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gcc/libstdc++-v3/acinclude.m4
Benjamin Kosnik 72ed283692 acinclude.m4 (GLIBCPP_EXPORT_INSTALL_INFO): Deal with library install locations too. 
2001-02-06  Benjamin Kosnik  <bkoz@fillmore.constant.com>

	* acinclude.m4 (GLIBCPP_EXPORT_INSTALL_INFO): Deal with library
	install locations too.
	* aclocal.m4: Regeneate.
	* configure.in: Remove USE_LIBDIR.
	* configure: Regenerate.
	* src/Makefile.am (toolexecdir): Simplify, use
	glibcpp_toolexecdir, glibcpp_toolexeclibdir.
	* src/Makefile.in: Regenerate.
	* libsupc++/Makefile.am: Same.
	* libsupc++/Makefile.in: Regenerate.

	* src/Makefile.am: Just remove special rules for locale-inst.cc and
	misc-inst.cc as no longer necessary.

	Follow C++STYLE for naming non-static functions.
	* include/bits/ostream.tcc (_S_pad_char): Not static, rename to
	__pad_char.
	* include/bits/streambuf.tcc: Same.
	* include/bits/ostream.tcc: Same.
	* include/bits/istream.tcc: Same.
	* include/bits/locale_facets.tcc (_S_pad_numeric): To __pad_numeric.
	(_S_output_float): To __output_float.
	* include/bits/std_streambuf.h (_S_copy_streambufs): To
	__copy_streambufs.
	* include/bits/locale_facets.tcc (_S_build_float_format): To
	__build_float_format.
	(_S_format): To __output_integer.
	(_S_fill): To __pad.
	* src/locale.cc: Same.
	* src/misc-inst.cc: Fix formatting. Fix signature for wchar_t. Correct
	names.
	* include/bits/locale_facets.tcc (_S_group_digits): To
	__group_digits.
	* src/locale-inst.cc: Fixup names. Add use_facet instantiations
	for collate, numpunct.

From-SVN: r39508
2001-02-07 01:54:21 +00:00

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dnl
dnl Initialize configure bits.
dnl
dnl Define OPTLEVEL='-O2' if new inlining code present.
dnl
dnl GLIBCPP_CONFIGURE
AC_DEFUN(GLIBCPP_CONFIGURE, [
dnl Default to --enable-multilib
AC_ARG_ENABLE(multilib,
[ --enable-multilib build hella library versions (default)],
[case "${enableval}" in
yes) multilib=yes ;;
no) multilib=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
esac], [multilib=yes])dnl
glibcpp_basedir=$auxdir/$1/libstdc++-v3
AC_SUBST(glibcpp_basedir)
AM_INIT_AUTOMAKE(libstdc++, 2.90.8)
# Never versions of autoconf add an underscore to these functions.
# Prevent future problems ...
ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
# AC_PROG_CC
# FIXME: We temporarily define our own version of AC_PROG_CC. This is
# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
# are probably using a cross compiler, which will not be able to fully
# link an executable. This should really be fixed in autoconf
# itself.
AC_DEFUN(LIB_AC_PROG_CC,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
dnl Fool anybody using AC_PROG_CC.
AC_PROVIDE([AC_PROG_CC])
AC_CHECK_PROG(CC, gcc, gcc)
if test -z "$CC"; then
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
fi
AC_PROG_CC_GNU
if test $ac_cv_prog_gcc = yes; then
GCC=yes
dnl Check whether -g works, even if CFLAGS is set, in case the package
dnl plays around with CFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS=
AC_PROG_CC_G
if test "$ac_test_CFLAGS" = set; then
CFLAGS="$ac_save_CFLAGS"
elif test $ac_cv_prog_cc_g = yes; then
CFLAGS="-g -O2"
else
CFLAGS="-O2"
fi
else
GCC=
test "${CFLAGS+set}" = set || CFLAGS="-g"
fi
])
LIB_AC_PROG_CC
# Can't just call these here as g++ requires libstc++ to be built....
# AC_PROG_CXX
# Likewise for AC_PROG_CXX.
AC_DEFUN(LIB_AC_PROG_CXX,
[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
dnl Fool anybody using AC_PROG_CXX.
AC_PROVIDE([AC_PROG_CXX])
# Use CXX_libstdcxx so that we do not cause CXX to be cached with the
# flags that come in CXX while configuring libstdc++. They're different
# from those used for all other target libraries. If CXX is set in
# the environment, respect that here.
CXX_libstdcxx=$CXX
AC_CHECK_PROGS(CXX_libstdcxx, $CCC c++ g++ gcc CC cxx cc++, gcc)
CXX=$CXX_libstdcxx
AC_SUBST(CXX)
test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
AC_PROG_CXX_GNU
if test $ac_cv_prog_gxx = yes; then
GXX=yes
dnl Check whether -g works, even if CXXFLAGS is set, in case the package
dnl plays around with CXXFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS=
AC_PROG_CXX_G
if test "$ac_test_CXXFLAGS" = set; then
CXXFLAGS="$ac_save_CXXFLAGS"
elif test $ac_cv_prog_cxx_g = yes; then
CXXFLAGS="-g -O2"
else
CXXFLAGS="-O2"
fi
else
GXX=
test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
fi
])
LIB_AC_PROG_CXX
AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_PROG_INSTALL
AM_MAINTAINER_MODE
# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
# at least currently, we never actually build a program, so we never
# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
# fails, because we are probably configuring with a cross compiler
# which cant create executables. So we include AC_EXEEXT to keep
# automake happy, but we dont execute it, since we dont care about
# the result.
if false; then
AC_EXEEXT
fi
# configure.host sets the following important variables
# glibcpp_cflags - host specific C compiler flags
# glibcpp_cxxflags - host specific C++ compiler flags
glibcpp_cflags=
glibcpp_cxxflags=
. [$]{glibcpp_basedir}/configure.host
case [$]{glibcpp_basedir} in
/* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
*) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
esac
# This does for the target what configure.host does for the host. In
# addition to modifying the same flags, it also sets up symlinks.
GLIBCPP_CHECK_TARGET
GLIBCPP_CFLAGS="[$]{glibcpp_cflags}"
GLIBCPP_CXXFLAGS="[$]{glibcpp_cxxflags}"
AC_SUBST(GLIBCPP_CFLAGS)
AC_SUBST(GLIBCPP_CXXFLAGS)
])
dnl
dnl Check to see if g++ can compile this library, and if so, if any version-
dnl specific precautions need to be taken.
