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bda243ec50
2003-07-14 Paolo Carlini <pcarlini@unitus.it> Nathan C. Myers <ncm-nospam@cantrip.org> PR libstdc++/11378 * include/std/std_fstream.h (xsputn): Declare only. * include/bits/fstream.tcc (xsputn): Define, optimize for the always_noconv() case: when __n is sufficiently large flush the buffer and issue a direct write, if possible combining the two with writev in __basic_file<>::xsputn_2. * config/io/basic_file_stdio.h (__basic_file<>::xsputn_2): New, declare. * config/io/basic_file_stdio.cc (__basic_file<>::xsputn_2): Define. * acinclude.m4 (GLIBCXX_CHECK_WRITE): New macro, checking for the availability of writev in <sys/uio.h>. * configure.in: Call here. * acconfig.h: Add undef for the corresponding symbol. * aclocal.m4: Regenerate. * configure: Regenerate. * config.h.in: Regenerate. * testsuite/27_io/basic_filebuf/setbuf/char/3.cc: Tweak. * include/std/std_fstream.h (sync): Constify a variable. Co-Authored-By: Nathan C. Myers <ncm-nospam@cantrip.org> From-SVN: r69341
2328 lines
78 KiB
Plaintext
2328 lines
78 KiB
Plaintext
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dnl Default to --enable-multilib (this is also passed by default
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esac], [multilib=yes])dnl
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glibcxx_CXX=$CXX
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AC_CHECK_PROGS(glibcxx_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
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CXX=$glibcxx_CXX
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test -z "$glibcxx_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
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dnl Check whether -g works, even if CXXFLAGS is set, in case the package
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dnl normal versions of a library), tasteless as that idea is.
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CXXFLAGS="-g -O2"
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fi
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else
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test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
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fi
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])
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LIB_AC_PROG_CXX
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# For directory versioning (e.g., headers) and other variables.
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gcc_version=`$glibcxx_CXX -dumpversion`
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AC_MSG_RESULT($gcc_version)
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# For some reason, gettext needs this.
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AC_ISC_POSIX
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AC_CHECK_TOOL(AS, as)
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AC_CHECK_TOOL(AR, ar)
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AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
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AC_PROG_INSTALL
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# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
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# at least currently, we never actually build a program, so we never
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# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
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# fails, because we are probably configuring with a cross compiler
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# which can't create executables. So we include AC_EXEEXT to keep
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# automake happy, but we don't execute it, since we don't care about
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# the result.
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if false; then
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# autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
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:
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AC_EXEEXT
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fi
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esac
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#enable_cheaders=c
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])
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AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
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AC_TRY_COMPILE(, [
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#if __GNUC__ < 3
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not_ok
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#endif
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], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above]))
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])
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dnl
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CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
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dnl
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# this test has cored on solaris in the past. In addition,
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# --gc-sections doesn't really work at the moment (keeps on discarding
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|
||
GLIBCXX_CHECK_MATH_DECL_1($1)
|
||
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
else
|
||
GLIBCXX_CHECK_MATH_DECL_1(_$1)
|
||
if test x$glibcxx_cv_func__$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS(_$1)
|
||
fi
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Like GLIBCXX_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(GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1, [
|
||
AC_MSG_CHECKING([for $1 functions])
|
||
AC_CACHE_VAL(glibcxx_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` ],
|
||
[glibcxx_cv_func_$2_use=yes],
|
||
[glibcxx_cv_func_$2_use=no])
|
||
AC_LANG_RESTORE])
|
||
AC_MSG_RESULT($glibcxx_cv_func_$2_use)
|
||
if test x$glibcxx_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 TWO parameters
|
||
dnl
|
||
dnl GLIBCXX_CHECK_MATH_DECL_2
|
||
AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_2, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[ $1(0, 0);],
|
||
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcxx_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 GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2
|
||
AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2, [
|
||
GLIBCXX_CHECK_MATH_DECL_2($1)
|
||
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
else
|
||
GLIBCXX_CHECK_MATH_DECL_2(_$1)
|
||
if test x$glibcxx_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 THREE parameters
|
||
dnl
|
||
dnl GLIBCXX_CHECK_MATH_DECL_3
|
||
AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_3, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[ $1(0, 0, 0);],
|
||
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcxx_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 GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3
|
||
AC_DEFUN(GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3, [
|
||
GLIBCXX_CHECK_MATH_DECL_3($1)
|
||
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
else
|
||
GLIBCXX_CHECK_MATH_DECL_3(_$1)
|
||
if test x$glibcxx_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 argument 1 is name of function to check
|
||
dnl
|
||
dnl ASSUMES argument is a math function with TWO parameters
|
||
dnl
|
||
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2
|
||
AC_DEFUN(GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[ $1(0, 0);],
|
||
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
|
||
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
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 argument 1 is name of function to check
|
||
dnl
|
||
dnl ASSUMES argument is a function with THREE parameters
|
||
dnl
|
||
dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3
|
||
AC_DEFUN(GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[ $1(0, 0, 0);],
|
||
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
|
||
if test x$glibcxx_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 GLIBCXX_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
|
||
AC_DEFUN(GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcxx_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[ $1(0);],
|
||
[glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcxx_cv_func_$1_use)
|
||
if test x$glibcxx_cv_func_$1_use = x"yes"; then
|
||
AC_MSG_CHECKING([for $1 linkage])
|
||
if test x${glibcxx_cv_func_$1_link+set} != xset; then
|
||
AC_CACHE_VAL(glibcxx_cv_func_$1_link, [
|
||
AC_TRY_LINK([#include <math.h>],
|
||
[ $1(0);],
|
||
[glibcxx_cv_func_$1_link=yes], [glibcxx_cv_func_$1_link=no])
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcxx_cv_func_$1_link)
|
||
if test x$glibcxx_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_sqrt
|
||
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 GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
|
||
AC_DEFUN(GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT, [
|
||
dnl Test for builtin math functions.
