is of the form -foo=baz, quote the baz part only + ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;; + *) ;; + esac + # Add the quoted argument to the list. + TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg" +done +if test "$silent" = yes; then + TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent" +fi +# Remove the initial space we just introduced and, as these will be +# expanded by make, quote '$'. +TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'` +AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS) + +# Find the build, host, and target systems. +ACX_NONCANONICAL_BUILD +ACX_NONCANONICAL_HOST +ACX_NONCANONICAL_TARGET + +dnl Autoconf 2.5x and later will set a default program prefix if +dnl --target was used, even if it was the same as --host. Disable +dnl that behavior. This must be done before AC_CANONICAL_SYSTEM +dnl to take effect. +test "$host_noncanonical" = "$target_noncanonical" && + test "$program_prefix$program_suffix$program_transform_name" = \ + NONENONEs,x,x, && + program_transform_name=s,y,y, + +AC_CANONICAL_SYSTEM +AC_ARG_PROGRAM + +m4_pattern_allow([^AS_FOR_TARGET$])dnl +m4_pattern_allow([^AS_FOR_BUILD$])dnl + +# Get 'install' or 'install-sh' and its variants. +AC_PROG_INSTALL +ACX_PROG_LN +AC_PROG_LN_S +AC_PROG_SED +AC_PROG_AWK + +srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}` + +# We pass INSTALL explicitly to sub-makes. Make sure that it is not +# a relative path. +if test "$INSTALL" = "${srcdir}/install-sh -c"; then + INSTALL="${srcpwd}/install-sh -c" +fi + +# Set srcdir to "." if that's what it is. +# This is important for multilib support. +pwd=`${PWDCMD-pwd}` +if test "${pwd}" = "${srcpwd}" ; then + srcdir=. +fi + +topsrcdir=$srcpwd + +extra_host_args= + +### To add a new directory to the tree, first choose whether it is a target +### or a host dependent tool. Then put it into the appropriate list +### (library or tools, host or target), doing a dependency sort. + +# Subdirs will be configured in the order listed in build_configdirs, +# configdirs, or target_configdirs; see the serialization section below. + +# Dependency sorting is only needed when *configuration* must be done in +# a particular order. In all cases a dependency should be specified in +# the Makefile, whether or not it's implicitly specified here. + +# Double entries in build_configdirs, configdirs, or target_configdirs may +# cause circular dependencies and break everything horribly. + +# these library is used by various programs built for the build +# environment +# +build_libs="build-libiberty" + +# these tools are built for the build environment +build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes" + +# these libraries are used by various programs built for the host environment +# +host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc ppl cloog libelf libiconv" + +# these tools are built for the host environment +# Note, the powerpc-eabi build depends on sim occurring before gdb in order to +# know that we are building the simulator. +# binutils, gas and ld appear in that order because it makes sense to run +# "make check" in that particular order. +# If --enable-gold is used, "gold" may replace "ld". +host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools" + +# libgcj represents the runtime libraries only used by gcj. +libgcj="target-libffi \ + target-zlib \ + target-libjava" + +# these libraries are built for the target environment, and are built after +# the host libraries and the host tools (which may be a cross compiler) +# Note that libiberty is not a target library. +target_libraries="target-libgcc \ + target-libgloss \ + target-newlib \ + target-libgomp \ + target-libitm \ + target-libstdc++-v3 \ + target-libmudflap \ + target-libssp \ + target-libquadmath \ + target-libgfortran \ + target-boehm-gc \ + ${libgcj} \ + target-libobjc \ + target-libada \ + target-libgo" + +# these tools are built using the target libraries, and are intended to +# run only in the target environment +# +# note: any program that *uses* libraries that are in the "target_libraries" +# list belongs in this list. +# +target_tools="target-rda" + +################################################################################ + +## All tools belong in one of the four categories, and are assigned above +## We assign ${configdirs} this way to remove all embedded newlines. This +## is important because configure will choke if they ever get through. +## ${configdirs} is directories we build using the host tools. +## ${target_configdirs} is directories we build using the target tools. +configdirs=`echo ${host_libs} ${host_tools}` +target_configdirs=`echo ${target_libraries} ${target_tools}` +build_configdirs=`echo ${build_libs} ${build_tools}` + +m4_divert_text([PARSE_ARGS], +[case $srcdir in + *" "*) +m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl + AC_MSG_ERROR([path to source, $srcdir, contains spaces]) +m4_popdef([AS_MESSAGE_LOG_FD])dnl + ;; +esac +ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'` +]) + +################################################################################ + +srcname="gnu development package" + +# This gets set non-empty for some net releases of packages. +appdirs="" + +# Define is_cross_compiler to save on calls to 'test'. +is_cross_compiler= +if test x"${host}" = x"${target}" ; then + is_cross_compiler=no +else + is_cross_compiler=yes +fi + +# Find the build and target subdir names. +GCC_TOPLEV_SUBDIRS +# Be sure to cover against remnants of an in-tree build. +if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then + AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}. +Use a pristine source tree when building in a separate tree]) +fi + +# Skipdirs are removed silently. +skipdirs= +# Noconfigdirs are removed loudly. +noconfigdirs="" + +use_gnu_ld= +# Make sure we don't let GNU ld be added if we didn't want it. +if test x$with_gnu_ld = xno ; then + use_gnu_ld=no + noconfigdirs="$noconfigdirs ld gold" +fi + +use_gnu_as= +# Make sure we don't let GNU as be added if we didn't want it. +if test x$with_gnu_as = xno ; then + use_gnu_as=no + noconfigdirs="$noconfigdirs gas" +fi + +use_included_zlib= +# Make sure we don't let ZLIB be added if we didn't want it. +if test x$with_system_zlib = xyes ; then + use_included_zlib=no + noconfigdirs="$noconfigdirs zlib" +fi + +# some tools are so dependent upon X11 that if we're not building with X, +# it's not even worth trying to configure, much less build, that tool. + +case ${with_x} in + yes | "") ;; # the default value for this tree is that X11 is available + no) + skipdirs="${skipdirs} tk itcl libgui" + # We won't be able to build gdbtk without X. + enable_gdbtk=no + ;; + *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;; +esac + +# Some are only suitable for cross toolchains. +# Remove these if host=target. +cross_only="target-libgloss target-newlib target-opcodes" + +case $is_cross_compiler in + no) skipdirs="${skipdirs} ${cross_only}" ;; +esac + +# If both --with-headers and --with-libs are specified, default to +# --without-newlib. +if test x"${with_headers}" != x && test x"${with_headers}" != xno \ + && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then + if test x"${with_newlib}" = x ; then + with_newlib=no + fi +fi + +# Recognize --with-newlib/--without-newlib. +case ${with_newlib} in + no) skipdirs="${skipdirs} target-newlib" ;; + yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;; +esac + +# Handle --enable-gold, --enable-ld. +# --disable-gold [--enable-ld] +# Build only ld. Default option. +# --enable-gold [--enable-ld] +# Build both gold and ld. Install gold as "ld.gold", install ld +# as "ld.bfd" and "ld". +# --enable-gold=default [--enable-ld] +# Build both gold and ld. Install gold as "ld.gold" and "ld", +# install ld as "ld.bfd". +# --enable-gold[=default] --disable-ld +# Build only gold, which is then installed as both "ld.gold" and "ld". +# --enable-gold --enable-ld=default +# Build both gold (installed as "ld.gold") and ld (installed as "ld" +# and ld.bfd). +# In other words, ld is default +# --enable-gold=default --enable-ld=default +# Error. + +default_ld= +AC_ARG_ENABLE(gold, +[AS_HELP_STRING([[--enable-gold[=ARG]]], + [build gold @<:@ARG={default,yes,no}@:>@])], +ENABLE_GOLD=$enableval, +ENABLE_GOLD=no) +case "${ENABLE_GOLD}" in + yes|default) + # Check for ELF target. + is_elf=no + case "${target}" in + *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \ + | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \ + | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \ + | *-*-solaris2* | *-*-nto*) + case "${target}" in + *-*-linux*aout* | *-*-linux*oldld*) + ;; + *) + is_elf=yes + ;; + esac + esac + + if test "$is_elf" = "yes"; then + # Check for target supported by gold. + case "${target}" in + i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-*) + configdirs="$configdirs gold" + if test x${ENABLE_GOLD} = xdefault; then + default_ld=gold + fi + ENABLE_GOLD=yes + ;; + esac + fi + ;; + no) + ;; + *) + AC_MSG_ERROR([invalid --enable-gold argument]) + ;; +esac + +AC_ARG_ENABLE(ld, +[AS_HELP_STRING([[--enable-ld[=ARG]]], + [build ld @<:@ARG={default,yes,no}@:>@])], +ENABLE_LD=$enableval, +ENABLE_LD=yes) + +case "${ENABLE_LD}" in + default) + if test x${default_ld} != x; then + AC_MSG_ERROR([either gold or ld can be the default ld]) + fi + ;; + yes) + ;; + no) + if test x${ENABLE_GOLD} != xyes; then + AC_MSG_WARN([neither ld nor gold are enabled]) + fi + configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'` + ;; + *) + AC_MSG_ERROR([invalid --enable-ld argument]) + ;; +esac + +# Configure extra directories which are host specific + +case "${host}" in + *-cygwin*) + configdirs="$configdirs libtermcap" ;; +esac + +# A target can indicate whether a language isn't supported for some reason. +# Only spaces may be used in this macro; not newlines or tabs. +unsupported_languages= + +# Remove more programs from consideration, based on the host or +# target this usually means that a port of the program doesn't +# exist yet. + +case "${host}" in + i[[3456789]]86-*-msdosdjgpp*) + noconfigdirs="$noconfigdirs tcl tk itcl" + ;; +esac + + +AC_ARG_ENABLE(libquadmath, +AS_HELP_STRING([--disable-libquadmath], + [do not build libquadmath directory]), +ENABLE_LIBQUADMATH=$enableval, +ENABLE_LIBQUADMATH=yes) +if test "${ENABLE_LIBQUADMATH}" = "no" ; then + noconfigdirs="$noconfigdirs target-libquadmath" +fi + + +AC_ARG_ENABLE(libquadmath-support, +AS_HELP_STRING([--disable-libquadmath-support], + [disable libquadmath support for Fortran]), +ENABLE_LIBQUADMATH_SUPPORT=$enableval, +ENABLE_LIBQUADMATH_SUPPORT=yes) +enable_libquadmath_support= +if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then + enable_libquadmath_support=no +fi + + +AC_ARG_ENABLE(libada, +[AS_HELP_STRING([--enable-libada], [build libada directory])], +ENABLE_LIBADA=$enableval, +ENABLE_LIBADA=yes) +if test "${ENABLE_LIBADA}" != "yes" ; then + noconfigdirs="$noconfigdirs gnattools" +fi + +AC_ARG_ENABLE(libssp, +[AS_HELP_STRING([--enable-libssp], [build libssp directory])], +ENABLE_LIBSSP=$enableval, +ENABLE_LIBSSP=yes) + +# Save it here so that, even in case of --enable-libgcj, if the Java +# front-end isn't enabled, we still get libgcj disabled. +libgcj_saved=$libgcj +case $enable_libgcj in +yes) + # If we reset it here, it won't get added to noconfigdirs in the + # target-specific build rules, so it will be forcibly enabled + # (unless the Java language itself isn't enabled). + libgcj= + ;; +no) + # Make sure we get it printed in the list of not supported target libs. + # Don't disable libffi, though, other languages use it. + noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`" + # Clear libgcj_saved so that even if java is enabled libffi won't be + # built. + libgcj_saved= + ;; +esac + +AC_ARG_ENABLE(static-libjava, +[AS_HELP_STRING([[--enable-static-libjava[=ARG]]], + [build