dnl
dnl GLIBCPP_CHECK_COMPILER_VERSION
AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
if test ! -f stamp-sanity-compiler; then
AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_EGREP_CPP(ok, [
#if (__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
ok
#endif
], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to gcc-2.95 or above]))
AC_LANG_RESTORE
AC_MSG_RESULT($gpp_satisfactory)
touch stamp-sanity-compiler
fi
])
dnl
dnl Test for newer compiler features, or features that are present in newer
dnl compiler version but not older compiler versions should be placed
dnl here.
dnl
dnl Define WFMT_FLAGS='-fdiagnostics-show-location=once' if possible
dnl
dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
dnl new inlining code or the new system_header pragma will die on -Werror.
dnl Leave it out by default and use maint-mode to use it.
dnl
dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
dnl compiler supports it.
dnl GLIBCPP_CHECK_COMPILER_FEATURES
AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
# All these tests are for C++; save the language and the compiler flags.
# The CXXFLAGS thing is suspicious, but based on similar bits
# found in GLIBCPP_CONFIGURE.
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
# Check for maintainer-mode bits.
if test x"$USE_MAINTAINER_MODE" = xno; then
WERROR=''
else
WERROR='-Werror'
fi
# Check for more sophisticated diagnostic control.
AC_MSG_CHECKING([for g++ that supports -fdiagnostics-show-location=once])
CXXFLAGS='-Werror -fdiagnostics-show-location=once'
AC_TRY_COMPILE(, [int foo;
], [ac_gabydiags=yes], [ac_gabydiags=no])
if test "$ac_test_CXXFLAGS" = set; then
CXXFLAGS="$ac_save_CXXFLAGS"
else
# this is the suspicious part
CXXFLAGS=''
fi
if test x"$ac_gabydiags" = x"yes"; then
WFMT_FLAGS='-fdiagnostics-show-location=once'
fi
AC_MSG_RESULT($ac_gabydiags)
# Check for -ffunction-sections -fdata-sections
AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
AC_TRY_COMPILE(, [int foo;
], [ac_fdsections=yes], [ac_fdsections=no])
if test "$ac_test_CXXFLAGS" = set; then
CXXFLAGS="$ac_save_CXXFLAGS"
else
# this is the suspicious part
CXXFLAGS=''
fi
if test x"$ac_fdsections" = x"yes" && test x"$enable_debug" = x"no"; then
SECTION_FLAGS='-ffunction-sections -fdata-sections'
fi
AC_MSG_RESULT($ac_fdsections)
AC_LANG_RESTORE
AC_SUBST(WERROR)
AC_SUBST(WFMT_FLAGS)
AC_SUBST(SECTION_FLAGS)
])
dnl
dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
dnl the native linker is in use, all variables will be defined to something
dnl safe (like an empty string).
dnl
dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
dnl
dnl GLIBCPP_CHECK_LINKER_FEATURES
AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
# If we're not using GNU ld, then there's no point in even trying these
# tests. Check for that first. We should have already tested for gld
# by now (in libtool), but require it now just to be safe...
SECTION_LDFLAGS=''
OPT_LDFLAGS=''
AC_REQUIRE([AC_PROG_LD])
# Set --gc-sections.
if test "$ac_cv_prog_gnu_ld" = "notbroken"; then
# GNU ld it is! Joy and bunny rabbits!
# All these tests are for C++; save the language and the compiler flags.
# Need to do this so that g++ won't try to link in libstdc++
ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS='-x c++ -Wl,--gc-sections'
# Check for -Wl,--gc-sections
# XXX This test is broken at the moment, as symbols required for
# linking are now in libsupc++ (not built yet.....). In addition,
# this test has cored on solaris in the past. In addition,
# --gc-sections doesn't really work at the moment (keeps on discarding
# used sections, first .eh_frame and now some of the glibc sections for
# iconv). Bzzzzt. Thanks for playing, maybe next time.
AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
AC_TRY_RUN([
int main(void)
{
try { throw 1; }
catch (...) { };
return 0;
}
], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes])
if test "$ac_test_CFLAGS" = set; then
CFLAGS="$ac_save_CFLAGS"
else
# this is the suspicious part
CFLAGS=''
fi
if test "$ac_sectionLDflags" = "yes"; then
SECTION_LDFLAGS='-Wl,--gc-sections'
fi
AC_MSG_RESULT($ac_sectionLDflags)
fi
# Set linker optimization flags.
if test x"$ac_cv_prog_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; then
OPT_LDFLAGS='-Wl,-O1'
fi
AC_SUBST(SECTION_LDFLAGS)
AC_SUBST(OPT_LDFLAGS)
])
dnl
dnl Check to see if the (math function) argument passed is
dnl declared when using the c++ compiler
dnl ASSUMES argument is a math function with ONE parameter
dnl
dnl GLIBCPP_CHECK_MATH_DECL_1
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcpp_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <math.h>],
[ $1(0);],
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
AC_LANG_RESTORE
])
fi
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
])
dnl
dnl Check to see if the (math function) argument passed is
dnl 1) declared when using the c++ compiler
dnl 2) has "C" linkage
dnl 3) if not, see if 1) and 2) for argument prepended with '_'
dnl
dnl Define HAVE_CARGF etc if "cargf" is declared and links
dnl
dnl argument 1 is name of function to check
dnl
dnl ASSUMES argument is a math function with ONE parameter
dnl
dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
GLIBCPP_CHECK_MATH_DECL_1($1)
if test x$glibcpp_cv_func_$1_use = x"yes"; then
AC_CHECK_FUNCS($1)
else
GLIBCPP_CHECK_MATH_DECL_1(_$1)
if test x$glibcpp_cv_func__$1_use = x"yes"; then
AC_CHECK_FUNCS(_$1)
fi
fi
])
dnl
dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
dnl of functions at once. It's an all-or-nothing check -- either
dnl HAVE_XYZ is defined for each of the functions, or for none of them.
dnl Doing it this way saves significant configure time.
AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
AC_MSG_CHECKING([for $1 functions])
AC_CACHE_VAL(glibcpp_cv_func_$2_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <math.h>],
[ `for x in $3; do echo "$x (0);"; done` ],
[glibcpp_cv_func_$2_use=yes],
[glibcpp_cv_func_$2_use=no])
AC_LANG_RESTORE])
AC_MSG_RESULT($glibcpp_cv_func_$2_use)
if test x$glibcpp_cv_func_$2_use = x"yes"; then
AC_CHECK_FUNCS($3)
fi
])
dnl
dnl Check to see if the (math function) argument passed is
dnl declared when using the c++ compiler
dnl ASSUMES argument is a math function with ONE parameter
dnl
dnl GLIBCPP_CHECK_MATH_DECL_2
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcpp_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <math.h>],
[ $1(0, 0);],
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
AC_LANG_RESTORE
])
fi
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
])
dnl
dnl Check to see if the (math function) argument passed is
dnl 1) declared when using the c++ compiler
dnl 2) has "C" linkage
dnl
dnl Define HAVE_CARGF etc if "cargf" is declared and links
dnl
dnl argument 1 is name of function to check
dnl
dnl ASSUMES argument is a math function with TWO parameters
dnl
dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
GLIBCPP_CHECK_MATH_DECL_2($1)
if test x$glibcpp_cv_func_$1_use = x"yes"; then
AC_CHECK_FUNCS($1)
else
GLIBCPP_CHECK_MATH_DECL_2(_$1)
if test x$glibcpp_cv_func__$1_use = x"yes"; then
AC_CHECK_FUNCS(_$1)
fi
fi
])
dnl
dnl Check to see if the (math function) argument passed is
dnl declared when using the c++ compiler
dnl ASSUMES argument is a math function with ONE parameter
dnl
dnl GLIBCPP_CHECK_MATH_DECL_3
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcpp_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <math.h>],
[ $1(0, 0, 0);],
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
AC_LANG_RESTORE
])
fi
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
])
dnl
dnl Check to see if the (math function) argument passed is
dnl 1) declared when using the c++ compiler
dnl 2) has "C" linkage
dnl
dnl Define HAVE_CARGF etc if "cargf" is declared and links
dnl
dnl argument 1 is name of function to check
dnl
dnl ASSUMES argument is a math function with THREE parameters
dnl
dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
GLIBCPP_CHECK_MATH_DECL_3($1)
if test x$glibcpp_cv_func_$1_use = x"yes"; then
AC_CHECK_FUNCS($1)
else
GLIBCPP_CHECK_MATH_DECL_3(_$1)
if test x$glibcpp_cv_func__$1_use = x"yes"; then
AC_CHECK_FUNCS(_$1)
fi
fi
])
dnl
dnl Check to see if the (stdlib function) argument passed is
dnl 1) declared when using the c++ compiler
dnl 2) has "C" linkage
dnl
dnl Define HAVE_STRTOLD if "strtold" is declared and links
dnl Define HAVE_STRTOF if "strtof" is declared and links
dnl
dnl argument 1 is name of function to check
dnl
dnl ASSUMES argument is a math function with TWO parameters
dnl
dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2
AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcpp_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <stdlib.h>],
[ $1(0, 0);],
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
AC_LANG_RESTORE
])
fi
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
if test x$glibcpp_cv_func_$1_use = x"yes"; then
AC_CHECK_FUNCS($1)
fi
])
dnl
dnl Because the builtins are picky picky picky about the arguments they take,
dnl do an explict linkage tests here.
dnl Check to see if the (math function) argument passed is
dnl 1) declared when using the c++ compiler
dnl 2) has "C" linkage
dnl
dnl Define HAVE_CARGF etc if "cargf" is declared and links
dnl
dnl argument 1 is name of function to check
dnl
dnl ASSUMES argument is a math function with ONE parameter
dnl
dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
AC_MSG_CHECKING([for $1 declaration])
if test x${glibcpp_cv_func_$1_use+set} != xset; then
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <math.h>],
[ $1(0);],
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
AC_LANG_RESTORE
])
fi
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
if test x$glibcpp_cv_func_$1_use = x"yes"; then
AC_MSG_CHECKING([for $1 linkage])
if test x${glibcpp_cv_func_$1_link+set} != xset; then
AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
AC_TRY_LINK([#include <math.h>],
[ $1(0);],
[glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
])
fi
AC_MSG_RESULT($glibcpp_cv_func_$1_link)
if test x$glibcpp_cv_func_$1_link = x"yes"; then
ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
AC_DEFINE_UNQUOTED(${ac_tr_func})
fi
fi
])
dnl
dnl Check to see what builtin math functions are supported
dnl
dnl check for __builtin_abs
dnl check for __builtin_fabsf
dnl check for __builtin_fabs
dnl check for __builtin_fabl
dnl check for __builtin_labs
dnl check for __builtin_sqrtf
dnl check for __builtin_sqrtl
dnl check for __builtin_fsqrt
dnl check for __builtin_sinf
dnl check for __builtin_sin
dnl check for __builtin_sinl
dnl check for __builtin_cosf
dnl check for __builtin_cos
dnl check for __builtin_cosl
dnl
dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
dnl Test for builtin math functions.
dnl These are made in gcc/c-common.c
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
dnl There is, without a doubt, a more elegant way to have these
dnl names exported so that they won't be stripped out of acconfig.h by
dnl autoheader. I leave this as an exercise to somebody less frustrated
dnl than I.... please email the libstdc++ list if you can figure out a
dnl more elegant approach (see autoconf/acgen.m4 and specifically
dnl AC_CHECK_FUNC for things to steal.)