|
||
dnl These are made in gcc/c-common.c
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
|
||
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrt)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
|
||
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
|
||
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
|
||
GLIBCXX_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
|
||
GLIBCXX_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$dummyvar = x"yes"; then
|
||
AC_DEFINE(HAVE___BUILTIN_ABS)
|
||
AC_DEFINE(HAVE___BUILTIN_LABS)
|
||
AC_DEFINE(HAVE___BUILTIN_COS)
|
||
AC_DEFINE(HAVE___BUILTIN_COSF)
|
||
AC_DEFINE(HAVE___BUILTIN_COSL)
|
||
AC_DEFINE(HAVE___BUILTIN_FABS)
|
||
AC_DEFINE(HAVE___BUILTIN_FABSF)
|
||
AC_DEFINE(HAVE___BUILTIN_FABSL)
|
||
AC_DEFINE(HAVE___BUILTIN_SIN)
|
||
AC_DEFINE(HAVE___BUILTIN_SINF)
|
||
AC_DEFINE(HAVE___BUILTIN_SINL)
|
||
AC_DEFINE(HAVE___BUILTIN_SQRT)
|
||
AC_DEFINE(HAVE___BUILTIN_SQRTF)
|
||
AC_DEFINE(HAVE___BUILTIN_SQRTL)
|
||
fi
|
||
])
|
||
|
||
dnl
|
||
dnl Check to see what the underlying c library is like
|
||
dnl These checks need to do two things:
|
||
dnl 1) make sure the name is declared when using the c++ compiler
|
||
dnl 2) make sure the name has "C" linkage
|
||
dnl This might seem like overkill but experience has shown that it's not...
|
||
dnl
|
||
dnl Define HAVE_STRTOLD if "strtold" is declared and links
|
||
dnl Define HAVE_STRTOF if "strtof" is declared and links
|
||
dnl Define HAVE_DRAND48 if "drand48" is declared and links
|
||
dnl
|
||
dnl GLIBCXX_CHECK_STDLIB_SUPPORT
|
||
AC_DEFUN(GLIBCXX_CHECK_STDLIB_SUPPORT, [
|
||
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
||
ac_save_CXXFLAGS="$CXXFLAGS"
|
||
CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
|
||
|
||
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
|
||
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
|
||
AC_CHECK_FUNCS(drand48)
|
||
|
||
CXXFLAGS="$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 GLIBCXX_CHECK_MATH_SUPPORT
|
||
AC_DEFUN(GLIBCXX_CHECK_MATH_SUPPORT, [
|
||
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
||
ac_save_CXXFLAGS="$CXXFLAGS"
|
||
CXXFLAGS='-fno-builtin -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.
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
|
||
|
||
dnl Check to see if basic C math functions have float versions.
|
||
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
|
||
float_trig,
|
||
acosf asinf atanf \
|
||
cosf sinf tanf \
|
||
coshf sinhf tanhf)
|
||
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
|
||
float_round,
|
||
ceilf floorf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
|
||
|
||
dnl Check to see if basic C math functions have long double versions.
|
||
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
|
||
long_double_trig,
|
||
acosl asinl atanl \
|
||
cosl sinl tanl \
|
||
coshl sinhl tanhl)
|
||
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
|
||
long_double_round,
|
||
ceill floorl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
|
||
GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
|
||
GLIBCXX_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.
|
||
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
|
||
_float_trig,
|
||
_acosf _asinf _atanf \
|
||
_cosf _sinf _tanf \
|
||
_coshf _sinhf _tanhf)
|
||
GLIBCXX_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.
|
||
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
|
||
_long_double_trig,
|
||
_acosl _asinl _atanl \
|
||
_cosl _sinl _tanl \
|
||
_coshl _sinhl _tanhl)
|
||
GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
|
||
_long_double_round,
|
||
_ceill _floorl)
|
||
|
||
LIBS="$ac_save_LIBS"
|
||
CXXFLAGS="$ac_save_CXXFLAGS"
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if there is native support for complex
|
||
dnl
|
||
dnl Don't compile bits in math/* if native support exits.
|
||
dnl
|
||
dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
|
||
dnl
|
||
dnl GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
|
||
AC_DEFUN(GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT, [
|
||
dnl Check for complex versions of math functions of platform. This will
|
||
dnl always pass if libm is available, and fail if it isn't. If it is
|
||
dnl available, we assume we'll need it later, so add it to LIBS.
|
||
AC_CHECK_LIB(m, main)
|
||
AC_REPLACE_MATHFUNCS(nan copysignf)
|
||
|
||
dnl For __signbit to signbit conversions.
|
||
AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"])
|
||
AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"])
|
||
|
||
dnl Compile the long double complex functions only if the function
|
||
dnl provides the non-complex long double functions that are needed.
|
||
dnl Currently this includes copysignl, which should be
|
||
dnl cached from the GLIBCXX_CHECK_MATH_SUPPORT macro, above.
|
||
if test x$ac_cv_func_copysignl = x"yes"; then
|
||
AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
|
||
fi
|
||
|
||
if test -n "$LIBMATHOBJS"; then
|
||
need_libmath=yes
|
||
fi
|
||
AC_SUBST(LIBMATHOBJS)
|
||
])
|
||
|
||
|
||
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 GLIBCXX_CHECK_HOST
|
||
AC_DEFUN(GLIBCXX_CHECK_HOST, [
|
||
. [$]{glibcxx_basedir}/configure.host
|
||
AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
|
||
AC_MSG_RESULT(OS config directory is $os_include_dir)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if this target can enable the wchar_t parts of libstdc++.