static libjava @<:@default=no@:>@])], +ENABLE_STATIC_LIBJAVA=$enableval, +ENABLE_STATIC_LIBJAVA=no) +enable_static_libjava= +if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then + enable_static_libjava=yes +fi + +if test x$enable_static_libjava != xyes ; then + EXTRA_CONFIGARGS_LIBJAVA=--disable-static +fi +AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA) + +# Disable libmudflap on some systems. +if test x$enable_libmudflap = x ; then + case "${target}" in + *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu) + # Enable libmudflap by default in GNU and friends. + ;; + *-*-freebsd*) + # Enable libmudflap by default in FreeBSD. + ;; + *) + # Disable it by default everywhere else. + noconfigdirs="$noconfigdirs target-libmudflap" + ;; + esac +fi + +# Disable libgomp on non POSIX hosted systems. +if test x$enable_libgomp = x ; then + # Enable libgomp by default on hosted POSIX systems. + case "${target}" in + *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) + ;; + *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*) + ;; + *-*-solaris2* | *-*-irix6* | *-*-osf* | *-*-hpux11*) + ;; + *-*-darwin* | *-*-aix*) + ;; + *) + noconfigdirs="$noconfigdirs target-libgomp" + ;; + esac +fi + +# Disable libitm on unsupported systems. +if test -d ${srcdir}/libitm; then + if test x$enable_libitm = x; then + AC_MSG_CHECKING([for libitm support]) + if (srcdir=${srcdir}/libitm; \ + . ${srcdir}/configure.tgt; \ + test -n "$UNSUPPORTED") + then + AC_MSG_RESULT([no]) + noconfigdirs="$noconfigdirs target-libitm" + else + AC_MSG_RESULT([yes]) + fi + fi +fi + +# Disable libssp for some systems. +case "${target}" in + avr-*-*) + # No hosted I/O support. + noconfigdirs="$noconfigdirs target-libssp" + ;; + powerpc-*-aix* | rs6000-*-aix*) + noconfigdirs="$noconfigdirs target-libssp" + ;; + rl78-*-*) + # libssp uses a misaligned load to trigger a fault, but the RL78 + # doesn't fault for those - instead, it gives a build-time error + # for explicit misaligned loads. + noconfigdirs="$noconfigdirs target-libssp" + ;; +esac + +# Disable libstdc++-v3 for some systems. +case "${target}" in + *-*-vxworks*) + # VxWorks uses the Dinkumware C++ library. + noconfigdirs="$noconfigdirs target-libstdc++-v3" + ;; + arm*-wince-pe*) + # the C++ libraries don't build on top of CE's C libraries + noconfigdirs="$noconfigdirs target-libstdc++-v3" + ;; + avr-*-*) + noconfigdirs="$noconfigdirs target-libstdc++-v3" + ;; +esac + +# Disable Fortran for some systems. +case "${target}" in + mmix-*-*) + # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>. + unsupported_languages="$unsupported_languages fortran" + ;; +esac + +# Disable Java if libffi is not supported. +case "${target}" in + alpha*-*-*) + ;; + arm*-*-*) + ;; + cris-*-*) + ;; + frv-*-*) + ;; + hppa*-*-linux*) + ;; + hppa*-*-hpux*) + ;; + i?86-*-*) + ;; + ia64*-*-*) + ;; + m32r*-*-*) + ;; + m68k-*-*) + ;; + mips-sgi-irix6.* | mips*-*-rtems*) + ;; + mips*-*-linux*) + ;; + powerpc*-*-linux*) + ;; + powerpc-*-darwin*) + ;; + powerpc-*-aix* | rs6000-*-aix*) + ;; + powerpc-*-freebsd*) + ;; + powerpc64-*-freebsd*) + ;; + powerpc*-*-rtems*) + ;; + s390-*-* | s390x-*-*) + ;; + sh-*-* | sh[[34]]*-*-*) + ;; + sh64-*-* | sh5*-*-*) + ;; + sparc*-*-*) + ;; + x86_64-*-*) + ;; + *-*-*) + unsupported_languages="$unsupported_languages java" + ;; +esac + +# Disable Java, libgcj or related libraries for some systems. +case "${target}" in + powerpc-*-darwin*) + ;; + i[[3456789]]86-*-darwin*) + ;; + x86_64-*-darwin[[912]]*) + ;; + *-*-darwin*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + *-*-netware*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + *-*-rtems*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + *-*-tpf*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + *-*-uclinux*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + *-*-vxworks*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + alpha*-*-*vms*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + arm-wince-pe) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + arm*-*-symbianelf*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + bfin-*-*) + noconfigdirs="$noconfigdirs target-boehm-gc" + ;; + cris-*-* | crisv32-*-*) + unsupported_languages="$unsupported_languages java" + case "${target}" in + *-*-linux*) + ;; + *) # See PR46792 regarding target-libffi. + noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";; + esac + ;; + hppa*64*-*-linux*) + # In this case, it's because the hppa64-linux target is for + # the kernel only at this point and has no libc, and thus no + # headers, crt*.o, etc., all of which are needed by these. + unsupported_languages="$unsupported_languages java" + ;; + hppa*64*-*-hpux*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + hppa*-hp-hpux11*) + ;; + hppa*-*-hpux*) + # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't + # build on HP-UX 10.20. + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + ia64*-*-*vms*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + i[[3456789]]86-w64-mingw*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + i[[3456789]]86-*-mingw*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + x86_64-*-mingw*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + mmix-*-*) + noconfigdirs="$noconfigdirs target-libffi target-boehm-gc" + ;; + powerpc-*-aix*) + # copied from rs6000-*-* entry + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + rs6000-*-aix*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + mips*-*-irix6*) + # Linking libjava exceeds command-line length limits on at least + # IRIX 6.2, but not on IRIX 6.5. + # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham + # <oldham@codesourcery.com> + noconfigdirs="$noconfigdirs ${libgcj}" + ;; + *-*-lynxos*) + noconfigdirs="$noconfigdirs ${libgcj}" + ;; +esac + +# Default libgloss CPU subdirectory. +libgloss_dir="$target_cpu" + +case "${target}" in + sh*-*-pe|mips*-*-pe|*arm-wince-pe) + libgloss_dir=wince + ;; + arm*-*-*) + libgloss_dir=arm + ;; + cris-*-* | crisv32-*-*) + libgloss_dir=cris + ;; + hppa*-*-*) + libgloss_dir=pa + ;; + i[[3456789]]86-*-*) + libgloss_dir=i386 + ;; + m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*) + libgloss_dir=m68hc11 + ;; + m68*-*-* | fido-*-*) + libgloss_dir=m68k + ;; + mips*-*-*) + libgloss_dir=mips + ;; + powerpc*-*-*) + libgloss_dir=rs6000 + ;; + sparc*-*-*) + libgloss_dir=sparc + ;; +esac + +# Disable newlib and libgloss for various target OSes. +case "${target}" in + alpha*-dec-osf*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + i[[3456789]]86-*-linux*) + # This section makes it possible to build newlib natively on linux. + # If we are using a cross compiler then don't configure newlib. + if test x${is_cross_compiler} != xno ; then + noconfigdirs="$noconfigdirs target-newlib" + fi + noconfigdirs="$noconfigdirs target-libgloss" + # If we are not using a cross compiler, do configure newlib. + # Note however, that newlib will only be configured in this situation + # if the --with-newlib option has been given, because otherwise + # 'target-newlib' will appear in skipdirs. + ;; + i[[3456789]]86-*-rdos*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + sh*-*-pe|mips*-*-pe|arm-wince-pe) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + sparc-*-sunos4*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-aix*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-beos*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-chorusos) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-dragonfly*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-freebsd*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-lynxos*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-mingw*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-netbsd*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-netware*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-tpf*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-uclinux*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + *-*-vxworks*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; +esac + +case "${target}" in + *-*-chorusos) + ;; + powerpc-*-darwin*) + noconfigdirs="$noconfigdirs ld gas gdb gprof" + noconfigdirs="$noconfigdirs sim target-rda" + ;; + i[[3456789]]86-*-darwin*) + noconfigdirs="$noconfigdirs ld gprof" + noconfigdirs="$noconfigdirs sim target-rda" + ;; + x86_64-*-darwin[[912]]*) + noconfigdirs="$noconfigdirs ld gas gprof" + noconfigdirs="$noconfigdirs sim target-rda" + ;; + *-*-darwin*) + noconfigdirs="$noconfigdirs ld gas gdb gprof" + noconfigdirs="$noconfigdirs sim target-rda" + ;; + *-*-dragonfly*) + ;; + *-*-freebsd*) + if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \ + && test -f /usr/local/include/gmp.h; then + with_gmp=/usr/local + fi + ;; + *-*-kaos*) + # Remove unsupported stuff on all kaOS configurations. + noconfigdirs="$noconfigdirs target-libgloss" + ;; + *-*-netbsd*) + ;; + *-*-netware*) + ;; + *-*-rtems*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + # The tpf target doesn't support gdb yet. + *-*-tpf*) + noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl" + ;; + *-*-uclinux*) + noconfigdirs="$noconfigdirs target-rda" + ;; + *-*-vxworks*) + ;; + alpha*-dec-osf*) + # ld works, but does not support shared libraries. + # gas doesn't generate exception information. + noconfigdirs="$noconfigdirs gas ld" + ;; + alpha*-*-*vms*) + noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss" + ;; + alpha*-*-*) + # newlib is not 64 bit ready + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; + sh*-*-pe|mips*-*-pe|*arm-wince-pe) + noconfigdirs="$noconfigdirs tcl tk itcl libgui sim" + ;; + arc-*-*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + arm-*-pe*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + arm-*-riscix*) + noconfigdirs="$noconfigdirs ld target-libgloss" + ;; + avr-*-rtems*) + ;; + avr-*-*) + if test x${with_avrlibc} = xyes; then + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + fi + ;; + c4x-*-* | tic4x-*-*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + tic54x-*-*) + noconfigdirs="$noconfigdirs target-libgloss gdb" + ;; + d10v-*-*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + d30v-*-*) + noconfigdirs="$noconfigdirs gdb" + ;; + fr30-*-elf*) + noconfigdirs="$noconfigdirs gdb" + ;; + moxie-*-*) + noconfigdirs="$noconfigdirs gprof" + ;; + h8300*-*-*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + h8500-*-*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + hppa1.1-*-osf* | hppa1.1-*-bsd* ) + ;; + hppa*64*-*-linux*) + ;; + hppa*-*-linux*) + ;; + hppa*-*-*elf* | \ + hppa*-*-lites* | \ + hppa*-*-openbsd* | \ + hppa*64*-*-*) + ;; + hppa*-hp-hpux11*) + noconfigdirs="$noconfigdirs ld" + ;; + hppa*-*-pro*) + ;; + hppa*-*-*) + noconfigdirs="$noconfigdirs ld" + ;; + i960-*-*) + noconfigdirs="$noconfigdirs gdb" + ;; + ia64*-*-elf*) + # No gdb support yet. + noconfigdirs="$noconfigdirs readline libgui itcl gdb" + ;; + ia64*-**-hpux*) + # No ld support yet. + noconfigdirs="$noconfigdirs libgui itcl ld" + ;; + ia64*-*-*vms*) + # No gdb or ld support yet. + noconfigdirs="$noconfigdirs readline libgui itcl gdb ld" + ;; + i[[3456789]]86-w64-mingw*) + ;; + i[[3456789]]86-*-mingw*) + target_configdirs="$target_configdirs target-winsup" + ;; + *-*-cygwin*) + target_configdirs="$target_configdirs target-libtermcap target-winsup" + noconfigdirs="$noconfigdirs target-libgloss" + # always build newlib if winsup directory is present. + if test -d "$srcdir/winsup/cygwin"; then + skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` + elif test -d "$srcdir/newlib"; then + echo "Warning: winsup/cygwin is missing so newlib can't be built." + fi + ;; + i[[3456789]]86-*-pe) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + i[[3456789]]86-*-sco3.2v5*) + # The linker does not yet know about weak symbols in COFF, + # and is not configured to handle mixed ELF and COFF. + noconfigdirs="$noconfigdirs ld