dummyvar=no
if test x$dummyvar = x"yes"; then
AC_DEFINE(HAVE___BUILTIN_ABS)
AC_DEFINE(HAVE___BUILTIN_LABS)
AC_DEFINE(HAVE___BUILTIN_COS)
AC_DEFINE(HAVE___BUILTIN_COSF)
AC_DEFINE(HAVE___BUILTIN_COSL)
AC_DEFINE(HAVE___BUILTIN_FABS)
AC_DEFINE(HAVE___BUILTIN_FABSF)
AC_DEFINE(HAVE___BUILTIN_FABSL)
AC_DEFINE(HAVE___BUILTIN_SIN)
AC_DEFINE(HAVE___BUILTIN_SINF)
AC_DEFINE(HAVE___BUILTIN_SINL)
AC_DEFINE(HAVE___BUILTIN_FSQRT)
AC_DEFINE(HAVE___BUILTIN_SQRTF)
AC_DEFINE(HAVE___BUILTIN_SQRTL)
fi
])
dnl
dnl Check to see what the underlying c library
dnl These checks need to do two things:
dnl 1) make sure the name is declared when using the c++ compiler
dnl 2) make sure the name has "C" linkage
dnl This might seem like overkill but experience has shown that it's not...
dnl
dnl Define HAVE_STRTOF etc if "strtof" is found.
dnl Define HAVE_STRTOLD etc if "strtold" is found.
dnl
dnl GLIBCPP_CHECK_STDLIB_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
AC_CHECK_FUNCS(strtof)
GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
CXXFLAGS="$ac_save_CXXFLAGS"
])
dnl
dnl Check to see what the underlying c library or math library is like.
dnl These checks need to do two things:
dnl 1) make sure the name is declared when using the c++ compiler
dnl 2) make sure the name has "C" linkage
dnl This might seem like overkill but experience has shown that it's not...
dnl
dnl Define HAVE_CARGF etc if "cargf" is found.
dnl
dnl GLIBCPP_CHECK_MATH_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
dnl Check libm
AC_CHECK_LIB(m, sin, libm="-lm")
ac_save_LIBS="$LIBS"
LIBS="$LIBS $libm"
dnl Check to see if certain C math functions exist.
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
dnl Check to see if basic C math functions have float versions.
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
float_trig,
acosf asinf atanf \
cosf sinf tanf \
coshf sinhf tanhf)
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
float_round,
ceilf floorf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
dnl Check to see if basic C math functions have long double versions.
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
long_double_trig,
acosl asinl atanl \
cosl sinl tanl \
coshl sinhl tanhl)
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
long_double_round,
ceill floorl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
dnl Some runtimes have these functions with a preceding underscore. Please
dnl keep this sync'd with the one above. And if you add any new symbol,
dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
dnl Check to see if certain C math functions exist.
dnl Check to see if basic C math functions have float versions.
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
_float_trig,
_acosf _asinf _atanf \
_cosf _sinf _tanf \
_coshf _sinhf _tanhf)
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
_float_round,
_ceilf _floorf)
dnl Check to see if basic C math functions have long double versions.
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
_long_double_trig,
_acosl _asinl _atanl \
_cosl _sinl _tanl \
_coshl _sinhl _tanhl)
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
_long_double_round,
_ceill _floorl)
LIBS="$ac_save_LIBS"
CXXFLAGS="$ac_save_CXXFLAGS"
])
dnl
dnl Check to see if there is native support for complex
dnl
dnl Don't compile bits in math/* if native support exits.
dnl
dnl Define USE_COMPLEX_LONG_DOUBLE etc if "atan2l/copysignl" is found.
dnl
dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
dnl Check for complex versions of math functions of platform.
AC_CHECK_LIB(m, main)
AC_REPLACE_MATHFUNCS(nan hypot hypotf atan2f expf copysignf)
dnl Compile the long double complex functions only if the function
dnl provides the non-complex long double functions that are needed.
dnl Currently this includes copysignl and atan2l, which should be
dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
USE_COMPLEX_LONG_DOUBLE=no
if test x$ac_cv_func_atan2l = x"yes" \
&& test x$ac_cv_func_copysignl = x"yes"; then
USE_COMPLEX_LONG_DOUBLE=yes
AC_REPLACE_MATHFUNCS(hypotl signbitl)
fi
AC_SUBST(USE_COMPLEX_LONG_DOUBLE)
])
dnl Check to see what architecture and operating system we are compiling
dnl for. Also, if architecture- or OS-specific flags are required for
dnl compilation, pick them up here.
dnl
dnl GLIBCPP_CHECK_TARGET
AC_DEFUN(GLIBCPP_CHECK_TARGET, [
. [$]{glibcpp_basedir}/configure.target
AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
AC_MSG_RESULT(OS config directory is $os_include_dir)
AC_LINK_FILES($os_include_dir/bits/os_defines.h, include/bits/os_defines.h)
])
dnl
dnl Check to see if this target can enable the wchar_t parts of libstdc++.
dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
dnl must have been previously checked.)
dnl
dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
dnl
dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
dnl Test wchar.h for mbstate_t, which is needed for char_traits and
dnl others even if wchar_t support is not on.
AC_MSG_CHECKING([for mbstate_t])
AC_TRY_COMPILE([#include <wchar.h>],
[mbstate_t teststate;],
have_mbstate_t=yes, have_mbstate_t=no)
AC_MSG_RESULT($have_mbstate_t)
if test x"$have_mbstate_t" = xyes; then
AC_DEFINE(HAVE_MBSTATE_T)
fi
dnl Sanity check for existence of ISO C99 headers for extended encoding.
AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
dnl Only continue checking if the ISO C99 headers exist and support is on.
if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes \
&& test x"$enable_c_mbchar" != xno; then
dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
dnl numeric_limits can instantiate type_traits<wchar_t>
AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
AC_TRY_COMPILE([#include <wchar.h>],
[int i = WCHAR_MIN; int j = WCHAR_MAX;],
has_wchar_minmax=yes, has_wchar_minmax=no)
AC_MSG_RESULT($has_wchar_minmax)
dnl Test wchar.h for WEOF, which is what we use to determine whether
dnl to specialize for char_traits<wchar_t> or not.
