diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/configure.ac')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/configure.ac | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/configure.ac b/gcc-4.4.3/libstdc++-v3/configure.ac new file mode 100644 index 000000000..977e12cf9 --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/configure.ac @@ -0,0 +1,403 @@ +# Process this file with autoreconf to produce a configure script. + +AC_PREREQ(2.59) +AC_INIT(package-unused, version-unused,, libstdc++) +AC_CONFIG_SRCDIR(src/ios.cc) +AC_CONFIG_HEADER(config.h) + +# This works around the fact that libtool configuration may change LD +# for this particular configuration, but some shells, instead of +# keeping the changes in LD private, export them just because LD is +# exported. Only used at the end of this file. +### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD + +# For libtool versioning info, format is CURRENT:REVISION:AGE +libtool_VERSION=6:13:0 +AC_SUBST(libtool_VERSION) + +# Find the rest of the source tree framework. +AM_ENABLE_MULTILIB(, ..) + +# Gets build, host, target, *_vendor, *_cpu, *_os, etc. +# +# You will slowly go insane if you do not grok the following fact: when +# building v3 as part of the compiler, the top-level /target/ becomes the +# library's /host/. configure then causes --target to default to --host, +# exactly like any other package using autoconf. Therefore, 'target' and +# 'host' will always be the same. This makes sense both for native and +# cross compilers, just think about it for a little while. :-) +# +# Also, if v3 is being configured as part of a cross compiler, the top-level +# configure script will pass the "real" host as $with_cross_host. +# +# Do not delete or change the following two lines. For why, see +# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html +AC_CANONICAL_SYSTEM +target_alias=${target_alias-$host_alias} + +# Handy for debugging: +#AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5 + +if test "$build" != "$host"; then + # We are being configured with some form of cross compiler. + GLIBCXX_IS_NATIVE=false + case "$host","$target" in + # Darwin crosses can use the host system's libraries and headers, + # because of the fat library support. Of course, it must be the + # same version of Darwin on both sides. Allow the user to + # just say --target=foo-darwin without a version number to mean + # "the version on this system". + *-*-darwin*,*-*-darwin*) + hostos=`echo $host | sed 's/.*-darwin/darwin/'` + targetos=`echo $target | sed 's/.*-darwin/darwin/'` + if test $hostos = $targetos -o $targetos = darwin ; then + GLIBCXX_IS_NATIVE=true + fi + ;; + + *) + GCC_NO_EXECUTABLES + ;; + esac +else + GLIBCXX_IS_NATIVE=true +fi + +# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the +# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. +# 1.x: minimum required version +# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch +# of other PACKAGE_* variables will, however, and there's nothing +# we can do about that; they come from AC_INIT). +# foreign: we don't follow the normal rules for GNU packages (no COPYING +# file in the top srcdir, etc, etc), so stop complaining. +# no-dependencies: turns off auto dependency generation (just for now) +# -Wall: turns on all automake warnings... +# -Wno-portability: ...except this one, since GNU make is now required. +AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies -Wall -Wno-portability -Wno-override]) +AH_TEMPLATE(PACKAGE, [Name of package]) +AH_TEMPLATE(VERSION, [Version number of package]) + +# Runs configure.host, finds CC, CXX, and assorted other critical bits. Sets +# up critical shell variables. +GLIBCXX_CONFIGURE + +if test "x${with_newlib}" != "xyes"; then + AC_LIBTOOL_DLOPEN +fi +AM_PROG_LIBTOOL +AC_SUBST(enable_shared) +AC_SUBST(enable_static) + +# Possibly disable most of the library. +## TODO: Consider skipping unncessary tests altogether in this case, rather +## than just ignoring the results. Faster /and/ more correct, win win. +GLIBCXX_ENABLE_HOSTED + +# Enable compiler support that doesn't require linking. +GLIBCXX_ENABLE_SJLJ_EXCEPTIONS +GLIBCXX_ENABLE_PCH($is_hosted) +GLIBCXX_ENABLE_THREADS +GLIBCXX_ENABLE_ATOMIC_BUILTINS + +# Checks for compiler support that doesn't