target-libgloss" + ;; + i[[3456789]]86-*-sco*) + noconfigdirs="$noconfigdirs gprof target-libgloss" + ;; + i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + i[[3456789]]86-*-sysv4*) + noconfigdirs="$noconfigdirs target-libgloss" + ;; + i[[3456789]]86-*-beos*) + noconfigdirs="$noconfigdirs gdb" + ;; + i[[3456789]]86-*-rdos*) + noconfigdirs="$noconfigdirs gdb" + ;; + mmix-*-*) + noconfigdirs="$noconfigdirs gdb" + ;; + mt-*-*) + noconfigdirs="$noconfigdirs sim" + ;; + powerpc-*-aix*) + # copied from rs6000-*-* entry + noconfigdirs="$noconfigdirs gprof" + ;; + powerpc*-*-winnt* | powerpc*-*-pe*) + target_configdirs="$target_configdirs target-winsup" + noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl" + # always build newlib. + skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` + ;; + # This is temporary until we can link against shared libraries + powerpcle-*-solaris*) + noconfigdirs="$noconfigdirs gdb sim tcl tk itcl" + ;; + powerpc-*-beos*) + noconfigdirs="$noconfigdirs gdb" + ;; + rs6000-*-lynxos*) + noconfigdirs="$noconfigdirs gprof" + ;; + rs6000-*-aix*) + noconfigdirs="$noconfigdirs gprof" + ;; + rs6000-*-*) + noconfigdirs="$noconfigdirs gprof" + ;; + m68k-apollo-*) + noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss" + ;; + microblaze*) + noconfigdirs="$noconfigdirs gprof" + ;; + mips*-sde-elf*) + if test x$with_newlib = xyes; then + noconfigdirs="$noconfigdirs gprof" + fi + ;; + mips*-*-irix5*) + noconfigdirs="$noconfigdirs gprof target-libgloss" + ;; + mips*-*-irix6*) + noconfigdirs="$noconfigdirs gprof target-libgloss" + ;; + mips*-*-bsd*) + noconfigdirs="$noconfigdirs gprof target-libgloss" + ;; + mips*-*-linux*) + ;; + mips*-*-*) + noconfigdirs="$noconfigdirs gprof" + ;; + sh-*-* | sh64-*-*) + case "${target}" in + sh*-*-elf) + ;; + *) + noconfigdirs="$noconfigdirs target-libgloss" ;; + esac + ;; + sparc-*-sunos4*) + if test x${is_cross_compiler} = xno ; then + use_gnu_ld=no + fi + ;; + tic6x-*-*) + noconfigdirs="$noconfigdirs sim" + ;; + tilepro-*-* | tilegx-*-*) + noconfigdirs="$noconfigdirs sim" + ;; + v810-*-*) + noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss" + ;; + vax-*-*) + noconfigdirs="$noconfigdirs target-newlib target-libgloss" + ;; +esac + +# If we aren't building newlib, then don't build libgloss, since libgloss +# depends upon some newlib header files. +case "${noconfigdirs}" in + *target-libgloss*) ;; + *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;; +esac + +# Work in distributions that contain no compiler tools, like Autoconf. +host_makefile_frag=/dev/null +if test -d ${srcdir}/config ; then +case "${host}" in + i[[3456789]]86-*-msdosdjgpp*) + host_makefile_frag="config/mh-djgpp" + ;; + *-cygwin*) + ACX_CHECK_CYGWIN_CAT_WORKS + host_makefile_frag="config/mh-cygwin" + ;; + *-mingw*) + host_makefile_frag="config/mh-mingw" + ;; + hppa*-hp-hpux10*) + host_makefile_frag="config/mh-pa-hpux10" + ;; + hppa*-hp-hpux*) + host_makefile_frag="config/mh-pa" + ;; + hppa*-*) + host_makefile_frag="config/mh-pa" + ;; + *-*-darwin*) + host_makefile_frag="config/mh-darwin" + ;; + powerpc-*-aix*) + host_makefile_frag="config/mh-ppc-aix" + ;; + rs6000-*-aix*) + host_makefile_frag="config/mh-ppc-aix" + ;; +esac +fi + +if test "${build}" != "${host}" ; then + AR_FOR_BUILD=${AR_FOR_BUILD-ar} + AS_FOR_BUILD=${AS_FOR_BUILD-as} + CC_FOR_BUILD=${CC_FOR_BUILD-gcc} + CXX_FOR_BUILD=${CXX_FOR_BUILD-g++} + GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj} + GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran} + GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo} + DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool} + LD_FOR_BUILD=${LD_FOR_BUILD-ld} + NM_FOR_BUILD=${NM_FOR_BUILD-nm} + RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib} + WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres} + WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc} +else + AR_FOR_BUILD="\$(AR)" + AS_FOR_BUILD="\$(AS)" + CC_FOR_BUILD="\$(CC)" + CXX_FOR_BUILD="\$(CXX)" + GCJ_FOR_BUILD="\$(GCJ)" + GFORTRAN_FOR_BUILD="\$(GFORTRAN)" + GOC_FOR_BUILD="\$(GOC)" + DLLTOOL_FOR_BUILD="\$(DLLTOOL)" + LD_FOR_BUILD="\$(LD)" + NM_FOR_BUILD="\$(NM)" + RANLIB_FOR_BUILD="\$(RANLIB)" + WINDRES_FOR_BUILD="\$(WINDRES)" + WINDMC_FOR_BUILD="\$(WINDMC)" +fi + +AC_PROG_CC +AC_PROG_CXX + +# We must set the default linker to the linker used by gcc for the correct +# operation of libtool. If LD is not defined and we are using gcc, try to +# set the LD default to the ld used by gcc. +if test -z "$LD"; then + if test "$GCC" = yes; then + case $build in + *-*-mingw*) + gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;; + *) + gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;; + esac + case $gcc_prog_ld in + # Accept absolute paths. + [[\\/]* | [A-Za-z]:[\\/]*)] + LD="$gcc_prog_ld" ;; + esac + fi +fi + +ACX_PROG_GNAT +ACX_PROG_CMP_IGNORE_INITIAL + +AC_ARG_ENABLE([bootstrap], +[AS_HELP_STRING([--enable-bootstrap], + [enable bootstrapping @<:@yes if native build@:>@])],, +enable_bootstrap=default) + +# Issue errors and warnings for invalid/strange bootstrap combinations. +if test -r $srcdir/gcc/configure; then + have_compiler=yes +else + have_compiler=no +fi + +case "$have_compiler:$host:$target:$enable_bootstrap" in + *:*:*:no) ;; + + # Default behavior. Enable bootstrap if we have a compiler + # and we are in a native configuration. + yes:$build:$build:default) + enable_bootstrap=yes ;; + + *:*:*:default) + enable_bootstrap=no ;; + + # We have a compiler and we are in a native configuration, bootstrap is ok + yes:$build:$build:yes) + ;; + + # Other configurations, but we have a compiler. Assume the user knows + # what he's doing. + yes:*:*:yes) + AC_MSG_WARN([trying to bootstrap a cross compiler]) + ;; + + # No compiler: if they passed --enable-bootstrap explicitly, fail + no:*:*:yes) + AC_MSG_ERROR([cannot bootstrap without a compiler]) ;; + + # Fail if wrong command line + *) + AC_MSG_ERROR([invalid option for --enable-bootstrap]) + ;; +esac + +# See if we are building gcc with C++. +AC_ARG_ENABLE(build-with-cxx, +[AS_HELP_STRING([--enable-build-with-cxx], + [build with C++ compiler instead of C compiler])], +ENABLE_BUILD_WITH_CXX=$enableval, +ENABLE_BUILD_WITH_CXX=no) + +# Build stage1 with C and build stages 2 and 3 with C++. +AC_ARG_ENABLE(build-poststage1-with-cxx, +[AS_HELP_STRING([--enable-build-poststage1-with-cxx], + [build stages 2 and 3 with C++, not C])], +ENABLE_BUILD_POSTSTAGE1_WITH_CXX=$enableval, +ENABLE_BUILD_POSTSTAGE1_WITH_CXX=yes) + +# Used for setting $lt_cv_objdir +_LT_CHECK_OBJDIR + +# Check for GMP, MPFR and MPC +gmplibs="-lmpc -lmpfr -lgmp" +gmpinc= +have_gmp=no + +# Specify a location for mpc +# check for this first so it ends up on the link line before mpfr. +AC_ARG_WITH(mpc, +[AS_HELP_STRING([--with-mpc=PATH], + [specify prefix directory for installed MPC package. + Equivalent to --with-mpc-include=PATH/include + plus --with-mpc-lib=PATH/lib])]) +AC_ARG_WITH(mpc-include, +[AS_HELP_STRING([--with-mpc-include=PATH], + [specify directory for installed MPC include files])]) +AC_ARG_WITH(mpc-lib, +[AS_HELP_STRING([--with-mpc-lib=PATH], + [specify directory for the installed MPC library])]) + +if test "x$with_mpc" != x; then + gmplibs="-L$with_mpc/lib $gmplibs" + gmpinc="-I$with_mpc/include $gmpinc" +fi +if test "x$with_mpc_include" != x; then + gmpinc="-I$with_mpc_include $gmpinc" +fi +if test "x$with_mpc_lib" != x; then + gmplibs="-L$with_mpc_lib $gmplibs" +fi +if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then + gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs" + gmpinc='-I$$s/mpc/src '"$gmpinc" + # Do not test the mpc version. Assume that it is sufficient, since + # it is in the source tree, and the library has not been built yet + # but it would be included on the link line in the version check below + # hence making the test fail. + have_gmp=yes +fi + +# Specify a location for mpfr +# check for this first so it ends up on the link line before gmp. +AC_ARG_WITH(mpfr-dir, +[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])], +[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed. +Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])]) + +AC_ARG_WITH(mpfr, +[AS_HELP_STRING([--with-mpfr=PATH], + [specify prefix directory for installed MPFR package. + Equivalent to --with-mpfr-include=PATH/include + plus --with-mpfr-lib=PATH/lib])]) +AC_ARG_WITH(mpfr-include, +[AS_HELP_STRING([--with-mpfr-include=PATH], + [specify directory for installed MPFR include files])]) +AC_ARG_WITH(mpfr-lib, +[AS_HELP_STRING([--with-mpfr-lib=PATH], + [specify directory for the installed MPFR library])]) + +if test "x$with_mpfr" != x; then + gmplibs="-L$with_mpfr/lib $gmplibs" + gmpinc="-I$with_mpfr/include $gmpinc" +fi +if test "x$with_mpfr_include" != x; then + gmpinc="-I$with_mpfr_include $gmpinc" +fi +if test "x$with_mpfr_lib" != x; then + gmplibs="-L$with_mpfr_lib $gmplibs" +fi +if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then + gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs" + gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc" + extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir" + # Do not test the mpfr version. Assume that it is sufficient, since + # it is in the source tree, and the library has not been built yet + # but it would be included on the link line in the version check below + # hence making the test fail. + have_gmp=yes +fi + +# Specify a location for gmp +AC_ARG_WITH(gmp-dir, +[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])], +[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed. +Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])]) + +AC_ARG_WITH(gmp, +[AS_HELP_STRING([--with-gmp=PATH], + [specify prefix directory for the installed GMP package. + Equivalent to --with-gmp-include=PATH/include + plus --with-gmp-lib=PATH/lib])]) +AC_ARG_WITH(gmp-include, +[AS_HELP_STRING([--with-gmp-include=PATH], + [specify directory for installed GMP include files])]) +AC_ARG_WITH(gmp-lib, +[AS_HELP_STRING([--with-gmp-lib=PATH], + [specify directory for the installed GMP library])]) + + +if test "x$with_gmp" != x; then + gmplibs="-L$with_gmp/lib $gmplibs" + gmpinc="-I$with_gmp/include $gmpinc" +fi +if test "x$with_gmp_include" != x; then + gmpinc="-I$with_gmp_include $gmpinc" +fi +if test "x$with_gmp_lib" != x; then + gmplibs="-L$with_gmp_lib $gmplibs" +fi +if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then + gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs" + gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc" + extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" + extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir" + # Do not test the gmp version. Assume that it is sufficient, since + # it is in the source tree, and the library has not been built yet + # but it would be included on the link line in the version check below + # hence making the test fail. + have_gmp=yes +fi + +if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then + have_gmp=yes + saved_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $gmpinc" + # Check for the recommended and required versions of GMP. + AC_MSG_CHECKING([for the correct version of gmp.h]) + AC_TRY_COMPILE([#include "gmp.h"],[ + #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) + #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) + #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0) + choke me + #endif + ], [AC_TRY_COMPILE([#include <gmp.h>],[ + #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c)) + #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL) + #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2) + choke me + #endif + ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], + [AC_MSG_RESULT([no]); have_gmp=no]) + + # If we have GMP, check the MPFR version. + if test x"$have_gmp" = xyes; then + # Check for the recommended and required versions of MPFR. + AC_MSG_CHECKING([for the correct