|
||
dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
|
||
dnl must have been previously checked.)
|
||
dnl
|
||
dnl Define _GLIBCXX_USE_WCHAR_T if all the bits are found
|
||
dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
|
||
dnl
|
||
dnl GLIBCXX_CHECK_WCHAR_T_SUPPORT
|
||
AC_DEFUN(GLIBCXX_CHECK_WCHAR_T_SUPPORT, [
|
||
dnl Wide characters disabled by default.
|
||
|
||
dnl Test wchar.h for mbstate_t, which is needed for char_traits and
|
||
dnl others even if wchar_t support is not on.
|
||
AC_MSG_CHECKING([for mbstate_t])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[mbstate_t teststate;],
|
||
have_mbstate_t=yes, have_mbstate_t=no)
|
||
AC_MSG_RESULT($have_mbstate_t)
|
||
if test x"$have_mbstate_t" = xyes; then
|
||
AC_DEFINE(HAVE_MBSTATE_T)
|
||
fi
|
||
|
||
dnl Sanity check for existence of ISO C99 headers for extended encoding.
|
||
AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
|
||
AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
|
||
|
||
dnl Only continue checking if the ISO C99 headers exist and support is on.
|
||
if test x"$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_wfuncs=yes
|
||
AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
|
||
ac_wfuncs=no)
|
||
|
||
dnl Checks for names injected into std:: by the c_std headers.
|
||
AC_CHECK_FUNCS(btowc wctob fgetwc fgetws fputwc fputws fwide \
|
||
fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
|
||
vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
|
||
mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
|
||
wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
|
||
wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
|
||
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.
|
||
if test x"$ac_isoC99_wchar_t" = xyes &&
|
||
test x"$ac_XPG2_wchar_t" = xyes; then
|
||
AC_DEFINE(_GLIBCXX_USE_WCHAR_T)
|
||
enable_wchar_t=yes
|
||
fi
|
||
fi
|
||
AC_MSG_CHECKING([for enabled wchar_t specializations])
|
||
AC_MSG_RESULT($enable_wchar_t)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if debugging libraries are to be built.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_DEBUG
|
||
dnl
|
||
dnl --enable-libstdcxx-debug
|
||
dnl builds a separate set of debugging libraries in addition to the
|
||
dnl normal (shared, static) libstdc++ binaries.
|
||
dnl
|
||
dnl --disable-libstdcxx-debug
|
||
dnl builds only one (non-debug) version of libstdc++.
|
||
dnl
|
||
dnl --enable-libstdcxx-debug-flags=FLAGS
|
||
dnl iff --enable-debug == yes, then use FLAGS to build the debug library.
|
||
dnl
|
||
dnl + Usage: GLIBCXX_ENABLE_DEBUG[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
||
dnl defaults to `no'.
|
||
AC_DEFUN(GLIBCXX_ENABLE_DEBUG, [dnl
|
||
define([GLIBCXX_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
AC_ARG_ENABLE(libstdcxx_debug,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-libstdcxx-debug build extra debug library [default=>>GLIBCXX_ENABLE_DEBUG_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "${enableval}" in
|
||
yes) enable_libstdcxx_debug=yes ;;
|
||
no) enable_libstdcxx_debug=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
|
||
esac],
|
||
enable_libstdcxx_debug=GLIBCXX_ENABLE_DEBUG_DEFAULT)dnl
|
||
AC_MSG_CHECKING([for additional debug build])
|
||
AC_MSG_RESULT($enable_libstdcxx_debug)
|
||
AM_CONDITIONAL(GLIBCXX_BUILD_DEBUG, test "$enable_libstdcxx_debug" = yes)
|
||
])
|
||
|
||
|
||
dnl Check for explicit debug flags.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_DEBUG_FLAGS
|
||
dnl
|
||
dnl --enable-libstdcxx-debug-flags='-O1'
|
||
dnl is a general method for passing flags to be used when
|
||
dnl building debug libraries with --enable-debug.
|
||
dnl
|
||
dnl --disable-libstdcxx-debug-flags does nothing.
|
||
dnl + Usage: GLIBCXX_ENABLE_DEBUG_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(GLIBCXX_ENABLE_DEBUG_FLAGS, [dnl
|
||
define([GLIBCXX_ENABLE_DEBUG_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
|
||
AC_ARG_ENABLE(libstdcxx_debug_flags,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-libstdcxx-debug-flags=FLAGS pass compiler FLAGS when building
|
||
debug library;
|
||
[default=>>GLIBCXX_ENABLE_DEBUG_FLAGS_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "${enableval}" in
|
||
none) ;;
|
||
-*) enable_libstdcxx_debug_flags="${enableval}" ;;
|
||
*) AC_MSG_ERROR([Unknown argument to extra debugging flags]) ;;
|
||
esac],
|
||
enable_libstdcxx_debug_flags=GLIBCXX_ENABLE_DEBUG_FLAGS_DEFAULT)dnl
|
||
|
||
dnl Option parsed, now set things appropriately
|
||
case x"$enable_libstdcxx_debug" in
|
||
xyes)
|
||
case "$enable_libstdcxx_debug_flags" in
|
||
none)
|
||
DEBUG_FLAGS="-g3 -O0";;
|
||
-*) #valid input
|
||
DEBUG_FLAGS="${enableval}"
|
||
esac
|
||
;;
|
||
xno)
|
||
DEBUG_FLAGS=""
|
||
;;
|
||
esac
|
||
AC_SUBST(DEBUG_FLAGS)
|
||
|
||
AC_MSG_CHECKING([for debug build flags])
|
||
AC_MSG_RESULT($DEBUG_FLAGS)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for "unusual" flags to pass to the compiler while building.
