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gcc/libstdc++-v3/configure.in
Benjamin Kosnik e3123ab3ba configure.in: Change GLIBCPP_ENABLE_SHADOW to GLIBCPP_ENABLE_CHEADERS. 
2000-12-21  Benjamin Kosnik  <bkoz@redhat.com>

	* configure.in: Change GLIBCPP_ENABLE_SHADOW to
	GLIBCPP_ENABLE_CHEADERS.
	* acinclude.m4 (GLIBCPP_ENABLE_SHADOW): Change to
	ENABLE_CHEADERS.  C_INCLUDE_DIR defaults to c_std from c.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* include/c: Move to ...
	* include/c_std: ...here.
	* include/c_std: Move to ...
	* include/c_shadow: ...here.
	* include/c: Repopulate, with simple headers.
	* docs/html/configopts.html: Adjust docs.

From-SVN: r38432
2000-12-21 22:52:51 +00:00

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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)
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_C_MBCHAR([yes])
GLIBCPP_ENABLE_LONG_LONG([no])
GLIBCPP_ENABLE_CHEADERS([c_std])
GLIBCPP_ENABLE_THREADS
GLIBCPP_ENABLE_ATOMICITY
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
# GLIBCPP_CHECK_CTYPE_SUPPORT
ctype_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)
ctype_include_dir="config/os/newlib"
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_CTYPE_SUPPORT
GLIBCPP_CHECK_STDLIB_SUPPORT
AC_FUNC_MMAP
fi
# Now that ctype is determined for all possible targets, we can do this...
AC_LINK_FILES($ctype_include_dir/bits/ctype_base.h, \
include/bits/ctype_base.h)
AC_LINK_FILES($ctype_include_dir/bits/ctype_inline.h, \
include/bits/ctype_inline.h)
AC_LINK_FILES($ctype_include_dir/bits/ctype_noninline.h, \
include/bits/ctype_noninline.h)
AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
AC_CACHE_SAVE
AC_LC_MESSAGES
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
# Generate the various Makefiles, include files, and scripts.
# This helps subvert libstdcxx_interface, as calculated by devo/config.if
# Needed so that g++ can find the correct include subdir automatically.
INTERFACE=v3
# Check for the interface version number for specifying where header
# files are installed, if a version number is provided.
AC_MSG_CHECKING([for interface version number])
libstdcxx_interface=$INTERFACE
AC_MSG_RESULT($libstdcxx_interface)
AC_SUBST(libstdcxx_interface)
# Process the option --with-gxx-include-dir=<path to include-files directory>
AC_MSG_CHECKING([for --with-gxx-include-dir])
AC_ARG_WITH(gxx-include-dir,
[ --with-gxx-include-dir the installation directory for include files],
[case "${withval}" in
yes)
AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
gxx_include_dir=no
;;
no)
gxx_include_dir=no
;;
*)
gxx_include_dir=${withval}
;;
esac], [gxx_include_dir=no])
AC_MSG_RESULT($gxx_include_dir)
AC_SUBST(gxx_include_dir)
AM_CONDITIONAL(GXX_INCLUDE_DIR, test x${gxx_include_dir} != xno)
# Process the option "--enable-version-specific-runtime-libs"
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
AC_ARG_ENABLE(version-specific-runtime-libs,
[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
[ version_specific_libs=yes
# Need the gcc compiler version to know where to install libraries
# and header files if --enable-version-specific-runtime-libs option
# is selected.
changequote(,)dnl
gcc_tmp=`grep version_string ${srcdir}/../gcc/version.c | awk '{print $6}'`
gcc_num=`echo ${gcc_tmp} | sed 's/\"//g'`
#gcc_date=`grep version_string ${srcdir}/../gcc/version.c | awk '{print $7}'`
#gcc_version=$gcc_num-$gcc_date
gcc_version=$gcc_num
changequote([,])dnl
AC_SUBST(gcc_version)
],version_specific_libs=no)
AC_MSG_RESULT($version_specific_libs)
if test x${version_specific_libs} = xyes; then
AM_CONDITIONAL(VERSION_SPECIFIC_LIBS, test x${version_specific_libs} = xyes)
AC_MSG_WARN(version specific directory is: $gcc_version)
fi
# We have to install all the generated or linked includes files
# specified as build_headers in src/Makefile.am in a target-dependent
# place, or else multiple installs for different compilers will
# overwrite these files.
# NB: Keep this and gcc/Makefile.in's -DGPLUSPLUS_TOOL_INCLUDE_DIR in sync.
gxx_target_include_dir='$(exec_prefix)/$(target_alias)/include/g++-$(libstdcxx_interface)'
AC_SUBST(gxx_target_include_dir)
# 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 "$blddir/include"
fi
# NB: Multilibs need MULTISUBDIR defined correctly in src/Makefile.am
# so that multilib installs will end up installed in the correct
# place. To work around this not being passed down from config-ml.in
# -> top_srcdir/Makefile.am -> top_srcdir/src/Makefile.am, manually
# append it here.
AC_OUTPUT(tests_flags mkcheck Makefile src/Makefile libmath/Makefile libio/Makefile libsupc++/Makefile,
[if test -n "$CONFIG_FILES"; then
ac_file=Makefile . ${glibcpp_basedir}/../config-ml.in
grep '^MULTISUBDIR =' Makefile >> src/Makefile
fi
chmod +x tests_flags
chmod +x mkcheck
],
srcdir=${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
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