gcc/libstdc++-v3/configure.in
Alexandre Oliva 48dbafe4a9 gen-num-limits.cc: Use sigsetjmp and siglongjmp if available.
* src/gen-num-limits.cc: Use sigsetjmp and siglongjmp if available.
* mknumeric_limits: Compile it with -DHAVE_CONFIG_H.
* configure.in: Test for sigsetjmp.
* configure, config.h.in: Rebuilt.

From-SVN: r39586
2001-02-11 18:15:49 +00:00

335 lines
9.7 KiB
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# Process this file with autoconf to produce a configure script, like so:
# aclocal, autoconf, autoheader, automake
AC_PREREQ(2.13)
AC_INIT(src/ios.cc)
# When building with srcdir == objdir, links to the source files will
# be created in directories within the target_subdir. We have to
# adjust toplevel_srcdir accordingly, so that configure finds
# install-sh and other auxiliary files that live in the top-level
# source directory.
if test "${srcdir}" = "."; then
if test -z "${with_target_subdir}"; then
toplevel_srcdir="\${top_srcdir}/.."
auxdir="${srcdir}/.."
else
if test "${with_target_subdir}" != "."; then
toplevel_srcdir="\${top_srcdir}/${with_multisrctop}../.."
auxdir="${srcdir}/${with_multisrctop}../.."
else
toplevel_srcdir="\${top_srcdir}/${with_multisrctop}.."
auxdir="${srcdir}/${with_multisrctop}.."
fi
fi
else
toplevel_srcdir="\${top_srcdir}/.."
auxdir="${srcdir}/.."
fi
AC_CONFIG_AUX_DIR($auxdir)
AC_SUBST(toplevel_srcdir)
dnl This is here just to satisfy automake.
ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
# Gets and sets build, host, target, *_vendor, *_cpu, *_os, etc.
AC_CANONICAL_SYSTEM
# We use these options to decide which functions to include.
AC_ARG_WITH(target-subdir,
[ --with-target-subdir=SUBDIR
configuring in a subdirectory])
AC_ARG_WITH(cross-host,
[ --with-cross-host=HOST configuring with a cross compiler])
# Runs configure.host and configure.target. Have to run this before
# the GLIBCPP_ENABLE_* macros below.
GLIBCPP_CONFIGURE(.)
AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL
AC_SUBST(enable_shared)
AC_SUBST(enable_static)
GLIBCPP_CHECK_GNU_MAKE
if test "x$_cv_gnu_make_command" = "x"; then
AC_MSG_ERROR([GNU make not found. Please install it or correct your path.])
fi
AM_CONFIG_HEADER(config.h)
# Check for c++ or library specific bits that don't require linking.
GLIBCPP_CHECK_COMPILER_VERSION
# Enable all the crazy c++ stuff. C_MBCHAR must come early.
GLIBCPP_ENABLE_DEBUG($USE_MAINTAINER_MODE)
GLIBCPP_ENABLE_CSTDIO
GLIBCPP_ENABLE_CLOCALE
GLIBCPP_ENABLE_C_MBCHAR([yes])
GLIBCPP_ENABLE_LONG_LONG([no])
GLIBCPP_ENABLE_CHEADERS([c_std])
GLIBCPP_ENABLE_THREADS
GLIBCPP_ENABLE_CXX_FLAGS([none])
if test -n "$with_cross_host"; then
# We are being configured with a cross compiler. AC_REPLACE_FUNCS
# may not work correctly, because the compiler may not be able to
# link executables.
xcompiling=1
NATIVE=no
# If Canadian cross, then don't pick up tools from the build
# directory.
if test x"$build" != x"$with_cross_host" && x"$build" != x"$target"; then
CANADIAN=yes
NULL_TARGET=yes
else
CANADIAN=no
NULL_TARGET=no
fi
case "$target_alias" in
*-linux*)
# Construct linux crosses by hand, eliminating bits that need ld...
# 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])
# GLIBCPP_CHECK_COMPILER_FEATURES
WFMT_FLAGS='-fdiagnostics-show-location=once'
SECTION_FLAGS='-ffunction-sections -fdata-sections'
AC_SUBST(WFMT_FLAGS)
AC_SUBST(SECTION_FLAGS)
GLIBCPP_CHECK_LINKER_FEATURES
# GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
# GLIBCPP_CHECK_MATH_SUPPORT
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_FINITE)
AC_DEFINE(HAVE_FINITEF)
AC_DEFINE(HAVE_FLOORF)
AC_DEFINE(HAVE_FMODF)
AC_DEFINE(HAVE_FREXPF)
AC_DEFINE(HAVE_ISINF)
AC_DEFINE(HAVE_ISINFF)
AC_DEFINE(HAVE_ISNAN)
AC_DEFINE(HAVE_ISNANF)
AC_DEFINE(HAVE_LDEXPF)
AC_DEFINE(HAVE_LOG10F)
AC_DEFINE(HAVE_LOGF)
AC_DEFINE(HAVE_MODFF)
AC_DEFINE(HAVE_POWF)
AC_DEFINE(HAVE_SINCOS)
AC_DEFINE(HAVE_SINCOSF)
AC_DEFINE(HAVE_SINF)
AC_DEFINE(HAVE_SINHF)
AC_DEFINE(HAVE_SQRTF)
AC_DEFINE(HAVE_TANF)
AC_DEFINE(HAVE_TANHF)
# 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_FINITEL)
AC_DEFINE(HAVE_FLOORL)
AC_DEFINE(HAVE_FMODL)
AC_DEFINE(HAVE_FREXPL)
AC_DEFINE(HAVE_ISINFL)
AC_DEFINE(HAVE_ISNANL)
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
GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT
GLIBCPP_CHECK_WCHAR_T_SUPPORT
os_include_dir="config/os/gnu-linux"
# GLIBCPP_CHECK_STDLIB_SUPPORT
AC_DEFINE(HAVE_STRTOF)
AC_DEFINE(HAVE_STRTOLD)
# AC_FUNC_MMAP
AC_DEFINE(HAVE_MMAP)
;;
*)