version of mpfr.h]) + AC_TRY_COMPILE([#include <gmp.h> + #include <mpfr.h>],[ + #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1) + choke me + #endif + ], [AC_TRY_COMPILE([#include <gmp.h> + #include <mpfr.h>],[ + #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2) + choke me + #endif + ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], + [AC_MSG_RESULT([no]); have_gmp=no]) + fi + + # Check for the MPC header version. + if test x"$have_gmp" = xyes ; then + # Check for the recommended and required versions of MPC. + AC_MSG_CHECKING([for the correct version of mpc.h]) + AC_TRY_COMPILE([#include <mpc.h>],[ + #if MPC_VERSION < MPC_VERSION_NUM(0,8,0) + choke me + #endif + ], [AC_TRY_COMPILE([#include <mpc.h>],[ + #if MPC_VERSION < MPC_VERSION_NUM(0,8,1) + choke me + #endif + ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])], + [AC_MSG_RESULT([no]); have_gmp=no]) + fi + + # Now check the MPFR library. + if test x"$have_gmp" = xyes; then + saved_LIBS="$LIBS" + LIBS="$LIBS $gmplibs" + AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries]) + AC_TRY_LINK([#include <mpc.h>],[ + mpfr_t n; + mpfr_t x; + mpc_t c; + int t; + mpfr_init (n); + mpfr_init (x); + mpfr_atan2 (n, n, x, GMP_RNDN); + mpfr_erfc (n, x, GMP_RNDN); + mpfr_subnormalize (x, t, GMP_RNDN); + mpfr_clear(n); + mpfr_clear(x); + mpc_init2 (c, 53); + mpc_set_ui_ui (c, 1, 1, MPC_RNDNN); + mpc_cosh (c, c, MPC_RNDNN); + mpc_pow (c, c, c, MPC_RNDNN); + mpc_acosh (c, c, MPC_RNDNN); + mpc_clear (c); + ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) + LIBS="$saved_LIBS" + fi + + CFLAGS="$saved_CFLAGS" + +# The library versions listed in the error message below should match +# the HARD-minimums enforced above. + if test x$have_gmp != xyes; then + AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+. +Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify +their locations. Source code for these libraries can be found at +their respective hosting sites as well as at +ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also +http://gcc.gnu.org/install/prerequisites.html for additional info. If +you obtained GMP, MPFR and/or MPC from a vendor distribution package, +make sure that you have installed both the libraries and the header +files. They may be located in separate packages.]) + fi +fi + +# Flags needed for both GMP, MPFR and/or MPC. +AC_SUBST(gmplibs) +AC_SUBST(gmpinc) +AC_SUBST(extra_mpfr_configure_flags) +AC_SUBST(extra_mpc_gmp_configure_flags) +AC_SUBST(extra_mpc_mpfr_configure_flags) + +# Allow host libstdc++ to be specified for static linking with PPL. +AC_ARG_WITH(host-libstdcxx, +[AS_HELP_STRING([--with-host-libstdcxx=L], + [use linker arguments L to link with libstdc++ + when linking with PPL])]) + +case $with_host_libstdcxx in + no|yes) + AC_MSG_ERROR([-with-host-libstdcxx needs an argument]) + ;; +esac + +# Linker flags to use for stage1 or when not boostrapping. +AC_ARG_WITH(stage1-ldflags, +[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], +[if test "$withval" = "no" -o "$withval" = "yes"; then + stage1_ldflags= + else + stage1_ldflags=$withval + fi], +[stage1_ldflags=]) +AC_SUBST(stage1_ldflags) + +# Libraries to use for stage1 or when not bootstrapping. +AC_ARG_WITH(stage1-libs, +[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])], +[if test "$withval" = "no" -o "$withval" = "yes"; then + stage1_libs= + else + stage1_libs=$withval + fi], +[stage1_libs=$with_host_libstdcxx]) +AC_SUBST(stage1_libs) + +# Libraries to use for stage2 and later builds. This defaults to the +# argument passed to --with-host-libstdcxx. +AC_ARG_WITH(boot-libs, +[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])], +[if test "$withval" = "no" -o "$withval" = "yes"; then + poststage1_libs= + else + poststage1_libs=$withval + fi], +[poststage1_libs=$with_host_libstdcxx]) +AC_SUBST(poststage1_libs) + +# Linker flags to use for stage2 and later builds. +AC_ARG_WITH(boot-ldflags, +[AS_HELP_STRING([--with-boot-ldflags=FLAGS], + [linker flags for stage2 and later])], +[if test "$withval" = "no" -o "$withval" = "yes"; then + poststage1_ldflags= + else + poststage1_ldflags=$withval + fi], +[poststage1_ldflags= + # In stages 2 and 3, default to linking libstdc++ and libgcc + # statically. But if the user explicitly specified the libraries to + # use, trust that they are doing what they want. + if test "$poststage1_libs" = ""; then + poststage1_ldflags="-static-libstdc++ -static-libgcc" + fi]) +AC_SUBST(poststage1_ldflags) + +# Check for PPL +ppllibs= +pplinc= +pwllib= + +AC_ARG_WITH(ppl, +[AS_HELP_STRING([--with-ppl=PATH], + [specify prefix directory for the installed PPL package. + Equivalent to --with-ppl-include=PATH/include + plus --with-ppl-lib=PATH/lib])]) +AC_ARG_WITH(ppl-include, +[AS_HELP_STRING([--with-ppl-include=PATH], + [specify directory for installed PPL include files])]) +AC_ARG_WITH(ppl-lib, +[AS_HELP_STRING([--with-ppl-lib=PATH], + [specify directory for the installed PPL library])]) + +AC_ARG_ENABLE(ppl-version-check, +[AS_HELP_STRING([--disable-ppl-version-check], + [disable check for PPL version])]) + +case $with_ppl in + yes | no | "") + ;; + *) + ppllibs="-L$with_ppl/lib" + pplinc="-I$with_ppl/include $pplinc" + if test -d "$with_ppl/lib" && test -d "$with_ppl/include"; then + with_ppl=yes + else + AC_MSG_ERROR([cannot find directories "$with_ppl/lib" or "$with_ppl/include"]) + fi + ;; +esac + +if test x"$with_ppl_include" != x; then + pplinc="-I$with_ppl_include $pplinc" + with_ppl=yes +fi + +if test "x$with_ppl_lib" != x; then + ppllibs="-L$with_ppl_lib" + with_ppl=yes +fi + +if test x"$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then + if test x"$enable_watchdog" = xyes; then + pwllib="-lpwl" + fi + ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir" + pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C ' + enable_ppl_version_check=no + with_ppl=yes +fi + +if test "x$with_ppl" != xno; then + if test "x$pwllib" = x; then + saved_LIBS="$LIBS" + LIBS="$LIBS $ppllibs -lstdc++ -lm" + AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"]) + LIBS="$saved_LIBS" + fi + + ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx" + + if test "$enable_ppl_version_check" != no; then + saved_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $pplinc $gmpinc" + AC_MSG_CHECKING([for version 0.11 (revision 0 or later) of PPL]) + AC_TRY_COMPILE([#include "ppl_c.h"],[ + #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 11 + choke me + #endif + ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ]) + CFLAGS="$saved_CFLAGS" + fi +fi + +# Flags needed for PPL +AC_SUBST(ppllibs) +AC_SUBST(pplinc) + + +# Check for CLOOG + +dnl Provide configure switches and initialize clooginc & clooglibs +dnl with user input. +CLOOG_INIT_FLAGS +if test "x$with_ppl" = "xno"; then + dnl Only execute fail-action, if CLooG has been requested. + CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no]) + if test "${graphite_requested}" = yes; then + AC_MSG_ERROR([Unable to find a usable PPL. See config.log for details.]) + fi + with_cloog=no +fi +if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \ + && test "x${with_cloog_lib}" = x && test -d ${srcdir}/cloog; then + clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' ' + clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include ' +fi +if test "x$with_cloog" != "xno"; then + dnl The minimal version of CLooG required for Graphite. + dnl + dnl If we use CLooG-Legacy, the provided version information is + dnl ignored. + CLOOG_CHECK_VERSION(0,16,1) + + dnl Only execute fail-action, if CLooG has been requested. + CLOOG_IF_FAILED([ + AC_MSG_ERROR([Unable to find a usable CLooG. See config.log for details.])]) +fi + +# Check for LTO support. +AC_ARG_ENABLE(lto, +[AS_HELP_STRING([--enable-lto], [enable link time optimization support])], +enable_lto=$enableval, +enable_lto=yes; default_enable_lto=yes) + +ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always. + build_lto_plugin=yes +],[if test x"$default_enable_lto" = x"yes" ; then + case $target in + *-apple-darwin9* | *-cygwin* | *-mingw*) ;; + # On other non-ELF platforms, LTO has yet to be validated. + *) enable_lto=no ;; + esac + else + # Apart from ELF platforms, only Windows and Darwin support LTO so far. + # It would also be nice to check the binutils support, but we don't + # have gcc_GAS_CHECK_FEATURE available here. For now, we'll just + # warn during gcc/ subconfigure; unless you're bootstrapping with + # -flto it won't be needed until after installation anyway. + case $target in + *-cygwin* | *-mingw* | *-apple-darwin*) ;; + *) if test x"$enable_lto" = x"yes"; then + AC_MSG_ERROR([LTO support is not enabled for this target.]) + fi + ;; + esac + fi + # Among non-ELF, only Windows platforms support the lto-plugin so far. + # Build it unless LTO was explicitly disabled. + case $target in + *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;; + *) ;; + esac +]) + + +# By default, C is the only stage 1 language. +stage1_languages=,c, + +# Target libraries that we bootstrap. +bootstrap_target_libs=,target-libgcc, + +# Figure out what language subdirectories are present. +# Look if the user specified --enable-languages="..."; if not, use +# the environment variable $LANGUAGES if defined. $LANGUAGES might +# go away some day. +# NB: embedded tabs in this IF block -- do not untabify +if test -d ${srcdir}/gcc; then + if test x"${enable_languages+set}" != xset; then + if test x"${LANGUAGES+set}" = xset; then + enable_languages="${LANGUAGES}" + echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2 + else + enable_languages=all + fi + else + if test x"${enable_languages}" = x || + test x"${enable_languages}" = xyes; + then + echo configure.in: --enable-languages needs at least one language argument 1>&2 + exit 1 + fi + fi + enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'` + + # 'f95' is the old name for the 'fortran' language. We issue a warning + # and make the substitution. + case ,${enable_languages}, in + *,f95,*) + echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2 + enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'` + ;; + esac + + # If bootstrapping, then using --enable-build-with-cxx or + # --enable-build-poststage1-with-cxx requires enabling C++. + case ",$enable_languages,:,$ENABLE_BUILD_WITH_CXX,$ENABLE_BUILD_POSTSTAGE1_WITH_CXX,:$enable_bootstrap" in + *,c++,*:*:*) ;; + *:*,yes,*:yes) + if test -f ${srcdir}/gcc/cp/config-lang.in; then + enable_languages="${enable_languages},c++" + else + AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx or --enable-build-poststage1-with-cxx requires c++ sources]) + fi + ;; + esac + + # First scan to see if an enabled language requires some other language. + # We assume that a given config-lang.in will list all the language + # front ends it requires, even if some are required indirectly. + for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do + case ${lang_frag} in + ..) ;; + # The odd quoting in the next line works around + # an apparent bug in bash 1.12 on linux. + ${srcdir}/gcc/[[*]]/config-lang.in) ;; + *) + # From the config-lang.in, get $language, $lang_requires, and + # $lang_requires_boot_languages. + language= + lang_requires= + lang_requires_boot_languages= + . ${lang_frag} + for other in ${lang_requires} ${lang_requires_boot_languages}; do + case ,${enable_languages}, in + *,$other,*) ;; + *,all,*) ;; + *,$language,*) + echo " \`$other' language required by \`$language'; enabling" 1>&2 + enable_languages="${enable_languages},${other}" + ;; + esac + done + for other in ${lang_requires_boot_languages} ; do + if test "$other" != "c"; then + case ,${enable_stage1_languages}, in + *,$other,*) ;; + *,all,*) ;; + *) + case ,${enable_languages}, in + *,$language,*) + echo " '$other' language required by '$language' in stage 1; enabling" 1>&2 + enable_stage1_languages="$enable_stage1_languages,${other}" + ;; + esac + ;; + esac + fi + done + ;; + esac + done + + new_enable_languages=,c, + + # If LTO is enabled, add the LTO front end. + extra_host_libiberty_configure_flags= + if test "$enable_lto" = "yes" ; then + case ,${enable_languages}, in + *,lto,*) ;; + *) enable_languages="${enable_languages},lto" ;; + esac + if test "${build_lto_plugin}" = "yes" ; then + configdirs="$configdirs lto-plugin" + extra_host_libiberty_configure_flags=--enable-shared + fi + fi + AC_SUBST(extra_host_libiberty_configure_flags) + + missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ ` + potential_languages=,c, + + enabled_target_libs= + disabled_target_libs= + + for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do + case ${lang_frag} in + ..) ;; + # The odd quoting in the next line works around + # an apparent bug in bash 1.12 on linux. + ${srcdir}/gcc/[[*]]/config-lang.in) ;; + *) + # From the config-lang.in, get $language, $target_libs, + # $lang_dirs, $boot_language, and $build_by_default + language= + target_libs= + lang_dirs= + subdir_requires= + boot_language=no + build_by_default=yes + . ${lang_frag} + if test x${language} = x; then + echo "${lang_frag} doesn't set \$language." 