|
||
dnl
|
||
dnl GLIBCXX_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: GLIBCXX_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(GLIBCXX_ENABLE_CXX_FLAGS, [dnl
|
||
define([GLIBCXX_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
|
||
AC_MSG_CHECKING([for extra compiler flags for building])
|
||
AC_ARG_ENABLE(cxx_flags,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
|
||
[default=>>GLIBCXX_ENABLE_CXX_FLAGS_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "x$enable_cxx_flags" in
|
||
xyes)
|
||
AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
|
||
xno | xnone | x)
|
||
enable_cxx_flags='' ;;
|
||
*)
|
||
enable_cxx_flags="$enableval" ;;
|
||
esac],
|
||
enable_cxx_flags=GLIBCXX_ENABLE_CXX_FLAGS_DEFAULT)
|
||
|
||
dnl Run through flags (either default or command-line) and set anything
|
||
dnl extra (e.g., #defines) that must accompany particular g++ options.
|
||
if test -n "$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="$enable_cxx_flags"
|
||
AC_MSG_RESULT($EXTRA_CXX_FLAGS)
|
||
AC_SUBST(EXTRA_CXX_FLAGS)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for which locale library to use: gnu or generic.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_CLOCALE
|
||
dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
|
||
dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
|
||
dnl
|
||
dnl default is generic
|
||
dnl
|
||
AC_DEFUN(GLIBCXX_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$enable_clocale = xno; then
|
||
enable_clocale=no
|
||
fi,
|
||
enable_clocale=no)
|
||
|
||
enable_clocale_flag=$enable_clocale
|
||
|
||
dnl Probe for locale support if no specific model is specified.
|
||
dnl Default to "generic"
|
||
if test x$enable_clocale_flag = xno; then
|
||
case x${target_os} in
|
||
xlinux* | xgnu*)
|
||
AC_EGREP_CPP([_GLIBCXX_ok], [
|
||
#include <features.h>
|
||
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
|
||
_GLIBCXX_ok
|
||
#endif
|
||
], enable_clocale_flag=gnu, enable_clocale_flag=generic)
|
||
|
||
# Test for bugs early in glibc-2.2.x series
|
||
if test x$enable_clocale_flag = xgnu; then
|
||
AC_TRY_RUN([
|
||
#define _GNU_SOURCE 1
|
||
#include <locale.h>
|
||
#include <string.h>
|
||
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
|
||
extern __typeof(newlocale) __newlocale;
|
||
extern __typeof(duplocale) __duplocale;
|
||
extern __typeof(strcoll_l) __strcoll_l;
|
||
#endif
|
||
int main()
|
||
{
|
||
const char __one[] = "<22>uglein Augmen";
|
||
const char __two[] = "<22>uglein";
|
||
int i;
|
||
int j;
|
||
__locale_t loc;
|
||
__locale_t loc_dup;
|
||
loc = __newlocale(1 << LC_ALL, "de_DE", 0);
|
||
loc_dup = __duplocale(loc);
|
||
i = __strcoll_l(__one, __two, loc);
|
||
j = __strcoll_l(__one, __two, loc_dup);
|
||
return 0;
|
||
}
|
||
],
|
||
[enable_clocale_flag=gnu],[enable_clocale_flag=generic],
|
||
[enable_clocale_flag=generic])
|
||
fi
|
||
|
||
# ... at some point put __strxfrm_l tests in as well.
|
||
;;
|
||
*)
|
||
enable_clocale_flag=generic
|
||
;;
|
||
esac
|
||
fi
|
||
|
||
dnl Deal with gettext issues.
|
||
AC_ARG_ENABLE(nls,
|
||
[ --enable-nls use Native Language Support (default)],
|
||
, enable_nls=yes)
|
||
USE_NLS=no
|
||
|
||
dnl Set configure bits for specified locale package
|
||
case x${enable_clocale_flag} in
|
||
xgeneric)
|
||
AC_MSG_RESULT(generic)
|
||
|
||
CLOCALE_H=config/locale/generic/c_locale.h
|
||
CLOCALE_CC=config/locale/generic/c_locale.cc
|
||
CCODECVT_H=config/locale/generic/codecvt_specializations.h
|
||
CCODECVT_CC=config/locale/generic/codecvt_members.cc
|
||
CCOLLATE_CC=config/locale/generic/collate_members.cc
|
||
CCTYPE_CC=config/locale/generic/ctype_members.cc
|
||
CMESSAGES_H=config/locale/generic/messages_members.h
|
||
CMESSAGES_CC=config/locale/generic/messages_members.cc
|
||
CMONEY_CC=config/locale/generic/monetary_members.cc
|
||
CNUMERIC_CC=config/locale/generic/numeric_members.cc
|
||
CTIME_H=config/locale/generic/time_members.h
|
||
CTIME_CC=config/locale/generic/time_members.cc
|
||
CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
|
||
;;
|
||
xgnu)
|
||
AC_MSG_RESULT(gnu)
|
||
|
||
# Declare intention to use gettext, and add support for specific
|
||
# languages.
|
||
# For some reason, ALL_LINGUAS has to be before AM-GNU-GETTEXT
|
||
ALL_LINGUAS="de fr"