AC_MSG_CHECKING([for WEOF])
AC_TRY_COMPILE([
#include <wchar.h>
#include <stddef.h>],
[wint_t i = WEOF;],
has_weof=yes, has_weof=no)
AC_MSG_RESULT($has_weof)
dnl Tests for wide character functions used in char_traits<wchar_t>.
AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset \
wcsrtombs mbsrtowcs, ac_wfuncs=yes, ac_wfuncs=no)
AC_MSG_CHECKING([for ISO C99 wchar_t support])
if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes \
&& test x"$ac_wfuncs" = xyes; then
ac_isoC99_wchar_t=yes
else
ac_isoC99_wchar_t=no
fi
AC_MSG_RESULT($ac_isoC99_wchar_t)
dnl Use iconv for wchar_t to char conversions. As such, check for
dnl X/Open Portability Guide, version 2 features (XPG2).
AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
ac_save_LIBS="$LIBS"
LIBS="$LIBS $libiconv"
AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
ac_XPG2funcs=yes, ac_XPG2funcs=no)
LIBS="$ac_save_LIBS"
AC_MSG_CHECKING([for XPG2 wchar_t support])
if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes \
&& test x"$ac_XPG2funcs" = xyes; then
ac_XPG2_wchar_t=yes
else
ac_XPG2_wchar_t=no
fi
AC_MSG_RESULT($ac_XPG2_wchar_t)
dnl At the moment, only enable wchar_t specializations if all the
dnl above support is present.
AC_MSG_CHECKING([for enabled wchar_t specializations])
if test x"$ac_isoC99_wchar_t" = xyes \
&& test x"$ac_XPG2_wchar_t" = xyes; then
libinst_wstring_la="libinst-wstring.la"
AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
AC_MSG_RESULT("yes")
else
libinst_wstring_la=""
AC_MSG_RESULT("no")
fi
AC_SUBST(libinst_wstring_la)
else
dnl Wide characters disabled by the user.
AC_MSG_WARN([wchar_t support disabled.])
fi
])
dnl
dnl Check to see if this version of GNU C++ is afflicted by bugs in
dnl __complex__ float support.
dnl
dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy.
dnl
dnl Check to see if this version of GNU C++ is afflicted by bugs in
dnl __complex__ support.Check for buggy __complex__ that will cause ICE in
dnl gcc-2.95.x when using the library, unless we define the default copy
dnl ctor in the specializations of complex<>.
dnl
dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy.
dnl GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT, [
AC_REQUIRE([AC_PROG_CXX])
AC_MSG_CHECKING([for GNU C++ __complex__ support])
AC_CACHE_VAL(glibcpp_cv_complex, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \
dcomplex f(const dcomplex& x) { return dcomplex(x); }], \
[ dcomplex x; f(x); ],
glibcpp_cv_complex=ok,
glibcpp_cv_complex=buggy
)
AC_LANG_RESTORE
])
AC_MSG_RESULT($glibcpp_cv_complex)
if test $glibcpp_cv_complex = buggy; then
AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX)
fi
AC_MSG_CHECKING([for GNU C++ __complex__ float support])
AC_CACHE_VAL(glibcpp_cv_float_complex, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
rm -f conftest.h
cat > conftest.h <<EOB
//
// Check for buggy __complex__ that causes ICE in most versions of egcs
// and gcc-2.95.x on certain platforms (eg., x86-win32).
//
// See http://gcc.gnu.org/ml/gcc-bugs/1999-07n/msg00845.html for
// more info on the bug itself.
//
struct
float_complex
{
__complex__ float m_value;
float_complex (float = 0.0f, float = 0.0f);
float_complex (__complex__ float val) : m_value (val) {}
float_complex foo (const float_complex &val)
{ return float_complex (~val.m_value); }
};
EOB
AC_TRY_COMPILE([#include "conftest.h"], ,
glibcpp_cv_float_complex=ok,
glibcpp_cv_float_complex=buggy
)
AC_LANG_RESTORE
])
AC_MSG_RESULT($glibcpp_cv_float_complex)
if test $glibcpp_cv_float_complex = buggy; then
AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX)
fi
])
dnl
dnl Check for special debugging mode; not for production use.
dnl
dnl GLIBCPP_ENABLE_DEBUG
dnl --enable-debug sets '-ggdb3 -O0'.
dnl --disable-debug sets '-g' and whatever optimization options the
dnl compiler can handle.
dnl + --enable-maintainer-mode automatically defaults this to on.
dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
dnl defaults to `no'.
AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
AC_ARG_ENABLE(debug,
changequote(<<, >>)dnl
<< --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
changequote([, ])dnl
[case "${enableval}" in
yes) enable_debug=yes ;;
no) enable_debug=no ;;
*) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
esac],
enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
dnl Option parsed, now set things appropriately
case "${enable_debug}" in
yes)
DEBUG_FLAGS='-O0 -ggdb3'
;;
no)
DEBUG_FLAGS='-g'
;;
esac
AC_SUBST(DEBUG_FLAGS)
])
dnl
dnl Check for "unusual" flags to pass to the compiler while building.
dnl
dnl GLIBCPP_ENABLE_CXX_FLAGS
dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
dnl Somehow this same set of flags must be passed when [re]building
dnl libgcc.
dnl --disable-cxx-flags passes nothing.
dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
dnl If "default flags" is an empty string (or "none"), the effect is
dnl the same as --disable or --enable=no.
AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
AC_ARG_ENABLE(cxx-flags,
changequote(<<, >>)dnl
<< --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
[default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
changequote([, ])dnl
[case "x$enableval" in
xyes)
AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
xno|x)
enable_cxx_flags='' ;;
*)
enable_cxx_flags="$enableval" ;;
esac],
enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')
dnl Thinko on my part during design. This kludge is the workaround.
if test "$enable_cxx_flags" = "none"; then
enable_cxx_flags='';
fi
dnl Run through flags (either default or command-line) and set anything
dnl extra (e.g., #defines) that must accompany particular g++ options.
if test -n "$enable_cxx_flags"; then
for f in $enable_cxx_flags; do
case "$f" in
-fhonor-std) ;;
-*) ;;
*) # and we're trying to pass /what/ exactly?
AC_MSG_ERROR([compiler flags start with a -]) ;;
esac
done
fi
EXTRA_CXX_FLAGS="$enable_cxx_flags"
AC_SUBST(EXTRA_CXX_FLAGS)
])
dnl
dnl Check for which locale library to use: gnu or generic.
dnl
dnl GLIBCPP_ENABLE_CLOCALE
dnl --enable-clocale=gnu sets config/c_locale_gnu.cc and friends
dnl --enable-clocale=generic sets config/c_locale_generic.cc and friends
dnl
dnl default is generic
dnl
AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
AC_MSG_CHECKING([for clocale to use])
AC_ARG_ENABLE(clocale,
[ --enable-clocale enable model for target locale package.
--enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
],
if test x$enable_clocale = xno; then
enable_clocale=generic
fi,
enable_clocale=generic)
enable_clocale_flag=$enable_clocale
dnl Check if a valid locale package
case x${enable_clocale_flag} in
xgnu)
CLOCALE_H=config/c_locale_gnu.h
CLOCALE_CC=config/c_locale_gnu.cc
AC_MSG_RESULT(gnu)
;;
xgeneric)
CLOCALE_H=config/c_locale_generic.h
CLOCALE_CC=config/c_locale_generic.cc
AC_MSG_RESULT(generic)
;;
*)
echo "$enable_clocale is an unknown locale package" 1>&2
exit 1
;;
esac
AC_LINK_FILES($CLOCALE_H, include/bits/c++locale.h)
AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc)
])
dnl
dnl Check for which I/O library to use: libio, or something specific.
dnl
dnl GLIBCPP_ENABLE_CSTDIO
dnl --enable-cstdio=libio sets config/c_io_libio.h and friends
dnl
dnl default is stdio
dnl
AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
AC_MSG_CHECKING([for cstdio to use])
AC_ARG_ENABLE(cstdio,
[ --enable-cstdio enable stdio for target io package.
--enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
],
if test x$enable_cstdio = xno; then
enable_cstdio=stdio
fi,
enable_cstdio=stdio)
enable_cstdio_flag=$enable_cstdio
dnl Check if a valid I/O package
case x${enable_cstdio_flag} in
xlibio)
CSTDIO_H=config/c_io_libio.h
CSTDIO_CC=config/c_io_libio.cc
AC_MSG_RESULT(libio)
# see if we are on a system with libio native (ie, linux)
AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
# Need to check and see what version of glibc is being used. If
# it's not glibc-2.2 or higher, then we'll need to go ahead and
# compile most of libio for linux systems.
if test x$has_libio = x"yes"; then
case "$target" in
*-*-linux*)
AC_MSG_CHECKING([for glibc version >= 2.2])
AC_EGREP_CPP([ok], [
#include <features.h>
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
ok
#endif
], glibc_satisfactory=yes, glibc_satisfactory=no)
AC_MSG_RESULT($glibc_satisfactory)
;;
esac
# XXX at the moment, admit defeat and force the recompilation
# XXX of glibc even on glibc-2.2 systems, because libio is not synched.
glibc_satisfactory=no
if test x$glibc_satisfactory = x"yes"; then
need_libio=no
need_wlibio=no
else
need_libio=yes
# bkoz XXX need to add checks to enable this
# pme XXX here's a first pass at such a check
if test x$enable_c_mbchar != xno; then
need_wlibio=yes
else
need_wlibio=no
fi
fi
else
# Using libio, but <libio.h> doesn't exist on the target system. . .
need_libio=yes
# bkoz XXX need to add checks to enable this
# pme XXX here's a first pass at such a check
if test x$enable_c_mbchar != xno; then
need_wlibio=yes
else
need_wlibio=no
fi
fi
;;
xstdio | x | xno | xnone | xyes)
# default
CSTDIO_H=config/c_io_stdio.h
CSTDIO_CC=config/c_io_stdio.cc
AC_MSG_RESULT(stdio)
# We're not using stdio.
need_libio=no
need_wlibio=no
# Wide characters are not supported with this package.
enable_c_mbchar=no
;;
*)
echo "$enable_cstdio is an unknown io package" 1>&2
exit 1
;;
esac
AC_LINK_FILES($CSTDIO_H, include/bits/c++io.h)
AC_LINK_FILES($CSTDIO_CC, src/c++io.cc)
# 2000-08-04 bkoz hack
CCODECVT_C=config/c_io_libio_codecvt.c
AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c)
# 2000-08-04 bkoz hack
AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
test "$need_libio" = yes || test "$need_wlibio" = yes)
AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
if test "$need_libio" = yes || test "$need_wlibio" = yes; then
libio_la=../libio/libio.la
else
libio_la=
fi
AC_SUBST(libio_la)
])
dnl
dnl Check for which threading library to use.
dnl
dnl GLIBCPP_ENABLE_THREADS
dnl --enable-threads=posix sets config/threads-posix.h et. al.
dnl
dnl Default is no threads, which also disables _IO_MTSAFE_IO in
dnl libio. Any actual thread package will enable it.
dnl
AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
dnl Note this comes from the gcc/config.in and libjava/config.in
dnl Efforts should be made to keep this in sync.
AC_MSG_CHECKING([for threads package to use])
AC_ARG_ENABLE(threads,
[ --enable-threads enable thread usage for target GCC.