require linking. +GLIBCXX_CHECK_COMPILER_FEATURES + +# Enable all the variable C++ runtime options that don't require linking. +GLIBCXX_ENABLE_CSTDIO +GLIBCXX_ENABLE_CLOCALE +GLIBCXX_ENABLE_ALLOCATOR +GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host +GLIBCXX_ENABLE_LONG_LONG([yes]) +GLIBCXX_ENABLE_WCHAR_T([yes]) +GLIBCXX_ENABLE_C99([yes]) +GLIBCXX_ENABLE_CONCEPT_CHECKS([no]) +GLIBCXX_ENABLE_DEBUG_FLAGS(["-g3 -O0"]) +GLIBCXX_ENABLE_DEBUG([no]) +GLIBCXX_ENABLE_PARALLEL([yes]) +GLIBCXX_ENABLE_CXX_FLAGS +GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no]) + +# Checks for operating systems support that doesn't require linking. +GLIBCXX_CHECK_SYSTEM_ERROR + +# For the streamoff typedef. +GLIBCXX_CHECK_INT64_T + +# For LFS support. +GLIBCXX_CHECK_LFS + +# For showmanyc_helper(). +AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h) +GLIBCXX_CHECK_POLL +GLIBCXX_CHECK_S_ISREG_OR_S_IFREG + +# For xsputn_2(). +AC_CHECK_HEADERS(sys/uio.h) +GLIBCXX_CHECK_WRITEV + +# For C99 support to TR1. +GLIBCXX_CHECK_C99_TR1 + +# For common values of EOF, SEEK_CUR, SEEK_END. +GLIBCXX_CHECK_STDIO_MACROS + +# For gettimeofday support. +GLIBCXX_CHECK_GETTIMEOFDAY + +# For clock_gettime, nanosleep and sched_yield support. +# NB: The default is [no], because otherwise it requires linking. +GLIBCXX_ENABLE_LIBSTDCXX_TIME([no]) + +# For gthread support +GLIBCXX_CHECK_GTHREADS + +AC_LC_MESSAGES + +# Check for available headers. +AC_CHECK_HEADERS([endian.h float.h fp.h ieeefp.h inttypes.h locale.h \ +machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \ +strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \ +sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \ +wchar.h wctype.h]) + +# Only do link tests if native. Else, hardcode. +if $GLIBCXX_IS_NATIVE; then + + # We can do more elaborate tests that assume a working linker. + CANADIAN=no + + GLIBCXX_CHECK_LINKER_FEATURES + GLIBCXX_CHECK_MATH_SUPPORT + GLIBCXX_CHECK_STDLIB_SUPPORT + + # For /dev/random and /dev/urandom for TR1. + GLIBCXX_CHECK_RANDOM_TR1 + + # For TLS support. + GCC_CHECK_TLS + + # For iconv support. + AM_ICONV + +else + + # This lets us hard-code the functionality we know we'll have in the cross + # target environment. "Let" is a sugar-coated word placed on an especially + # dull and tedious hack, actually. + # + # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros + # that involve linking, can't be used: + # "cannot open sim-crt0.o" + # "cannot open crt0.o" + # etc. All this is because there currently exists no unified, consistent + # way for top level CC information to be passed down to target directories: + # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc. + # When all of that is done, all of this hokey, excessive AC_DEFINE junk for + # crosses can be removed. + + # If Canadian cross, then don't pick up tools from the build directory. + # Used only in GLIBCXX_EXPORT_INCLUDES. + if test -n "$with_cross_host" && + test x"$build_alias" != x"$with_cross_host" && + test x"$build" != x"$target"; + then + CANADIAN=yes + else + CANADIAN=no + fi + + # Construct crosses by hand, eliminating bits that need ld... + # GLIBCXX_CHECK_MATH_SUPPORT + + # First, test for "known" system libraries. We may be using newlib even + # on a hosted environment. + if test "x${with_newlib}" = "xyes"; then + os_include_dir="os/newlib" + AC_DEFINE(HAVE_HYPOT) + + # GLIBCXX_CHECK_STDLIB_SUPPORT + AC_DEFINE(HAVE_STRTOF) + + AC_DEFINE(HAVE_ACOSF) + AC_DEFINE(HAVE_ASINF) + AC_DEFINE(HAVE_ATAN2F) + AC_DEFINE(HAVE_ATANF) + AC_DEFINE(HAVE_CEILF) + AC_DEFINE(HAVE_COSF) + AC_DEFINE(HAVE_COSHF) + AC_DEFINE(HAVE_EXPF) + AC_DEFINE(HAVE_FABSF) + AC_DEFINE(HAVE_FLOORF) + AC_DEFINE(HAVE_FMODF) + AC_DEFINE(HAVE_FREXPF) + AC_DEFINE(HAVE_LDEXPF) + AC_DEFINE(HAVE_LOG10F) + AC_DEFINE(HAVE_LOGF) + AC_DEFINE(HAVE_MODFF) + AC_DEFINE(HAVE_POWF) + AC_DEFINE(HAVE_SINF) + AC_DEFINE(HAVE_SINHF) + AC_DEFINE(HAVE_SQRTF) + AC_DEFINE(HAVE_TANF) + AC_DEFINE(HAVE_TANHF) + + AC_DEFINE(HAVE_ICONV) + else + GLIBCXX_CROSSCONFIG + fi + + # At some point, we should differentiate between architectures + # like x86, which have long double versions, and alpha/powerpc/etc., + # which don't. For the time being, punt. + if test x"long_double_math_on_this_cpu" = x"yes"; then + AC_DEFINE(HAVE_ACOSL) + AC_DEFINE(HAVE_ASINL) + AC_DEFINE(HAVE_ATAN2L) + AC_DEFINE(HAVE_ATANL) + AC_DEFINE(HAVE_CEILL) + AC_DEFINE(HAVE_COSL) + AC_DEFINE(HAVE_COSHL) + AC_DEFINE(HAVE_EXPL) + AC_DEFINE(HAVE_FABSL) + AC_DEFINE(HAVE_FLOORL) + AC_DEFINE(HAVE_FMODL) + AC_DEFINE(HAVE_FREXPL) + AC_DEFINE(HAVE_LDEXPL) + AC_DEFINE(HAVE_LOG10L) + AC_DEFINE(HAVE_LOGL) + AC_DEFINE(HAVE_MODFL) + AC_DEFINE(HAVE_POWL) + AC_DEFINE(HAVE_SINCOSL) + AC_DEFINE(HAVE_SINL) + AC_DEFINE(HAVE_SINHL) + AC_DEFINE(HAVE_SQRTL) + AC_DEFINE(HAVE_TANL) + AC_DEFINE(HAVE_TANHL) + fi +fi + +# Check for _Unwind_GetIPInfo. +GCC_CHECK_UNWIND_GETIPINFO + + +GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])]) + +GCC_HEADER_STDINT(include/gstdint.h) + +# This depends on GLIBCXX CHECK_LINKER_FEATURES, but without it assumes no. +GLIBCXX_ENABLE_SYMVERS([yes]) +GLIBCXX_ENABLE_VISIBILITY([yes]) + +ac_ldbl_compat=no +case "$target" in + powerpc*-*-linux* | \ + powerpc*-*-gnu* | \ + sparc*-*-linux* | \ + s390*-*-linux* | \ + alpha*-*-linux*) + AC_TRY_COMPILE(, [ +#if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__)) +#error no need for long double compatibility +#endif + ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no]) + if test "$ac_ldbl_compat" = yes; then + AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1, + [Define if compatibility should be provided for -mlong-double-64.]) + port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver" + fi +esac +GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes) + +# This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE. +GLIBCXX_CONFIGURE_TESTSUITE + +# Propagate the target-specific source directories through the build chain. +ATOMICITY_SRCDIR=config/${atomicity_dir} +ATOMIC_WORD_SRCDIR=config/${atomic_word_dir} +ATOMIC_FLAGS=${atomic_flags} +CPU_DEFINES_SRCDIR=config/${cpu_defines_dir} +OS_INC_SRCDIR=config/${os_include_dir} +ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir} +ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir} +AC_SUBST(ATOMICITY_SRCDIR) +AC_SUBST(ATOMIC_WORD_SRCDIR) +AC_SUBST(ATOMIC_FLAGS) +AC_SUBST(CPU_DEFINES_SRCDIR) +AC_SUBST(ABI_TWEAKS_SRCDIR) +AC_SUBST(OS_INC_SRCDIR) +AC_SUBST(ERROR_CONSTANTS_SRCDIR) + + +# Determine cross-compile flags and AM_CONDITIONALs. +#AC_SUBST(GLIBCXX_IS_NATIVE) +#AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes) +GLIBCXX_EVALUATE_CONDITIONALS + +AC_CACHE_SAVE + +if test ${multilib} = yes; then + multilib_arg="--enable-multilib" +else + multilib_arg= +fi + +# Export all the install information. +GLIBCXX_EXPORT_INSTALL_INFO + +# Export all the include and flag information to Makefiles. +GLIBCXX_EXPORT_INCLUDES +GLIBCXX_EXPORT_FLAGS + +if test "$enable_shared" = yes; then + LIBSUPCXX_PICFLAGS="-prefer-pic" +else + LIBSUPCXX_PICFLAGS= +fi +AC_SUBST(LIBSUPCXX_PICFLAGS) + +dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros, +dnl which can all be called multiple times as needed, plus one (different) +dnl AC_OUTPUT macro. This one lists the files to be created: +AC_CONFIG_FILES( \ + Makefile \ + AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]) + ) +AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags]) + +dnl These commands are run at the end of config.status: +AC_CONFIG_COMMANDS([default], +[if test -n "$CONFIG_FILES"; then + # Multilibs need MULTISUBDIR defined correctly in certain makefiles so + # that multilib installs will end up installed in the correct place. + # The testsuite needs it for multilib-aware ABI baseline files. + # To work around this not being passed down from config-ml.in -> + # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually + # append it here. Only modify Makefiles that have just been created. + # + # Also, get rid of this simulated-VPATH thing that automake does. + cat > vpsed << \_EOF +s!`test -f '$<' || echo '$(srcdir)/'`!! +_EOF + for i in $SUBDIRS; do + case $CONFIG_FILES in + *${i}/Makefile*) + #echo "Adding MULTISUBDIR to $i/Makefile" + sed -f vpsed $i/Makefile > tmp + grep '^MULTISUBDIR =' Makefile >> tmp + mv tmp $i/Makefile + ;; + esac + done + rm vpsed + fi + (cd include && ${MAKE-make}) +], +[ +# Variables needed in config.status (file generation) which aren't already +# passed by autoconf. +SUBDIRS="$SUBDIRS" +]) + +dnl And this actually makes things happen: +AC_OUTPUT |