|
||
|
||
# Don't call AM-GNU-GETTEXT here. Instead, assume glibc.
|
||
AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
|
||
if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
|
||
USE_NLS=yes
|
||
fi
|
||
# Export the build objects.
|
||
for ling in $ALL_LINGUAS; do \
|
||
glibcxx_MOFILES="$glibcxx_MOFILES $ling.mo"; \
|
||
glibcxx_POFILES="$glibcxx_POFILES $ling.po"; \
|
||
done
|
||
AC_SUBST(glibcxx_MOFILES)
|
||
AC_SUBST(glibcxx_POFILES)
|
||
|
||
CLOCALE_H=config/locale/gnu/c_locale.h
|
||
CLOCALE_CC=config/locale/gnu/c_locale.cc
|
||
CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
|
||
CCODECVT_CC=config/locale/gnu/codecvt_members.cc
|
||
CCOLLATE_CC=config/locale/gnu/collate_members.cc
|
||
CCTYPE_CC=config/locale/gnu/ctype_members.cc
|
||
CMESSAGES_H=config/locale/gnu/messages_members.h
|
||
CMESSAGES_CC=config/locale/gnu/messages_members.cc
|
||
CMONEY_CC=config/locale/gnu/monetary_members.cc
|
||
CNUMERIC_CC=config/locale/gnu/numeric_members.cc
|
||
CTIME_H=config/locale/gnu/time_members.h
|
||
CTIME_CC=config/locale/gnu/time_members.cc
|
||
CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h
|
||
;;
|
||
xieee_1003.1-2001)
|
||
AC_MSG_RESULT(IEEE 1003.1)
|
||
|
||
CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
|
||
CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
|
||
CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
|
||
CCODECVT_CC=config/locale/generic/codecvt_members.cc
|
||
CCOLLATE_CC=config/locale/generic/collate_members.cc
|
||
CCTYPE_CC=config/locale/generic/ctype_members.cc
|
||
CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
|
||
CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
|
||
CMONEY_CC=config/locale/generic/monetary_members.cc
|
||
CNUMERIC_CC=config/locale/generic/numeric_members.cc
|
||
CTIME_H=config/locale/generic/time_members.h
|
||
CTIME_CC=config/locale/generic/time_members.cc
|
||
CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
|
||
;;
|
||
*)
|
||
echo "$enable_clocale is an unknown locale package" 1>&2
|
||
exit 1
|
||
;;
|
||
esac
|
||
|
||
# This is where the testsuite looks for locale catalogs, using the
|
||
# -DLOCALEDIR define during testsuite compilation.
|
||
glibcxx_localedir=${glibcxx_builddir}/po/share/locale
|
||
AC_SUBST(glibcxx_localedir)
|
||
|
||
# A standalone libintl (e.g., GNU libintl) may be in use.
|
||
if test $USE_NLS = yes; then
|
||
AC_CHECK_HEADERS([libintl.h], [], USE_NLS=no)
|
||
AC_SEARCH_LIBS(gettext, intl, [], USE_NLS=no)
|
||
fi
|
||
if test $USE_NLS = yes; then
|
||
AC_DEFINE(_GLIBCXX_USE_NLS)
|
||
fi
|
||
|
||
AC_SUBST(USE_NLS)
|
||
AC_SUBST(CLOCALE_H)
|
||
AC_SUBST(CCODECVT_H)
|
||
AC_SUBST(CMESSAGES_H)
|
||
AC_SUBST(CCODECVT_CC)
|
||
AC_SUBST(CCOLLATE_CC)
|
||
AC_SUBST(CCTYPE_CC)
|
||
AC_SUBST(CMESSAGES_CC)
|
||
AC_SUBST(CMONEY_CC)
|
||
AC_SUBST(CNUMERIC_CC)
|
||
AC_SUBST(CTIME_H)
|
||
AC_SUBST(CTIME_CC)
|
||
AC_SUBST(CLOCALE_CC)
|
||
AC_SUBST(CLOCALE_INTERNAL_H)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for which I/O library to use: stdio, or something specific.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_CSTDIO
|
||
dnl
|
||
dnl default is stdio
|
||
dnl
|
||
AC_DEFUN(GLIBCXX_ENABLE_CSTDIO, [
|
||
AC_MSG_CHECKING([for cstdio to use])
|
||
AC_ARG_ENABLE(cstdio,
|
||
[ --enable-cstdio enable stdio for target io package.
|
||
--enable-cstdio=LIB use LIB target-specific io package. [default=stdio]
|
||
],
|
||
if test x$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
|
||
xstdio | x | xno | xnone | xyes)
|
||
# default
|
||
CSTDIO_H=config/io/c_io_stdio.h
|
||
BASIC_FILE_H=config/io/basic_file_stdio.h
|
||
BASIC_FILE_CC=config/io/basic_file_stdio.cc
|
||
AC_MSG_RESULT(stdio)
|
||
;;
|
||
*)
|
||
echo "$enable_cstdio is an unknown io package" 1>&2
|
||
exit 1
|
||
;;
|
||
esac
|
||
|
||
dnl Set directory for fpos.h
|
||
FPOS_H=$fpos_include_dir
|
||
|
||
AC_SUBST(CSTDIO_H)
|
||
AC_SUBST(FPOS_H)
|
||
AC_SUBST(BASIC_FILE_H)
|
||
AC_SUBST(BASIC_FILE_CC)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if building and using a C++ precompiled header can be done.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_PCH
|
||
dnl
|
||
dnl --enable-libstdcxx-pch=yes
|
||
dnl default, this shows intent to use stdc++.h.gch If it looks like it
|
||
dnl may work, after some light-hearted attempts to puzzle out compiler
|
||
dnl support, flip bits on in include/Makefile.am
|
||
dnl
|
||
dnl --disable-libstdcxx-pch
|
||
dnl turns off attempts to use or build stdc++.h.gch.