--enable-threads=LIB use LIB thread package for target GCC. [default=no]
],
if test x$enable_threads = xno; then
enable_threads=''
fi,
enable_threads='')
enable_threads_flag=$enable_threads
dnl Check if a valid thread package
case x${enable_threads_flag} in
x | xno | xnone)
# No threads
target_thread_file='single'
;;
xyes)
# default
target_thread_file='posix'
;;
xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
xsolaris | xwin32 | xdce | xvxworks)
target_thread_file=$enable_threads_flag
;;
*)
echo "$enable_threads is an unknown thread package" 1>&2
exit 1
;;
esac
dnl Check for thread package actually supported in libstdc++
THREADH=
case "$target_thread_file" in
no | none | single)
THREADH=threads-no.h
;;
posix | pthreads)
THREADH=threads-posix.h
;;
decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
AC_MSG_ERROR(thread package $THREADS not yet supported)
;;
*)
AC_MSG_ERROR($THREADS is an unsupported/unknown thread package)
;;
esac
AC_MSG_RESULT($THREADH)
AC_LINK_FILES(config/$THREADH, include/bits/c++threads.h)
if test $THREADH != threads-no.h; then
AC_DEFINE(_GLIBCPP_USE_THREADS)
fi
])
dnl
dnl Check for template specializations for the 'long long' type extension.
dnl
dnl GLIBCPP_ENABLE_LONG_LONG
dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
dnl defaults to `no'.
dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
dnl
dnl GLIBCPP_ENABLE_LONG_LONG
AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
AC_ARG_ENABLE(long-long,
changequote(<<, >>)dnl
<<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
changequote([, ])dnl
[case "$enableval" in
yes) enable_long_long=yes ;;
no) enable_long_long=no ;;
*) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
esac],
enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
# Allow use of os-dependent settings, so that macros that turn on
# C99 capabilities can be defined and used in a consistent way.
OS_INC_PATH=${srcdir}/$os_include_dir
ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS="-I$OS_INC_PATH"
# Check for the existence of functions used if long long is enabled.
AC_CHECK_FUNC(strtoll,,ac_strtoll=no)
AC_CHECK_FUNC(strtoull,,ac_strtoull=no)
# Check for lldiv_t, et. al.
AC_MSG_CHECKING([for lldiv_t declaration])
AC_CACHE_VAL(glibcpp_lldiv_t_use, [
AC_TRY_COMPILE([#include <bits/os_defines.h>
#include <stdlib.h>],
[ lldiv_t mydivt;],
[glibcpp_lldiv_t_use=yes], [glibcpp_lldiv_t_use=no])
])
AC_MSG_RESULT($glibcpp_lldiv_t_use)
if test x$glibcpp_lldiv_t_use = x"yes"; then
AC_DEFINE(HAVE_LLDIV_T)
fi
AC_MSG_CHECKING([for enabled long long])
if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then
enable_long_long=no;
fi;
AC_MSG_RESULT($enable_long_long)
# Option parsed, now set things appropriately
if test x"$enable_long_long" = xyes; then
AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
fi
# Reset CFLAGS
CFLAGS="$ac_save_CFLAGS"
])
dnl
dnl Check for what kind of C headers to use.
dnl
dnl GLIBCPP_ENABLE_CHEADERS
dnl --enable-cheaders= [does stuff].
dnl --disable-cheaders [does not do anything, really].
dnl + This will eventually need to be 'c_shadow' by default.
dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'.
dnl If ommitted, it defaults to `c_std'.
AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
AC_MSG_CHECKING([for c header strategy to use])
AC_ARG_ENABLE(cheaders,
changequote(<<, >>)dnl
<< --enable-cheaders construct "C" header files for
g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
changequote([, ])
[case "$enableval" in
c)
enable_cheaders=c
;;
c_std)
enable_cheaders=c_std
;;
c_shadow)
enable_cheaders=c_shadow
;;
*) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
;;
esac],
enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
AC_MSG_RESULT($enable_cheaders)
dnl Option parsed, now set things appropriately
case "$enable_cheaders" in
c_shadow)
CSHADOW_FLAGS="-fno-builtin"
C_INCLUDE_DIR='${top_srcdir}/include/c_shadow'
AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS)
;;
c_std)
CSHADOW_FLAGS=""
C_INCLUDE_DIR='${top_srcdir}/include/c_std'
;;
c)
CSHADOW_FLAGS=""
C_INCLUDE_DIR='${top_srcdir}/include/c'
;;
esac
AC_SUBST(CSHADOW_FLAGS)
AC_SUBST(C_INCLUDE_DIR)
AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow)
])
dnl
dnl Check for wide character support. Has the same effect as the option
dnl in gcc's configure, but in a form that autoconf can mess with.
dnl
dnl GLIBCPP_ENABLE_C_MBCHAR
dnl --enable-c-mbchar requests all the wchar_t stuff.
dnl --disable-c-mbchar doesn't.
dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
dnl defaults to `no'.
AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
AC_ARG_ENABLE(c-mbchar,
changequote(<<, >>)dnl
<< --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
changequote([, ])dnl
[case "$enableval" in
yes) enable_c_mbchar=yes ;;
no) enable_c_mbchar=no ;;
*) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
esac],
enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
])
dnl
dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
dnl
dnl GLIBCPP_INCLUDE_DIR
dnl C_INCLUDE_DIR
dnl TOPLEVEL_INCLUDES
dnl LIBMATH_INCLUDES
dnl LIBSUPCXX_INCLUDES
dnl LIBIO_INCLUDES
dnl CSHADOW_INCLUDES
dnl
dnl GLIBCPP_EXPORT_INCLUDE
AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
# Root level of the include sources.
GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include'
# Can either use include/c or include/c_std to grab "C" headers. This
# variable is set to the include directory currently in use.
# set with C_INCLUDE_DIR in GLIBCPP_ENABLE_CHEADERS
# Passed down for canadian crosses.
if test x"$CANADIAN" = xyes; then
TOPLEVEL_INCLUDES='-I$(includedir)'
fi
LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
#if GLIBCPP_NEED_LIBIO
LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
#else
#LIBIO_INCLUDES='-I$(top_srcdir)/libio'
#endif
#if GLIBCPP_USE_CSHADOW
# CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \
# -I$(top_blddir)/cshadow'
#else
CSTD_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)'
