3d05b34592
2003-10-22 Paolo Carlini <pcarlini@suse.de> PR libstdc++/8610 * acinclude.m4 (GLIBCXX_CHECK_INT64_T): New macro, checking for the availability of int64_t. (GLIBCXX_CHECK_LFS): New macro, checking for LFS support. * configure.ac: Call here. * acconfig.h: Add undef for the corresponding symbols. * config/io/basic_file_stdio.cc (__basic_file<char>::open): Depending on _GLIBCXX_USE_LFS, call fopen64 or fopen. (__basic_file<char>::seekoff): Likewise, call lseek64 when available, otherwise lseek, checking the __off parameter. * include/bits/postypes.h: Typedef __streamoff_base_type to int64_t if available, otherwise long long. * aclocal.m4: Regenerate. * config.h.in: Likewise. * configure: Likewise. * acinclude.m4 (GLIBCXX_CHECK_POLL, GLIBCXX_CHECK_WRITEV): Use AC_TRY_LINK instead of AC_TRY_COMPILE. From-SVN: r72806
350 lines
11 KiB
Plaintext
350 lines
11 KiB
Plaintext
# Process this file with autoconf to produce a configure script, like so:
|
|
# aclocal && autoconf && autoheader && automake
|
|
|
|
AC_PREREQ(2.57)
|
|
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=6:0:0
|
|
AC_SUBST(libtool_VERSION)
|
|
|
|
# Find the rest of the source tree framework.
|
|
GLIBCXX_TOPREL_CONFIGURE
|
|
|
|
# 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" != "$host"; then
|
|
# We are being configured with some form of cross compiler.
|
|
GLIBCXX_IS_NATIVE=false
|
|
GCC_NO_EXECUTABLES
|
|
else
|
|
GLIBCXX_IS_NATIVE=true
|
|
fi
|
|
|
|
# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the
|
|
# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am.
|
|
# 1.x: minimum required version
|
|
# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch
|
|
# of other PACKAGE_* variables will, however, and there's nothing
|
|
# we can do about that; they come from AC_INIT).
|
|
# foreign: we don't follow the normal rules for GNU packages (no COPYING
|
|
# file in the top srcdir, etc, etc), so stop complaining.
|
|
# no-dependencies: turns off auto dependency generation (just for now)
|
|
# -Wall: turns on all automake warnings
|
|
AM_INIT_AUTOMAKE([1.7.6 no-define foreign no-dependencies -Wall])
|
|
|
|
# Runs configure.host, finds CC, CXX, and assorted other critical bits. Sets
|
|
# up critical shell variables.
|
|
GLIBCXX_CONFIGURE
|
|
|
|
#AC_MSG_NOTICE([====== Starting libtool configuration])
|
|
AC_LIBTOOL_DLOPEN
|
|
AM_PROG_LIBTOOL
|
|
AC_SUBST(enable_shared)
|
|
AC_SUBST(enable_static)
|
|
#AC_MSG_NOTICE([====== Finished libtool configuration]) ; sleep 10
|
|
|
|
# Possibly disable most of the library.
|
|
## XXX Consider skipping unncessary tests altogether in this case, rather
|
|
## than just ignoring the results. Faster /and/ more correct, win win.
|
|
GLIBCXX_ENABLE_HOSTED
|
|
|
|
# Check for support bits and g++ features that don't require linking.
|
|
GLIBCXX_ENABLE_SJLJ_EXCEPTIONS
|
|
GLIBCXX_ENABLE_LIBUNWIND_EXCEPTIONS
|
|
GLIBCXX_ENABLE_PCH($is_hosted)
|
|
|
|
# Enable all the variable C++ runtime options.
|
|
# NB: C_MBCHAR must come early.
|
|
GLIBCXX_ENABLE_CSTDIO
|
|
GLIBCXX_ENABLE_CLOCALE
|
|
GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host
|
|
GLIBCXX_ENABLE_C_MBCHAR([yes])
|
|
GLIBCXX_ENABLE_C99([yes])
|
|
GLIBCXX_ENABLE_LONG_LONG([yes])
|
|
GLIBCXX_ENABLE_THREADS
|
|
GLIBCXX_ENABLE_CONCEPT_CHECKS([no])
|
|
GLIBCXX_ENABLE_DEBUG_FLAGS(["-g3 -O0"])
|
|
GLIBCXX_ENABLE_DEBUG([no])
|
|
GLIBCXX_ENABLE_CXX_FLAGS
|
|
|
|
# No surprises, no surprises...
|
|
if test $atomicity_include_dir = cpu/generic ; then
|
|
AC_MSG_WARN([No native atomic operations are provided for this platform.])