|
||
dnl
|
||
AC_DEFUN(GLIBCXX_ENABLE_PCH, [dnl
|
||
define([GLIBCXX_ENABLE_PCH_DEFAULT], ifelse($1,,, $1))dnl
|
||
AC_ARG_ENABLE(libstdcxx_pch,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-libstdcxx-pch build pre-compiled libstdc++ includes [default=>>GLIBCXX_ENABLE_PCH_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "${enableval}" in
|
||
yes) enable_libstdcxx_pch=yes ;;
|
||
no) enable_libstdcxx_pch=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable PCH]) ;;
|
||
esac],
|
||
enable_libstdcxx_pch=GLIBCXX_ENABLE_PCH_DEFAULT)dnl
|
||
|
||
if test x$enable_libstdcxx_pch = xyes; then
|
||
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
||
ac_save_CXXFLAGS="$CXXFLAGS"
|
||
CXXFLAGS='-Werror -Winvalid-pch -Wno-deprecated -x c++-header'
|
||
|
||
AC_MSG_CHECKING([for compiler that seems to compile .gch files])
|
||
if test x${pch_comp+set} != xset; then
|
||
AC_CACHE_VAL(pch_comp, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>], ,
|
||
[pch_comp=yes], [pch_comp=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT([$pch_comp])
|
||
|
||
CXXFLAGS="$ac_save_CXXFLAGS"
|
||
fi
|
||
|
||
if test x"$enable_libstdcxx_pch" = xyes && test x"$pch_comp" = xno; then
|
||
enable_pch=no
|
||
fi
|
||
|
||
AC_MSG_CHECKING([for enabled PCH])
|
||
AC_MSG_RESULT([$enable_libstdcxx_pch])
|
||
|
||
AM_CONDITIONAL(GLIBCXX_BUILD_PCH, test "$enable_libstdcxx_pch" = yes)
|
||
if test "$enable_libstdcxx_pch" = yes; then
|
||
glibcxx_PCHFLAGS="-include bits/stdc++.h"
|
||
else
|
||
glibcxx_PCHFLAGS=""
|
||
fi
|
||
AC_SUBST(glibcxx_PCHFLAGS)
|
||
])
|
||
|
||
dnl
|
||
dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
|
||
dnl We must stage the required headers so that they will be installed
|
||
dnl with the library (unlike libgcc, the STL implementation is provided
|
||
dnl solely within headers). Since we must not inject random user-space
|
||
dnl macro names into user-provided C++ code, we first stage into <file>-in
|
||
dnl and process to <file> with an output command. The reason for a two-
|
||
dnl stage process here is to correctly handle $srcdir!=$objdir without
|
||
dnl having to write complex code (the sed commands to clean the macro
|
||
dnl namespace are complex and fragile enough as it is). We must also
|
||
dnl add a relative path so that -I- is supported properly.
|
||
dnl
|
||
AC_DEFUN(GLIBCXX_ENABLE_THREADS, [
|
||
AC_MSG_CHECKING([for thread model used by GCC])
|
||
target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
|
||
AC_MSG_RESULT([$target_thread_file])
|
||
|
||
if test $target_thread_file != single; then
|
||
AC_DEFINE(HAVE_GTHR_DEFAULT)
|
||
AC_DEFINE(_GLIBCXX_SUPPORTS_WEAK, __GXX_WEAK__)
|
||
fi
|
||
|
||
glibcxx_thread_h=gthr-$target_thread_file.h
|
||
AC_SUBST(glibcxx_thread_h)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for exception handling support. If an explicit enable/disable
|
||
dnl sjlj exceptions is given, we don't have to detect. Otherwise the
|
||
dnl target may or may not support call frame exceptions.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_SJLJ_EXCEPTIONS
|
||
dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
|
||
dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
|
||
dnl
|
||
dnl Define _GLIBCXX_SJLJ_EXCEPTIONS if the compiler is configured for it.
|
||
dnl
|
||
AC_DEFUN(GLIBCXX_ENABLE_SJLJ_EXCEPTIONS, [
|
||
AC_MSG_CHECKING([for exception model to use])
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_ARG_ENABLE(sjlj-exceptions,
|
||
[ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
|
||
[:],
|
||
[dnl Botheration. Now we've got to detect the exception model.
|
||
dnl Link tests against libgcc.a are problematic since -- at least
|
||
dnl as of this writing -- we've not been given proper -L bits for
|
||
dnl single-tree newlib and libgloss.
|
||
dnl
|
||
dnl This is what AC_TRY_COMPILE would do if it didn't delete the
|
||
dnl conftest files before we got a change to grep them first.
|
||
cat > conftest.$ac_ext << EOF
|
||
[#]line __oline__ "configure"
|
||
struct S { ~S(); };
|
||
void bar();
|
||
void foo()
|
||
{
|
||
S s;
|
||
bar();
|
||
}
|
||
EOF
|
||
old_CXXFLAGS="$CXXFLAGS"
|
||
CXXFLAGS=-S
|
||
if AC_TRY_EVAL(ac_compile); then
|
||
if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
|
||
enable_sjlj_exceptions=yes
|
||
elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
|
||
enable_sjlj_exceptions=no
|
||
fi
|
||
fi
|
||
CXXFLAGS="$old_CXXFLAGS"
|
||
rm -f conftest*])
|
||
if test x$enable_sjlj_exceptions = xyes; then
|
||
AC_DEFINE(_GLIBCXX_SJLJ_EXCEPTIONS, 1,
|
||
[Define if the compiler is configured for setjmp/longjmp exceptions.])
|
||
ac_exception_model_name=sjlj
|
||
elif test x$enable_sjlj_exceptions = xno; then
|
||
ac_exception_model_name="call frame"
|
||
else
|
||
AC_MSG_ERROR([unable to detect exception model])
|
||
fi
|
||
AC_LANG_RESTORE
|
||
AC_MSG_RESULT($ac_exception_model_name)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for libunwind exception handling support. If enabled then
|
||
dnl we assume that the _Unwind_* functions that make up the Unwind ABI
|
||
dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
|
||
dnl libunwind instead of libgcc and that libstdc++ has a dependency
|
||
dnl on libunwind as well as libgcc.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_LIBUNWIND_EXCEPTIONS
|
||
dnl --enable-libunwind-exceptions forces the use of libunwind.