1>&2 + exit 1 + fi + + if test "$language" = "c++"; then + if test "$ENABLE_BUILD_WITH_CXX" = "yes" \ + || test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then + boot_language=yes + fi + fi + + case ,${enable_languages}, in + *,${language},*) + # Language was explicitly selected; include it. + add_this_lang=yes + ;; + *,all,*) + # 'all' was selected, select it if it is a default language + add_this_lang=${build_by_default} + ;; + *) + add_this_lang=no + ;; + esac + + # Disable languages that need other directories if these aren't available. + for i in $subdir_requires; do + test -f "$srcdir/gcc/$i/config-lang.in" && continue + case ,${enable_languages}, in + *,${language},*) + # Specifically requested language; tell them. + AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing]) + ;; + *) + # Silently disable. + add_this_lang=unsupported + ;; + esac + done + + # Disable Ada if no preexisting GNAT is available. + case ,${enable_languages},:${language}:${have_gnat} in + *,${language},*:ada:no) + # Specifically requested language; tell them. + AC_MSG_ERROR([GNAT is required to build $language]) + ;; + *:ada:no) + # Silently disable. + add_this_lang=unsupported + ;; + esac + + # Disable a language that is unsupported by the target. + case " $unsupported_languages " in + *" $language "*) + add_this_lang=unsupported + ;; + esac + + case $add_this_lang in + unsupported) + # Remove language-dependent dirs. + disabled_target_libs="$disabled_target_libs $target_libs" + noconfigdirs="$noconfigdirs $lang_dirs" + ;; + no) + # Remove language-dependent dirs; still show language as supported. + disabled_target_libs="$disabled_target_libs $target_libs" + noconfigdirs="$noconfigdirs $lang_dirs" + potential_languages="${potential_languages}${language}," + ;; + yes) + new_enable_languages="${new_enable_languages}${language}," + potential_languages="${potential_languages}${language}," + missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"` + enabled_target_libs="$enabled_target_libs $target_libs" + case "${boot_language}:,$enable_stage1_languages," in + yes:* | *:*,$language,* | *:*,yes, | *:*,all,) + # Add to (comma-separated) list of stage 1 languages. + case ",$stage1_languages," in + *,$language,* | ,yes, | ,all,) ;; + *) stage1_languages="${stage1_languages}${language}," ;; + esac + # We need to bootstrap any supporting libraries. + bootstrap_target_libs="${bootstrap_target_libs}${target_libs}," + ;; + esac + ;; + esac + ;; + esac + done + + # Add target libraries which are only needed for disabled languages + # to noconfigdirs. + if test -n "$disabled_target_libs"; then + for dir in $disabled_target_libs; do + case " $enabled_target_libs " in + *" ${dir} "*) ;; + *) noconfigdirs="$noconfigdirs $dir" ;; + esac + done + fi + + AC_ARG_ENABLE(stage1-languages, + [AS_HELP_STRING([[--enable-stage1-languages[=all]]], + [choose additional languages to build during + stage1. Mostly useful for compiler development])], + [case ,${enable_stage1_languages}, in + ,no,|,,) + # Set it to something that will have no effect in the loop below + enable_stage1_languages=c ;; + ,yes,) + enable_stage1_languages=`echo $new_enable_languages | \ + sed -e "s/^,//" -e "s/,$//" ` ;; + *,all,*) + enable_stage1_languages=`echo ,$enable_stage1_languages, | \ + sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;; + esac + + # Add "good" languages from enable_stage1_languages to stage1_languages, + # while "bad" languages go in missing_languages. Leave no duplicates. + for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do + case $potential_languages in + *,$i,*) + case $stage1_languages in + *,$i,*) ;; + *) stage1_languages="$stage1_languages$i," ;; + esac ;; + *) + case $missing_languages in + *,$i,*) ;; + *) missing_languages="$missing_languages$i," ;; + esac ;; + esac + done]) + + # Remove leading/trailing commas that were added for simplicity + potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"` + missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"` + stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"` + new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"` + + if test "x$missing_languages" != x; then + AC_MSG_ERROR([ +The following requested languages could not be built: ${missing_languages} +Supported languages are: ${potential_languages}]) + fi + if test "x$new_enable_languages" != "x$enable_languages"; then + echo The following languages will be built: ${new_enable_languages} + enable_languages="$new_enable_languages" + fi + + AC_SUBST(stage1_languages) + ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" ` +fi + +# Handle --disable-<component> generically. +for dir in $configdirs $build_configdirs $target_configdirs ; do + dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g` + varname=`echo $dirname | sed -e s/+/_/g` + if eval test x\${enable_${varname}} "=" xno ; then + noconfigdirs="$noconfigdirs $dir" + fi +done + +# Check for Boehm's garbage collector +AC_ARG_ENABLE(objc-gc, +[AS_HELP_STRING([--enable-objc-gc], + [enable use of Boehm's garbage collector with the + GNU Objective-C runtime])], +[case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in + *,objc,*:*:yes:*target-boehm-gc*) + AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration]) + ;; +esac]) + +# Make sure we only build Boehm's garbage collector if required. +case ,${enable_languages},:${enable_objc_gc} in + *,objc,*:yes) + # Keep target-boehm-gc if requested for Objective-C. + ;; + *) + # Otherwise remove target-boehm-gc depending on target-libjava. + if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then + noconfigdirs="$noconfigdirs target-boehm-gc" + fi + ;; +esac + +# Disable libitm if we're not building C++ +case ,${enable_languages}, in + *,c++,*) ;; + *) + noconfigdirs="$noconfigdirs target-libitm" + ;; +esac + +# Remove the entries in $skipdirs and $noconfigdirs from $configdirs, +# $build_configdirs and $target_configdirs. +# If we have the source for $noconfigdirs entries, add them to $notsupp. + +notsupp="" +for dir in . $skipdirs $noconfigdirs ; do + dirname=`echo $dir | sed -e s/target-//g -e s/build-//g` + if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then + configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"` + if test -r $srcdir/$dirname/configure ; then + if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then + true + else + notsupp="$notsupp $dir" + fi + fi + fi + if test $dir != . && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then + build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"` + if test -r $srcdir/$dirname/configure ; then + if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then + true + else + notsupp="$notsupp $dir" + fi + fi + fi + if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then + target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"` + if test -r $srcdir/$dirname/configure ; then + if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then + true + else + notsupp="$notsupp $dir" + fi + fi + fi +done + +# Quietly strip out all directories which aren't configurable in this tree. +# This relies on all configurable subdirectories being autoconfiscated, which +# is now the case. +build_configdirs_all="$build_configdirs" +build_configdirs= +for i in ${build_configdirs_all} ; do + j=`echo $i | sed -e s/build-//g` + if test -f ${srcdir}/$j/configure ; then + build_configdirs="${build_configdirs} $i" + fi +done + +configdirs_all="$configdirs" +configdirs= +for i in ${configdirs_all} ; do + if test -f ${srcdir}/$i/configure ; then + configdirs="${configdirs} $i" + fi +done + +target_configdirs_all="$target_configdirs" +target_configdirs= +for i in ${target_configdirs_all} ; do + j=`echo $i | sed -e s/target-//g` + if test -f ${srcdir}/$j/configure ; then + target_configdirs="${target_configdirs} $i" + fi +done + +# Produce a warning message for the subdirs we can't configure. +# This isn't especially interesting in the Cygnus tree, but in the individual +# FSF releases, it's important to let people know when their machine isn't +# supported by the one or two programs in a package. + +if test -n "${notsupp}" && test -z "${norecursion}" ; then + # If $appdirs is non-empty, at least one of those directories must still + # be configured, or we error out. (E.g., if the gas release supports a + # specified target in some subdirs but not the gas subdir, we shouldn't + # pretend that all is well.) + if test -n "$appdirs" ; then + for dir in $appdirs ; do + if test -r $dir/Makefile.in ; then + if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then + appdirs="" + break + fi + if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then + appdirs="" + break + fi + fi + done + if test -n "$appdirs" ; then + echo "*** This configuration is not supported by this package." 1>&2 + exit 1 + fi + fi + # Okay, some application will build, or we don't care to check. Still + # notify of subdirs not getting built. + echo "*** This configuration is not supported in the following subdirectories:" 1>&2 + echo " ${notsupp}" 1>&2 + echo " (Any other directories should still work fine.)" 1>&2 +fi + +case "$host" in + *msdosdjgpp*) + enable_gdbtk=no ;; +esac + +# To find our prefix, in gcc_cv_tool_prefix. +ACX_TOOL_DIRS + +copy_dirs= + +AC_ARG_WITH([build-sysroot], + [AS_HELP_STRING([--with-build-sysroot=SYSROOT], + [use sysroot as the system root during the build])], + [if test x"$withval" != x ; then + SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval" + fi], + [SYSROOT_CFLAGS_FOR_TARGET=]) +AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET) + +AC_ARG_WITH([debug-prefix-map], + [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'], + [map A to B, C to D ... in debug information])], + [if test x"$withval" != x; then + DEBUG_PREFIX_CFLAGS_FOR_TARGET= + for debug_map in $withval; do + DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map" + done + fi], + [DEBUG_PREFIX_CFLAGS_FOR_TARGET=]) +AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET) + +# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS +# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS +# might also be empty (or "-g", if a non-GCC C++ compiler is in the path). +# We want to ensure that TARGET libraries (which we know are built with +# gcc) are built with "-O2 -g", so include those options when setting +# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET. +if test "x$CFLAGS_FOR_TARGET" = x; then + CFLAGS_FOR_TARGET=$CFLAGS + case " $CFLAGS " in + *" -O2 "*) ;; + *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;; + esac + case " $CFLAGS " in + *" -g "* | *" -g3 "*) ;; + *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;; + esac +fi +AC_SUBST(CFLAGS_FOR_TARGET) + +if test "x$CXXFLAGS_FOR_TARGET" = x; then + CXXFLAGS_FOR_TARGET=$CXXFLAGS + case " $CXXFLAGS " in + *" -O2 "*) ;; + *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;; + esac + case " $CXXFLAGS " in + *" -g "* | *" -g3 "*) ;; + *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;; + esac +fi +AC_SUBST(CXXFLAGS_FOR_TARGET) + +AC_SUBST(LDFLAGS_FOR_TARGET) + +# Handle --with-headers=XXX. If the value is not "yes", the contents of +# the named directory are copied to $(tooldir)/sys-include. +if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then + if test x${is_cross_compiler} = xno ; then + echo 1>&2 '***' --with-headers is only supported when cross compiling + exit 1 + fi + if test x"${with_headers}" != xyes ; then + x=${gcc_cv_tool_prefix} + copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include" + fi +fi + +# Handle --with-libs=XXX. If the value is not "yes", the contents of +# the name directories are copied to $(tooldir)/lib. Multiple directories +# are permitted. +if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then + if test x${is_cross_compiler} = xno ; then + echo 1>&2 '***' --with-libs is only supported when cross compiling + exit 1 + fi + if test x"${with_libs}" != xyes ; then + # Copy the libraries in reverse order, so that files in the first named + # library override files in subsequent libraries. + x=${gcc_cv_tool_prefix} + for l in ${with_libs}; do + copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}" + done + fi +fi + +# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate. +# +# This is done by determining whether or not the appropriate directory +# is available, and by checking whether or not specific configurations +# have requested that this magic not happen. +# +# The command line options always override the explicit settings in +# configure.in, and the settings in configure.in override this magic. +# +# If the default for a toolchain is to use GNU as and ld, and you don't +# want to do that, then you should use the --without-gnu-as and +# --without-gnu-ld options for the configure script. Similarly, if +# the default is to use the included zlib and you don't want to do that, +# you should use the --with-system-zlib option for the configure script. + +if test x${use_gnu_as} = x && + echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then + with_gnu_as=yes + extra_host_args="$extra_host_args --with-gnu-as" +fi + +if test x${use_gnu_ld} = x && + echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then + with_gnu_ld=yes + extra_host_args="$extra_host_args --with-gnu-ld" +fi + +if test x${use_included_zlib} = x && + echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then + : +else + with_system_zlib=yes + extra_host_args="$extra_host_args --with-system-zlib" +fi + +# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure +# can detect this case. + +if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then + with_newlib=yes + extra_host_args="$extra_host_args --with-newlib" +fi + +# Handle ${copy_dirs} +set fnord ${copy_dirs} +shift +while test $# != 0 ; do + if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then + : + else + echo Copying $1 to $2 + + # Use the install script to create the directory and all required + # parent directories. + if test -d $2 ; then + : + else + echo >config.temp + ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED + fi + + # Copy the directory, assuming we have tar. + # FIXME: Should we use B in the second tar? Not all systems support it. + (cd $1; tar -cf - .) | (cd $2; tar -xpf -) + + # It is the responsibility of the user to correctly adjust all + # symlinks. If somebody can figure out how to handle them correctly + # here, feel free to add the code. + + echo $1 > $2/COPIED + fi + shift; shift +done + +# Determine a target-dependent exec_prefix that the installed +# gcc will search in. Keep this list sorted by triplet, with +# the *-*-osname triplets last. +md_exec_prefix= +case "${target}" in + i[[34567]]86-pc-msdosdjgpp*) + md_exec_prefix=/dev/env/DJDIR/bin + ;; + *-*-hpux* | \ + *-*-nto-qnx* | \ + *-*-solaris2*) + md_exec_prefix=/usr/ccs/bin + ;; +esac + +extra_arflags_for_target= +extra_nmflags_for_target= +extra_ranlibflags_for_target= +target_makefile_frag=/dev/null +case "${target}" in + spu-*-*) + target_makefile_frag="config/mt-spu" + ;; + mips*-sde-elf*) + target_makefile_frag="config/mt-sde" + ;; + mipsisa*-*-elfoabi*) + target_makefile_frag="config/mt-mips-elfoabi" + ;; + mips*-*-*linux* | mips*-*-gnu*) + target_makefile_frag="config/mt-mips-gnu" + ;; + *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) + target_makefile_frag="config/mt-gnu" + ;; + *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*) + # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm + # commands to handle both 32-bit and 64-bit objects. These flags are + # harmless if we're using GNU nm or ar. + extra_arflags_for_target=" -X32_64" + extra_nmflags_for_target=" -B -X32_64" + ;; +esac + +alphaieee_frag=/dev/null +case $target in + alpha*-*-*) + # This just makes sure to use the -mieee option to build target libs. + # This should probably be set individually by each library. + alphaieee_frag="config/mt-alphaieee" + ;; +esac + +# If --enable-target-optspace always use -Os instead of -O2 to build +# the target libraries, similarly if it is not specified, use -Os +# on selected platforms. +ospace_frag=/dev/null +case "${enable_target_optspace}:${target}" in + yes:*) + ospace_frag="config/mt-ospace" + ;; + :d30v-*) + ospace_frag="config/mt-d30v" + ;; + :m32r-* | :d10v-* | :fr30-*) + ospace_frag="config/mt-ospace" + ;; + no:* | :*) + ;; + *) + echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2 + ;; +esac + +# Default to using --with-stabs for certain targets. +if test x${with_stabs} = x ; then + case "${target}" in + mips*-*-irix[[56]]*) + ;; + mips*-*-* | alpha*-*-osf*) + with_stabs=yes; + extra_host_args="${extra_host_args} --with-stabs" + ;; + esac +fi + +# Some systems (e.g., one of the i386-aix systems the gas testers are +# using) don't handle "\$" correctly, so don't use it here. +tooldir='${exec_prefix}'/${target_noncanonical} +build_tooldir=${tooldir} + +# Create a .gdbinit file which runs the one in srcdir +# and tells GDB to look there for source files. + +if test -r ${srcdir}/.gdbinit ; then + case ${srcdir} in + .) ;; + *) cat > ./.gdbinit <<EOF +# ${NO_EDIT} +dir ${srcdir} +dir . +source ${srcdir}/.gdbinit +EOF + ;; + esac +fi + +# Make sure that the compiler is able to generate an executable. If it +# can't, we are probably in trouble. We don't care whether we can run the +# executable--we might be using a cross compiler--we only care whether it +# can be created. At this point the main configure script has set CC. +we_are_ok=no +echo "int main () { return 0; }" > conftest.c +${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c +if test $? = 0 ; then + if test -s conftest || test -s conftest.exe ; then + we_are_ok=yes + fi +fi +case $we_are_ok in + no) + echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed." + echo 1>&2 "*** You must set the environment variable CC to a working compiler." + rm -f conftest* + exit 1 + ;; +esac +rm -f conftest* + +# Decide which environment variable is used to find dynamic libraries. +case "${host}" in + *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;; + *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;; + *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;; + *) RPATH_ENVVAR=LD_LIBRARY_PATH ;; +esac + +# On systems where the dynamic library environment variable is PATH, +# gcc/ will put dynamic libraries into a subdirectory to avoid adding +# built executables to PATH. +if test "$RPATH_ENVVAR" = PATH; then + GCC_SHLIB_SUBDIR=/shlib +else + GCC_SHLIB_SUBDIR= +fi + +# Record target_configdirs and the configure arguments for target and +# build configuration in Makefile. +target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'` +build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'` + +# If we are building libgomp, bootstrap it. +if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then + bootstrap_target_libs=${bootstrap_target_libs}target-libgomp, +fi + +# Determine whether gdb needs tk/tcl or not. +# Use 'maybe' since enable_gdbtk might be true even if tk isn't available +# and in that case we want gdb to be built without tk. Ugh! +# In fact I believe gdb is the *only* package directly dependent on tk, +# so we should be able to put the 'maybe's in unconditionally and +# leave out the maybe dependencies when enable_gdbtk is false. I'm not +# 100% sure that that's safe though. + +gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui" +case "$enable_gdbtk" in + no) + GDB_TK="" ;; + yes) + GDB_TK="${gdb_tk}" ;; + *) + # Only add the dependency on gdbtk when GDBtk is part of the gdb + # distro. Eventually someone will fix this and move Insight, nee + # gdbtk to a separate directory. + if test -d ${srcdir}/gdb/gdbtk ; then + GDB_TK="${gdb_tk}" + else + GDB_TK="" + fi + ;; +esac +CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g` +INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g` + +# Strip out unwanted targets. + +# While at that, we remove Makefiles if we were started for recursive +# configuration, so that the top-level Makefile reconfigures them, +# like we used to do when configure itself was recursive. + +# Loop over modules. We used to use the "$extrasub" feature from Autoconf +# but now we're fixing up the Makefile ourselves with the additional +# commands passed to AC_CONFIG_FILES. Use separate variables +# extrasub-{build,host,target} not because there is any reason to split +# the substitutions up that way, but only to remain below the limit of +# 99 commands in a script, for HP-UX sed. +# Do not nest @if/@endif pairs, because configure will not warn you at all. + +case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in + yes:yes:*\ gold\ *:*,c++,*) ;; + yes:yes:*\ gold\ *:*) + AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages]) + ;; +esac + +# Adjust the toplevel makefile according to whether bootstrap was selected. +case $enable_bootstrap in + yes) + bootstrap_suffix=bootstrap + BUILD_CONFIG=bootstrap-debug + ;; + no) + bootstrap_suffix=no-bootstrap + BUILD_CONFIG= + ;; +esac + +AC_MSG_CHECKING(for default BUILD_CONFIG) + +AC_ARG_WITH([build-config], + [AS_HELP_STRING([--with-build-config='NAME NAME2...'], + [use config/NAME.mk build configuration])], + [case $with_build_config in + yes) with_build_config= ;; + no) with_build_config= BUILD_CONFIG= ;; + esac]) + +if test "x${with_build_config}" != x; then + BUILD_CONFIG=$with_build_config +else + case $BUILD_CONFIG in + bootstrap-debug) + if echo "int f (void) { return 0; }" > conftest.c && + ${CC} -c conftest.c && + mv conftest.o conftest.o.g0 && + ${CC} -c -g conftest.c && + mv conftest.o conftest.o.g && + ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then + : + else + BUILD_CONFIG= + fi + rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g + ;; + esac +fi +AC_MSG_RESULT($BUILD_CONFIG) +AC_SUBST(BUILD_CONFIG) + +extrasub_build= +for module in ${build_configdirs} ; do + if test -z "${no_recursion}" \ + && test -f ${build_subdir}/${module}/Makefile; then + echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure" + rm -f ${build_subdir}/${module}/Makefile + fi + extrasub_build="$extrasub_build +/^@if build-$module\$/d +/^@endif build-$module\$/d +/^@if build-$module-$bootstrap_suffix\$/d +/^@endif build-$module-$bootstrap_suffix\$/d" +done +extrasub_host= +for module in ${configdirs} ; do + if test -z "${no_recursion}"; then + for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do + if test -f ${file}; then + echo 1>&2 "*** removing ${file} to force reconfigure" + rm -f ${file} + fi + done + fi + extrasub_host="$extrasub_host +/^@if $module\$/d +/^@endif $module\$/d +/^@if $module-$bootstrap_suffix\$/d +/^@endif $module-$bootstrap_suffix\$/d" +done +extrasub_target= +for module in ${target_configdirs} ; do + if test -z "${no_recursion}" \ + && test -f ${target_subdir}/${module}/Makefile; then + echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure" + rm -f ${target_subdir}/${module}/Makefile + fi + + # We only bootstrap target libraries listed in bootstrap_target_libs. + case $bootstrap_target_libs in + *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;; + *) target_bootstrap_suffix=no-bootstrap ;; + esac + + extrasub_target="$extrasub_target +/^@if target-$module\$/d +/^@endif target-$module\$/d +/^@if target-$module-$target_bootstrap_suffix\$/d +/^@endif target-$module-$target_bootstrap_suffix\$/d" +done + +# Do the final fixup along with target modules. +extrasub_target="$extrasub_target +/^@if /,/^@endif /d" + +# Create the serialization dependencies. This uses a temporary file. + +AC_ARG_ENABLE([serial-configure], +[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]], + [force sequential configuration of + sub-packages for the host, target or build + machine, or all sub-packages])]) + +case ${enable_serial_configure} in + yes) + enable_serial_build_configure=yes + enable_serial_host_configure=yes + enable_serial_target_configure=yes + ;; +esac + +# These force 'configure's to be done one at a time, to avoid problems +# with contention over a shared config.cache. +rm -f serdep.tmp +echo '# serdep.tmp' > serdep.tmp +olditem= +test "x${enable_serial_build_configure}" = xyes && +for item in ${build_configdirs} ; do + case ${olditem} in + "") ;; + *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;; + esac + olditem=${item} +done +olditem= +test "x${enable_serial_host_configure}" = xyes && +for item in ${configdirs} ; do + case ${olditem} in + "") ;; + *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;; + esac + olditem=${item} +done +olditem= +test "x${enable_serial_target_configure}" = xyes && +for item in ${target_configdirs} ; do + case ${olditem} in + "") ;; + *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;; + esac + olditem=${item} +done +serialization_dependencies=serdep.tmp +AC_SUBST_FILE(serialization_dependencies) + +# Base args. Strip norecursion, cache-file, srcdir, host, build, +# target, nonopt, and variable assignments. These are the ones we +# might not want to pass down to subconfigures. The exception being +# --cache-file=/dev/null, which is used to turn off the use of cache +# files altogether, and which should be passed on to subconfigures. +# Also strip program-prefix, program-suffix, and program-transform-name, +# so that we can pass down a consistent program-transform-name. +baseargs= +tbaseargs= +keep_next=no +skip_next=no +eval "set -- $ac_configure_args" +for ac_arg +do + if test X"$skip_next" = X"yes"; then + skip_next=no + continue + fi + if test X"$keep_next" = X"yes"; then + case $ac_arg in + *\'*) + ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + baseargs="$baseargs '$ac_arg'" + tbaseargs="$tbaseargs '$ac_arg'" + keep_next=no + continue + fi + + # Handle separated arguments. Based on the logic generated by + # autoconf 2.59. + case $ac_arg in + *=* | --config-cache | -C | -disable-* | --disable-* \ + | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ + | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ + | -with-* | --with-* | -without-* | --without-* | --x) + separate_arg=no + ;; + -*) + separate_arg=yes + ;; + *) + separate_arg=no + ;; + esac + + skip_targ=no + case $ac_arg in +changequote(,) + --with-* | --without-*) + libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'` + + case $libopt in + *[-_]include) + lib=`echo "$libopt" | sed 's,[-_]include$,,'` + ;; + *[-_]lib) + lib=`echo "$libopt" | sed 's,[-_]lib$,,'` + ;; + *) + lib=$libopt + ;; + esac +changequote([,]) + + case $lib in + mpc | mpfr | gmp | ppl | cloog) + # If we're processing --with-$lib, --with-$lib-include or + # --with-$lib-lib, for one of the libs above, and target is + # different from host, don't pass the current argument to any + # target library's configure. + if test x$is_cross_compiler = xyes; then + skip_targ=yes + fi + ;; + esac + ;; + esac + + case "$ac_arg" in + --cache-file=/dev/null | \ + -cache-file=/dev/null ) + # Handled here to avoid the test to skip args below. + baseargs="$baseargs '$ac_arg'" + tbaseargs="$tbaseargs '$ac_arg'" + # Assert: $separate_arg should always be no. + keep_next=$separate_arg + ;; + --no*) + continue + ;; + --c* | \ + --sr* | \ + --ho* | \ + --bu* | \ + --t* | \ + --program-* | \ + -cache_file* | \ + -srcdir* | \ + -host* | \ + -build* | \ + -target* | \ + -program-prefix* | \ + -program-suffix* | \ + -program-transform-name* ) + skip_next=$separate_arg + continue + ;; + -*) + # An option. Add it. + case $ac_arg in + *\'*) + ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + baseargs="$baseargs '$ac_arg'" + if test X"$skip_targ" = Xno; then + tbaseargs="$tbaseargs '$ac_arg'" + fi + keep_next=$separate_arg + ;; + *) + # Either a variable assignment, or a nonopt (triplet). Don't + # pass it down; let the Makefile handle this. + continue + ;; + esac +done +# Remove the initial space we just introduced and, as these will be +# expanded by make, quote '$'. +baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'` + +# Add in --program-transform-name, after --program-prefix and +# --program-suffix have been applied to it. Autoconf has already +# doubled dollar signs and backslashes in program_transform_name; we want +# the backslashes un-doubled, and then the entire thing wrapped in single +# quotes, because this will be expanded first by make and then by the shell. +# Also, because we want to override the logic in subdir configure scripts to +# choose program_transform_name, replace any s,x,x, with s,y,y,. +sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out +${program_transform_name} +EOF_SED +gcc_transform_name=`cat conftestsed.out` +rm -f conftestsed.out +baseargs="$baseargs --program-transform-name='${gcc_transform_name}'" +tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'" +if test "$silent" = yes; then + baseargs="$baseargs --silent" + tbaseargs="$tbaseargs --silent" +fi +baseargs="$baseargs --disable-option-checking" +tbaseargs="$tbaseargs --disable-option-checking" + +# Record and document user additions to sub configure arguments. +AC_ARG_VAR([build_configargs], + [additional configure arguments for build directories]) +AC_ARG_VAR([host_configargs], + [additional configure arguments for host directories]) +AC_ARG_VAR([target_configargs], + [additional configure arguments for target directories]) + +# For the build-side libraries, we just need to pretend we're native, +# and not use the same cache file. Multilibs are neither needed nor +# desired. +build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}" + +# For host modules, accept cache file option, or specification as blank. +case "${cache_file}" in +"") # empty + cache_file_option="" ;; +/* | [[A-Za-z]]:[[\\/]]* ) # absolute path + cache_file_option="--cache-file=${cache_file}" ;; +*) # relative path + cache_file_option="--cache-file=../${cache_file}" ;; +esac + +# Host dirs don't like to share a cache file either, horribly enough. +# This seems to be due to autoconf 2.5x stupidity. +host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}" + +target_configargs="$target_configargs ${tbaseargs}" + +# Passing a --with-cross-host argument lets the target libraries know +# whether they are being built with a cross-compiler or being built +# native. However, it would be better to use other mechanisms to make the +# sorts of decisions they want to make on this basis. Please consider +# this option to be deprecated. FIXME. +if test x${is_cross_compiler} = xyes ; then + target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}" +fi + +# Default to --enable-multilib. +if test x${enable_multilib} = x ; then + target_configargs="--enable-multilib ${target_configargs}" +fi + +# Pass --with-newlib if appropriate. Note that target_configdirs has +# changed from the earlier setting of with_newlib. +if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then + target_configargs="--with-newlib ${target_configargs}" +fi + +# Different target subdirs use different values of certain variables +# (notably CXX). Worse, multilibs use *lots* of different values. +# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that +# it doesn't automatically accept command-line overrides of them. +# This means it's not safe for target subdirs to share a cache file, +# which is disgusting, but there you have it. Hopefully this can be +# fixed in future. It's still worthwhile to use a cache file for each +# directory. I think. + +# Pass the appropriate --build, --host, --target and --cache-file arguments. +# We need to pass --target, as newer autoconf's requires consistency +# for target_alias and gcc doesn't manage it consistently. +target_configargs="--cache-file=./config.cache ${target_configargs}" + +FLAGS_FOR_TARGET= +case " $target_configdirs " in + *" newlib "*) + case " $target_configargs " in + *" --with-newlib "*) + case "$target" in + *-cygwin*) + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include' + ;; + esac + + # If we're not building GCC, don't discard standard headers. + if test -d ${srcdir}/gcc; then + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc' + + if test "${build}" != "${host}"; then + # On Canadian crosses, CC_FOR_TARGET will have already been set + # by `configure', so we won't have an opportunity to add -Bgcc/ + # to it. This is right: we don't want to search that directory + # for binaries, but we want the header files in there, so add + # them explicitly. + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed' + + # Someone might think of using the pre-installed headers on + # Canadian crosses, in case the installed compiler is not fully + # compatible with the compiler being built. In this case, it + # would be better to flag an error than risking having + # incompatible object files being constructed. We can't + # guarantee that an error will be flagged, but let's hope the + # compiler will do it, when presented with incompatible header + # files. + fi + fi + + case "${target}-${is_cross_compiler}" in + i[[3456789]]86-*-linux*-no) + # Here host == target, so we don't need to build gcc, + # so we don't want to discard standard headers. + FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'` + ;; + *) + # If we're building newlib, use its generic headers last, but search + # for any libc-related directories first (so make it the last -B + # switch). + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include' + + # If we're building libgloss, find the startup file, simulator library + # and linker script. + case " $target_configdirs " in + *" libgloss "*) + # Look for startup file, simulator library and maybe linker script. + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir" + # Look for libnosys.a in case the target needs it. + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys' + # Most targets have the linker script in the source directory. + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir" + ;; + esac + ;; + esac + ;; + esac + ;; +esac + +case "$target" in + x86_64-*mingw* | *-w64-mingw*) + # MinGW-w64 does not use newlib, nor does it use winsup. It may, + # however, use a symlink named 'mingw' in ${prefix} . + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include' + ;; + *-mingw*) + # MinGW can't be handled as Cygwin above since it does not use newlib. + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' + ;; +esac + +# Allow the user to override the flags for +# our build compiler if desired. +if test x"${build}" = x"${host}" ; then + CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}} + CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}} + LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}} +fi + +# On