# We assume newlib. This lets us hard-code the functions we know
# we'll have.
AC_DEFINE(HAVE_FINITE)
AC_DEFINE(HAVE_ISNAN)
AC_DEFINE(HAVE_ISNANF)
AC_DEFINE(HAVE_ISINF)
AC_DEFINE(HAVE_ISINFF)
os_include_dir="config/os/newlib"
AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX)
AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX)
# need to check for faster f versions of math functions, ie sinf?
;;
esac
else
# We are being configured natively. We can do more elaborate tests
# that include AC_TRY_COMPILE now, as the linker is assumed to be
# working.
xcompiling=0
NATIVE=yes
CANADIAN=no
NULL_TARGET=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])
GLIBCPP_CHECK_COMPILER_FEATURES
GLIBCPP_CHECK_LINKER_FEATURES
GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
GLIBCPP_CHECK_MATH_SUPPORT
GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT
GLIBCPP_CHECK_WCHAR_T_SUPPORT
GLIBCPP_CHECK_STDLIB_SUPPORT
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
fi
# Now that ctype is determined for all possible targets, we can do this...
AC_LINK_FILES($os_include_dir/bits/ctype_base.h, \
include/bits/ctype_base.h)
AC_LINK_FILES($os_include_dir/bits/ctype_inline.h, \
include/bits/ctype_inline.h)
AC_LINK_FILES($os_include_dir/bits/ctype_noninline.h, \
include/bits/ctype_noninline.h)
AC_LINK_FILES($ATOMICITYH/bits/atomicity.h, include/bits/atomicity.h)
AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
AC_CACHE_SAVE
AC_LC_MESSAGES
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
# Generate the various Makefiles, include files, and scripts.
# Needed so that g++ can find the correct include subdir automatically.
INTERFACE=v3
# Export all the install information
GLIBCPP_EXPORT_INSTALL_INFO
# Export all the include and flag information to makefiles.
GLIBCPP_EXPORT_INCLUDES
GLIBCPP_EXPORT_FLAGS
# This should be done by mkincludedir, but hack around it now.
blddir=`pwd`
echo "checking for $blddir/include"
if test ! -d "$blddir/include"; then
mkdir "$blddir/include"
fi
# NB: Multilibs need MULTISUBDIR defined correctly in src/Makefile.am
# and libsupc++/Makefile.am so that multilib installs will end up
# installed in the correct place. To work around this not being passed
# down from config-ml.in -> top_srcdir/Makefile.am ->
# top_srcdir/{src,libsupc++}/Makefile.am, manually append it here.
AC_OUTPUT(tests_flags mkcheck Makefile src/Makefile libmath/Makefile libio/Makefile libsupc++/Makefile,
[if test -n "$CONFIG_FILES"; then
ac_file=Makefile . ${glibcpp_basedir}/../config-ml.in
grep '^MULTISUBDIR =' Makefile >> src/Makefile
grep '^MULTISUBDIR =' Makefile >> libsupc++/Makefile
fi
chmod +x tests_flags
chmod +x mkcheck
],
srcdir=${srcdir}
host=${host}
target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${multilib_arg} ${ac_configure_args}"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
glibcpp_basedir=${glibcpp_basedir}
CC="${CC}"
CXX="${CXX}"
)
# Generate bits/c++config.h
# NB: This must be the first generated file as others include it. . .
$srcdir/mkc++config $blddir $srcdir
# Generate bits/std_limits.h and src/limitsMEMBERS.cc
if test ! -f stamp-limits; then
$srcdir/mknumeric_limits $blddir $srcdir $xcompiling
if test ! -f include/bits/std_limits.h; then
echo "mknumeric_limits failed to execute properly: exiting"
exit 1
else
touch stamp-limits
fi
fi
# Sanity checking & User-visible messages.
# Checks down here, otherwise they get scrolled off before
# the user will notice.
# Trying to get more people to read documentation. Possibly remove
# check and warn all the time. There is no "informational" AC_MSG_
# macro, so these are going to be printed even when --quiet/--silent
# is given.
if test ! -f stamp-sanity-warned; then
touch stamp-sanity-warned
echo ""
echo "Please make certain that you read the installation information here:"
echo " faster => ${srcdir}/docs/install.html"
echo " slower => <URL:http://gcc.gnu.org/onlinedocs/libstdc++/install.html>"
echo ""
echo "and the configuration information here:"
echo " faster => ${srcdir}/docs/configopts.html"
echo " slower => <URL:http://gcc.gnu.org/onlinedocs/libstdc++/configopts.html>"
echo ""
echo "before proceeding with ${_cv_gnu_make_command}."
echo ""
fi