|
||
dnl --disable-libunwind-exceptions assumes there is no libunwind.
|
||
dnl
|
||
dnl Define _GLIBCXX_LIBUNWIND_EXCEPTIONS if requested.
|
||
dnl
|
||
AC_DEFUN(GLIBCXX_ENABLE_LIBUNWIND_EXCEPTIONS, [
|
||
AC_MSG_CHECKING([for use of libunwind])
|
||
AC_ARG_ENABLE(libunwind-exceptions,
|
||
[ --enable-libunwind-exceptions force use of libunwind for exceptions],
|
||
use_libunwind_exceptions=$enableval,
|
||
use_libunwind_exceptions=no)
|
||
AC_MSG_RESULT($use_libunwind_exceptions)
|
||
dnl Option parsed, now set things appropriately
|
||
if test x"$use_libunwind_exceptions" = xyes; then
|
||
LIBUNWIND_FLAG="-lunwind"
|
||
else
|
||
LIBUNWIND_FLAG=""
|
||
fi
|
||
AC_SUBST(LIBUNWIND_FLAG)
|
||
])
|
||
|
||
dnl
|
||
dnl Check for ISO/IEC 9899:1999 "C99" support.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_C99
|
||
dnl --enable-c99 defines _GLIBCXX_USE_C99
|
||
dnl --disable-c99 leaves _GLIBCXX_USE_C99 undefined
|
||
dnl + Usage: GLIBCXX_ENABLE_C99[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If omitted, it
|
||
dnl defaults to `no'.
|
||
dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_C99
|
||
AC_DEFUN(GLIBCXX_ENABLE_C99, [dnl
|
||
define([GLIBCXX_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
|
||
AC_ARG_ENABLE(c99,
|
||
changequote(<<, >>)dnl
|
||
<<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCXX_ENABLE_C99_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$enableval" in
|
||
yes) enable_c99=yes ;;
|
||
no) enable_c99=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
|
||
esac],
|
||
enable_c99=GLIBCXX_ENABLE_C99_DEFAULT)dnl
|
||
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
|
||
# Check for the existence of <math.h> functions used if C99 is enabled.
|
||
ac_c99_math=yes;
|
||
AC_MSG_CHECKING([for ISO C99 support in <math.h>])
|
||
AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[islessgreater(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[isunordered(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_MSG_RESULT($ac_c99_math)
|
||
|
||
# Check for the existence in <stdio.h> of vscanf, et. al.
|
||
ac_c99_stdio=yes;
|
||
AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
|
||
AC_TRY_COMPILE([#include <stdio.h>],
|
||
[snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
|
||
AC_TRY_COMPILE([#include <stdio.h>
|
||
#include <stdarg.h>
|
||
void foo(char* fmt, ...)
|
||
{va_list args; va_start(args, fmt);
|
||
vfscanf(stderr, "%i", args);}],
|
||
[],, [ac_c99_stdio=no])
|
||
AC_TRY_COMPILE([#include <stdio.h>
|
||
#include <stdarg.h>
|
||
void foo(char* fmt, ...)
|
||
{va_list args; va_start(args, fmt);
|
||
vscanf("%i", args);}],
|
||
[],, [ac_c99_stdio=no])
|
||
AC_TRY_COMPILE([#include <stdio.h>
|
||
#include <stdarg.h>
|
||
void foo(char* fmt, ...)
|
||
{va_list args; va_start(args, fmt);
|
||
vsnprintf(fmt, 0, "%i", args);}],
|
||
[],, [ac_c99_stdio=no])
|
||
AC_TRY_COMPILE([#include <stdio.h>
|
||
#include <stdarg.h>
|
||
void foo(char* fmt, ...)
|
||
{va_list args; va_start(args, fmt);
|
||
vsscanf(fmt, "%i", args);}],
|
||
[],, [ac_c99_stdio=no])
|
||
AC_MSG_RESULT($ac_c99_stdio)
|
||
|
||
# Check for the existence in <stdlib.h> of lldiv_t, et. al.
|
||
ac_c99_stdlib=yes;
|
||
AC_MSG_CHECKING([for lldiv_t declaration])
|
||
AC_CACHE_VAL(ac_c99_lldiv_t, [
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[ lldiv_t mydivt;],
|
||
[ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
|
||
])
|
||
AC_MSG_RESULT($ac_c99_lldiv_t)
|
||
|
||
AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
|
||
if test x"$ac_c99_lldiv_t" = x"no"; then
|
||
ac_c99_stdlib=no;
|
||
fi;
|
||
AC_MSG_RESULT($ac_c99_stdlib)
|
||
|
||
# Check for the existence of <wchar.h> functions used if C99 is enabled.
|
||
# XXX the wchar.h checks should be rolled into the general C99 bits.
|
||
ac_c99_wchar=yes;
|
||
AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
|
||
AC_MSG_RESULT($ac_c99_wchar)
|
||
|
||
AC_MSG_CHECKING([for enabled ISO C99 support])
|
||
if test x"$ac_c99_math" = x"no" ||
|
||
test x"$ac_c99_stdio" = x"no" ||
|
||
test x"$ac_c99_stdlib" = x"no" ||
|
||
test x"$ac_c99_wchar" = x"no"; then
|
||
enable_c99=no;
|
||
fi;
|
||
AC_MSG_RESULT($enable_c99)
|
||
|
||
# Option parsed, now set things appropriately
|
||
if test x"$enable_c99" = x"yes"; then
|
||
AC_DEFINE(_GLIBCXX_USE_C99)
|
||
fi
|
||
|
||
AC_LANG_RESTORE
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for template specializations for the 'long long' type extension.