Canadian crosses, we'll be searching the right directories for +# the previously-installed cross compiler, so don't bother to add +# flags for directories within the install tree of the compiler +# being built; programs in there won't even run. +if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then + # Search for pre-installed headers if nothing else fits. + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include' +fi + +if test "x${use_gnu_ld}" = x && + echo " ${configdirs} " | grep " ld " > /dev/null ; then + # Arrange for us to find uninstalled linker scripts. + FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld' +fi + +# Search for other target-specific linker scripts and such. +case "${target}" in + mep*) + FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary" + ;; +esac + +# Makefile fragments. +for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag; +do + eval fragval=\$$frag + if test $fragval != /dev/null; then + eval $frag=${srcdir}/$fragval + fi +done +AC_SUBST_FILE(host_makefile_frag) +AC_SUBST_FILE(target_makefile_frag) +AC_SUBST_FILE(alphaieee_frag) +AC_SUBST_FILE(ospace_frag) + +# Miscellanea: directories, flags, etc. +AC_SUBST(RPATH_ENVVAR) +AC_SUBST(GCC_SHLIB_SUBDIR) +AC_SUBST(tooldir) +AC_SUBST(build_tooldir) +AC_SUBST(CONFIGURE_GDB_TK) +AC_SUBST(GDB_TK) +AC_SUBST(INSTALL_GDB_TK) + +# Build module lists & subconfigure args. +AC_SUBST(build_configargs) +AC_SUBST(build_configdirs) + +# Host module lists & subconfigure args. +AC_SUBST(host_configargs) +AC_SUBST(configdirs) +AC_SUBST(target_configdirs) + +# Target module lists & subconfigure args. +AC_SUBST(target_configargs) + + +# Build tools. +AC_SUBST(AR_FOR_BUILD) +AC_SUBST(AS_FOR_BUILD) +AC_SUBST(CC_FOR_BUILD) +AC_SUBST(CFLAGS_FOR_BUILD) +AC_SUBST(CXXFLAGS_FOR_BUILD) +AC_SUBST(CXX_FOR_BUILD) +AC_SUBST(DLLTOOL_FOR_BUILD) +AC_SUBST(GCJ_FOR_BUILD) +AC_SUBST(GFORTRAN_FOR_BUILD) +AC_SUBST(GOC_FOR_BUILD) +AC_SUBST(LDFLAGS_FOR_BUILD) +AC_SUBST(LD_FOR_BUILD) +AC_SUBST(NM_FOR_BUILD) +AC_SUBST(RANLIB_FOR_BUILD) +AC_SUBST(WINDMC_FOR_BUILD) +AC_SUBST(WINDRES_FOR_BUILD) + +# Generate default definitions for YACC, M4, LEX and other programs that run +# on the build machine. These are used if the Makefile can't locate these +# programs in objdir. +MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing + +AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y]) +case " $build_configdirs " in + *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;; +esac + +AC_CHECK_PROGS([BISON], [bison], [$MISSING bison]) +case " $build_configdirs " in + *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;; +esac + +AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4]) +case " $build_configdirs " in + *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;; +esac + +AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex]) +case " $build_configdirs " in + *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; + *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;; +esac + +AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex]) +case " $build_configdirs " in + *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;; +esac + +AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo]) +case " $build_configdirs " in + *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;; + *) +changequote(,) + # For an installed makeinfo, we require it to be from texinfo 4.7 or + # higher, else we use the "missing" dummy. + if ${MAKEINFO} --version \ + | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then + : + else + MAKEINFO="$MISSING makeinfo" + fi + ;; +changequote([,]) +esac + +# FIXME: expect and dejagnu may become build tools? + +AC_CHECK_PROGS(EXPECT, expect, expect) +case " $configdirs " in + *" expect "*) + test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect' + ;; +esac + +AC_CHECK_PROGS(RUNTEST, runtest, runtest) +case " $configdirs " in + *" dejagnu "*) + test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest' + ;; +esac + + +# Host tools. +NCN_STRICT_CHECK_TOOLS(AR, ar) +NCN_STRICT_CHECK_TOOLS(AS, as) +NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool) +NCN_STRICT_CHECK_TOOLS(LD, ld) +NCN_STRICT_CHECK_TOOLS(LIPO, lipo) +NCN_STRICT_CHECK_TOOLS(NM, nm) +NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true) +NCN_STRICT_CHECK_TOOLS(STRIP, strip, true) +NCN_STRICT_CHECK_TOOLS(WINDRES, windres) +NCN_STRICT_CHECK_TOOLS(WINDMC, windmc) +NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy) +NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump) +NCN_STRICT_CHECK_TOOLS(READELF, readelf) +AC_SUBST(CC) +AC_SUBST(CXX) +AC_SUBST(CFLAGS) +AC_SUBST(CXXFLAGS) + +# Target tools. +AC_ARG_WITH([build-time-tools], + [AS_HELP_STRING([--with-build-time-tools=PATH], + [use given path to find target tools during the build])], + [case x"$withval" in + x/*) ;; + *) + with_build_time_tools= + AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path]) + ;; + esac], + [with_build_time_tools=]) + +NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc) +NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx) +NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET}) +NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj) +NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran) +NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo) + +ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar) +ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as) +ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool) +ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld) +ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo) +ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm) +ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump) +ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib) +ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf) +ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip) +ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres) +ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc) + +RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET" + +GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar]) +GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new]) +GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) +dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS +GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX, + [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs], + c++) +GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX, + [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs], + c++) +GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool]) +GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) +GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ, + [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java) +GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN, + [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran) +GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC, + [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go) +GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new]) +GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO) +GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new]) +GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump]) +GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib]) +GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf]) +GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new]) +GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres]) +GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc]) + +AC_SUBST(FLAGS_FOR_TARGET) +AC_SUBST(RAW_CXX_FOR_TARGET) + +# Certain tools may need extra flags. +AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target} +RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target} +NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target} + +# When building target libraries, except in a Canadian cross, we use +# the same toolchain as the compiler we just built. +COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)' +COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)' +COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)' +if test $host = $build; then + case " $configdirs " in + *" gcc "*) + COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as' + COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld' + COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target} + ;; + esac +fi + +AC_SUBST(COMPILER_AS_FOR_TARGET) +AC_SUBST(COMPILER_LD_FOR_TARGET) +AC_SUBST(COMPILER_NM_FOR_TARGET) + +AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) +AC_ARG_ENABLE(maintainer-mode, +[AS_HELP_STRING([--enable-maintainer-mode], + [enable make rules and dependencies not useful + (and sometimes confusing) to the casual installer])], + USE_MAINTAINER_MODE=$enableval, + USE_MAINTAINER_MODE=no) +AC_MSG_RESULT($USE_MAINTAINER_MODE) +AC_SUBST(MAINTAINER_MODE_TRUE) +AC_SUBST(MAINTAINER_MODE_FALSE) +if test "$USE_MAINTAINER_MODE" = yes; then + MAINTAINER_MODE_TRUE= + MAINTAINER_MODE_FALSE='#' +else + MAINTAINER_MODE_TRUE='#' + MAINTAINER_MODE_FALSE= +fi +MAINT=$MAINTAINER_MODE_TRUE +AC_SUBST(MAINT)dnl + +# --------------------- +# GCC bootstrap support +# --------------------- + +# Stage specific cflags for build. +stage1_cflags="-g" +case $build in + vax-*-*) + case ${GCC} in + yes) stage1_cflags="-g -Wa,-J" ;; + *) stage1_cflags="-g -J" ;; + esac ;; +esac + +# This is aimed to mimic bootstrap with a non-GCC compiler to catch problems. +if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then + saved_CFLAGS="$CFLAGS" + + # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it. + CFLAGS="$CFLAGS -fkeep-inline-functions" + AC_MSG_CHECKING([whether -fkeep-inline-functions is supported]) + AC_TRY_COMPILE([ +#if (__GNUC__ < 3) \ + || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \ + || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1))) +#error http://gcc.gnu.org/PR29382 +#endif + ],, + [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"], + [AC_MSG_RESULT([no])]) + + CFLAGS="$saved_CFLAGS" +fi + +AC_SUBST(stage1_cflags) + +# Enable --enable-checking in stage1 of the compiler. +AC_ARG_ENABLE(stage1-checking, +[AS_HELP_STRING([[--enable-stage1-checking[=all]]], + [choose additional checking for stage1 of the compiler])], +[stage1_checking=--enable-checking=${enable_stage1_checking}], +[if test "x$enable_checking" = xno || test "x$enable_checking" = x; then + stage1_checking=--enable-checking=yes,types +else + stage1_checking=--enable-checking=$enable_checking,types +fi]) +AC_SUBST(stage1_checking) + +# Enable -Werror in bootstrap stage2 and later. +AC_ARG_ENABLE(werror, +[AS_HELP_STRING([--enable-werror], + [enable -Werror in bootstrap stage2 and later])], [], +[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then + enable_werror=yes +else + enable_werror=no +fi]) +case ${enable_werror} in + yes) stage2_werror_flag="--enable-werror-always" ;; + *) stage2_werror_flag="" ;; +esac +AC_SUBST(stage2_werror_flag) + +# If using ENABLE_BUILD_POSTSTAGE1_WITH_CXX, pass +# --enable-build-with-cxx after stage1. +if test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then + POSTSTAGE1_CONFIGURE_FLAGS=--enable-build-with-cxx +else + POSTSTAGE1_CONFIGURE_FLAGS= +fi +AC_SUBST(POSTSTAGE1_CONFIGURE_FLAGS) + +# Specify what files to not compare during bootstrap. + +compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*" +case "$target" in + hppa*64*-*-hpux*) ;; + hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;; +esac +case " $configdirs " in +*" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;; +esac +AC_SUBST(compare_exclusions) + +AC_CONFIG_FILES([Makefile], + [sed "$extrasub_build" Makefile | + sed "$extrasub_host" | + sed "$extrasub_target" > mf$$ + mv -f mf$$ Makefile], + [extrasub_build="$extrasub_build" + extrasub_host="$extrasub_host" + extrasub_target="$extrasub_target"]) +AC_OUTPUT |