#endif
# Now, export this to all the little Makefiles....
AC_SUBST(GLIBCPP_INCLUDE_DIR)
AC_SUBST(TOPLEVEL_INCLUDES)
AC_SUBST(LIBMATH_INCLUDES)
AC_SUBST(LIBSUPCXX_INCLUDES)
AC_SUBST(LIBIO_INCLUDES)
AC_SUBST(CSTD_INCLUDES)
])
dnl
dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
dnl
AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
# Optimization flags that are probably a good idea for thrill-seekers. Just
# uncomment the lines below and make, everything else is ready to go...
# OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
OPTIMIZE_CXXFLAGS=
AC_SUBST(OPTIMIZE_CXXFLAGS)
WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
AC_SUBST(WARN_FLAGS)
])
dnl
dnl GLIBCPP_EXPORT_INSTALL_INFO
dnl calculates gxx_install_dir
dnl exports glibcpp_toolexecdir
dnl exports glibcpp_toolexeclibdir
dnl
dnl Assumes cross_compiling bits already done, and with_cross_host in
dnl particular
dnl
dnl GLIBCPP_EXPORT_INSTALL_INFO
AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
glibcpp_toolexecdir=no
glibcpp_toolexeclibdir=no
AC_MSG_CHECKING([for interface version number])
libstdcxx_interface=$INTERFACE
AC_MSG_RESULT($libstdcxx_interface)
# Process the option --with-gxx-include-dir=<path to include-files directory>
AC_MSG_CHECKING([for --with-gxx-include-dir])
AC_ARG_WITH(gxx-include-dir,
[ --with-gxx-include-dir the installation directory for include files],
[case "${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)
# 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_version_trigger=${srcdir}/../gcc/version.c
gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++
glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}
changequote([,])dnl
],version_specific_libs=no)
AC_MSG_RESULT($version_specific_libs)
# Default case for install directory for include files.
if test x"$version_specific_libs" = x"no" \
&& test x"$gxx_include_dir"=x"no"; then
gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface}
fi
# Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
# Install a library built with a cross compiler in tooldir, not libdir.
if test x"$glibcpp_toolexecdir" = x"no"; then
if test x"$with_cross_host" = x"yes"; then
glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
else
glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
fi
fi
AC_MSG_CHECKING([for install location])
AC_MSG_RESULT($gxx_include_dir)
AC_SUBST(gxx_include_dir)
AC_SUBST(glibcpp_toolexecdir)
AC_SUBST(glibcpp_toolexeclibdir)
])
# Check whether LC_MESSAGES is available in <locale.h>.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
# This file file be copied and used freely without restrictions. It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.
# serial 1
AC_DEFUN(AC_LC_MESSAGES, [
AC_CHECK_HEADER(locale.h, [
AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
[AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
if test $ac_cv_val_LC_MESSAGES = yes; then
AC_DEFINE(HAVE_LC_MESSAGES)
fi
])
])
# Check for functions in math library.
# Ulrich Drepper <drepper@cygnus.com>, 1998.
#
# This file can be copied and used freely without restrictions. It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.
# serial 1
dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
AC_DEFUN(AC_REPLACE_MATHFUNCS,
[AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])
AC_SUBST(LIBMATHOBJS)dnl
])
# Check for string functions.
# Ulrich Drepper <drepper@cygnus.com>, 1998.
#
# This file can be copied and used freely without restrictions. It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.
# serial 1
dnl AC_REPLACE_STRINGFUNCS(FUNCTION...)
AC_DEFUN(AC_REPLACE_STRINGFUNCS,
[AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"])
AC_SUBST(LIBSTRINGOBJS)dnl
])
dnl This macro searches for a GNU version of make. If a match is found, the
dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
dnl set to "#". This is useful for including a special features in a Makefile,
dnl which cannot be handled by other versions of make. The variable
dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
dnl the empty string otherwise.
dnl
dnl Here is an example of its use:
dnl
dnl Makefile.in might contain:
dnl
dnl # A failsafe way of putting a dependency rule into a makefile
dnl $(DEPEND):
dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
dnl
dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
dnl @ifGNUmake@ include $(DEPEND)
dnl @ifGNUmake@ endif
dnl
dnl Then configure.in would normally contain:
dnl
dnl CHECK_GNU_MAKE()
dnl AC_OUTPUT(Makefile)
dnl
dnl Then perhaps to cause gnu make to override any other make, we could do
dnl something like this (note that GNU make always looks for GNUmakefile first):
dnl
dnl if ! test x$_cv_gnu_make_command = x ; then
dnl mv Makefile GNUmakefile
dnl echo .DEFAULT: > Makefile ;
dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
dnl fi
dnl
dnl Then, if any (well almost any) other make is called, and GNU make also
dnl exists, then the other make wraps the GNU make.
dnl
dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
dnl
dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
dnl #### conditional's subshell (" --version" is not a command), using a
dnl #### different option to grep(1).
dnl #### -pme
dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
dnl #### ${MAKE:-make}).
dnl #### -msokolov
AC_DEFUN(
GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
_cv_gnu_make_command='' ;
dnl Search all the common names for GNU make
for a in "${MAKE-make}" make gmake gnumake ; do
if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
then
_cv_gnu_make_command=$a ;
break;
fi
done ;
) ;
dnl If there was a GNU version, then set @ifGNUmake@ to the empty
dnl string, '#' otherwise
if test "x$_cv_gnu_make_command" != "x" ; then
ifGNUmake='' ;
else
ifGNUmake='#' ;
fi
AC_SUBST(ifGNUmake)
])
sinclude(../libtool.m4)
dnl The lines below arrange for aclocal not to bring an installed
dnl libtool.m4 into aclocal.m4, while still arranging for automake to
dnl add a definition of LIBTOOL to Makefile.in.
ifelse(,,,[AC_SUBST(LIBTOOL)
AC_DEFUN([AM_PROG_LIBTOOL])
AC_DEFUN([AC_LIBTOOL_DLOPEN])
AC_DEFUN([AC_PROG_LD])
])
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