|
|
if test $target_thread_file = single; then
|
|
AC_MSG_WARN([They cannot be faked when thread support is disabled.])
|
|
AC_MSG_WARN([Thread-safety of certain classes is not guaranteed.])
|
|
else
|
|
AC_MSG_WARN([They will be faked using a mutex.])
|
|
AC_MSG_WARN([Performance of certain classes will degrade as a result.])
|
|
fi
|
|
fi
|
|
|
|
|
|
if $GLIBCXX_IS_NATIVE; then
|
|
|
|
# We can do more elaborate tests that assume a working linker.
|
|
CANADIAN=no
|
|
|
|
# Check for available headers.
|
|
AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \
|
|
machine/param.h sys/machine.h fp.h locale.h float.h inttypes.h gconv.h \
|
|
sys/types.h])
|
|
|
|
GLIBCXX_CHECK_COMPILER_FEATURES
|
|
GLIBCXX_CHECK_LINKER_FEATURES
|
|
GLIBCXX_CHECK_MATH_SUPPORT
|
|
GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
|
|
GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
|
|
GLIBCXX_CHECK_WCHAR_T_SUPPORT
|
|
GLIBCXX_CHECK_STDLIB_SUPPORT
|
|
|
|
# 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 the __streamoff_base_type typedef.
|
|
GLIBCXX_CHECK_INT64_T
|
|
|
|
# For LFS support.
|
|
GLIBCXX_CHECK_LFS
|
|
|
|
AC_LC_MESSAGES
|
|
|
|
AC_TRY_COMPILE(
|
|
[#include <setjmp.h>],
|
|
[sigjmp_buf env;
|
|
while (! sigsetjmp (env, 1))
|
|
siglongjmp (env, 1);
|
|
],
|
|
[AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available.])])
|
|
|
|
AC_FUNC_MMAP
|
|
|
|
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_COMPILER_FEATURES
|
|
# GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
|
|
# 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_STRTOLD)
|
|
# AC_FUNC_MMAP
|
|
AC_DEFINE(HAVE_MMAP)
|
|
|
|
AC_DEFINE(HAVE_ACOSF)
|
|
AC_DEFINE(HAVE_ASINF)
|
|
AC_DEFINE(HAVE_ATAN2F)
|
|
AC_DEFINE(HAVE_ATANF)
|
|
AC_DEFINE(HAVE_CEILF)
|
|
AC_DEFINE(HAVE_COPYSIGN)
|
|
AC_DEFINE(HAVE_COPYSIGNF)
|
|
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)
|
|
else
|
|
m4_include([crossconfig.m4])
|
|
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_COPYSIGNL)
|
|
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
|
|
|
|
# This depends on GLIBCXX CHECK_LINKER_FEATURES, but without it assumes no.
|
|
GLIBCXX_ENABLE_SYMVERS([yes])
|
|
|
|
# This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE.
|
|
GLIBCXX_CONFIGURE_TESTSUITE
|
|
|
|
# Propagate the target-specific source directories through the build chain.
|
|
# (Nothing currently uses cpu_include_dir directly; only atomicity_include_dir
|
|
# uses it, and it only gets used in this file.)
|
|
ATOMICITY_INC_SRCDIR=config/${atomicity_include_dir}
|
|
OS_INC_SRCDIR=config/${os_include_dir}
|
|
AC_SUBST(ATOMICITY_INC_SRCDIR)
|
|
AC_SUBST(OS_INC_SRCDIR)
|
|
|
|
# Determine cross-compile flags and AM_CONDITIONALs.
|
|
#AC_SUBST(GLIBCXX_IS_NATIVE)
|
|
#AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes)
|
|
# from GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT:
|
|
#AM_CONDITIONAL(GLIBCXX_BUILD_LIBMATH, test $need_libmath = 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 ${CONFIG_SHELL-/bin/sh} ./libtool --tag CXX --features |
|
|
grep "enable shared" > /dev/null;
|
|
then
|
|
LIBSUPCXX_PICFLAGS=-prefer-pic
|
|
else
|
|
LIBSUPCXX_PICFLAGS=
|
|
fi
|
|
AC_SUBST(LIBSUPCXX_PICFLAGS)
|
|
|
|
dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros,
|
|
dnl which can all be called multiple times as needed, plus one (different)
|
|
dnl AC_OUTPUT macro. This one lists the files to be created:
|
|
AC_CONFIG_FILES( \
|
|
Makefile \
|
|
AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ])
|
|
)
|
|
AC_CONFIG_FILES([scripts/check_survey],[chmod +x scripts/check_survey])
|
|
AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags])
|
|
|
|
dnl These commands are run at the end of config.status:
|
|
AC_CONFIG_COMMANDS([default],
|
|
[if test -n "$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
|