|
||
dnl The result determines only whether 'long long' I/O is enabled; things
|
||
dnl like numeric_limits<> specializations are always available.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_LONG_LONG
|
||
dnl --enable-long-long defines _GLIBCXX_USE_LONG_LONG
|
||
dnl --disable-long-long leaves _GLIBCXX_USE_LONG_LONG undefined
|
||
dnl + Usage: GLIBCXX_ENABLE_LONG_LONG[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If omitted, it
|
||
dnl defaults to `no'.
|
||
dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_LONG_LONG
|
||
AC_DEFUN(GLIBCXX_ENABLE_LONG_LONG, [dnl
|
||
define([GLIBCXX_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
|
||
AC_ARG_ENABLE(long-long,
|
||
changequote(<<, >>)dnl
|
||
<<--enable-long-long turns on 'long long' [default=>>GLIBCXX_ENABLE_LONG_LONG_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$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=GLIBCXX_ENABLE_LONG_LONG_DEFAULT)dnl
|
||
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
|
||
AC_MSG_CHECKING([for enabled long long I/O support])
|
||
# iostreams require strtoll, strtoull to compile
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
|
||
|
||
# Option parsed, now set things appropriately
|
||
if test x"$enable_long_long" = xyes; then
|
||
AC_DEFINE(_GLIBCXX_USE_LONG_LONG)
|
||
fi
|
||
AC_MSG_RESULT($enable_long_long)
|
||
|
||
AC_LANG_RESTORE
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for what type of C headers to use.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_CHEADERS
|
||
dnl --enable-cheaders= [does stuff].
|
||
dnl --disable-cheaders [does not do anything, really].
|
||
dnl + Usage: GLIBCXX_ENABLE_CHEADERS[(DEFAULT)]
|
||
dnl Where DEFAULT is either `c' or `c_std'.
|
||
dnl If ommitted, it defaults to `c_std'.
|
||
AC_DEFUN(GLIBCXX_ENABLE_CHEADERS, [dnl
|
||
define([GLIBCXX_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
|
||
AC_MSG_CHECKING([for c header strategy to use])
|
||
AC_ARG_ENABLE(cheaders,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-cheaders=MODEL construct "C" header files for g++ [default=>>GLIBCXX_ENABLE_CHEADERS_DEFAULT],
|
||
changequote([, ])
|
||
[case "$enableval" in
|
||
c)
|
||
enable_cheaders=c
|
||
;;
|
||
c_std)
|
||
enable_cheaders=c_std
|
||
;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
|
||
;;
|
||
esac],
|
||
enable_cheaders=GLIBCXX_ENABLE_CHEADERS_DEFAULT)
|
||
AC_MSG_RESULT($enable_cheaders)
|
||
|
||
dnl Option parsed, now set things appropriately
|
||
case "$enable_cheaders" in
|
||
c_std)
|
||
C_INCLUDE_DIR='${glibcxx_srcdir}/include/c_std'
|
||
;;
|
||
c)
|
||
C_INCLUDE_DIR='${glibcxx_srcdir}/include/c'
|
||
;;
|
||
esac
|
||
|
||
AC_SUBST(C_INCLUDE_DIR)
|
||
AM_CONDITIONAL(GLIBCXX_C_HEADERS_C, test "$enable_cheaders" = c)
|
||
AM_CONDITIONAL(GLIBCXX_C_HEADERS_C_STD, test "$enable_cheaders" = c_std)
|
||
AM_CONDITIONAL(GLIBCXX_C_HEADERS_COMPATIBILITY, test "$c_compatibility" = yes)
|
||
])
|
||
|
||
|
||
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 GLIBCXX_ENABLE_C_MBCHAR
|
||
dnl --enable-c-mbchar requests all the wchar_t stuff.
|
||
dnl --disable-c-mbchar doesn't.
|
||
dnl + Usage: GLIBCXX_ENABLE_C_MBCHAR[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
||
dnl defaults to `no'.
|
||
AC_DEFUN(GLIBCXX_ENABLE_C_MBCHAR, [dnl
|
||
define([GLIBCXX_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
AC_ARG_ENABLE(c-mbchar,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCXX_ENABLE_C_MBCHAR_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$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=GLIBCXX_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 TOPLEVEL_INCLUDES
|
||
dnl LIBMATH_INCLUDES
|
||
dnl LIBSUPCXX_INCLUDES
|
||
dnl
|
||
dnl GLIBCXX_EXPORT_INCLUDES
|
||
AC_DEFUN(GLIBCXX_EXPORT_INCLUDES, [
|
||
# Root level of the build directory include sources.
|
||
GLIBCXX_INCLUDES="-I${glibcxx_builddir}/include/${target_alias} -I${glibcxx_builddir}/include"
|
||
|
||
# Passed down for canadian crosses.
|
||
if test x"$CANADIAN" = xyes; then
|
||
TOPLEVEL_INCLUDES='-I$(includedir)'
|
||
fi
|
||
|
||
LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
|
||
|
||
LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
|
||
|
||
# Now, export this to all the little Makefiles....
|
||
AC_SUBST(GLIBCXX_INCLUDES)
|
||
AC_SUBST(TOPLEVEL_INCLUDES)
|
||
AC_SUBST(LIBMATH_INCLUDES)
|
||
AC_SUBST(LIBSUPCXX_INCLUDES)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
|
||
dnl
|
||
AC_DEFUN(GLIBCXX_EXPORT_FLAGS, [
|
||
# Optimization flags that are probably a good idea for thrill-seekers. Just
|
||
# uncomment the lines below and make, everything else is ready to go...
|
||
# OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
|
||
OPTIMIZE_CXXFLAGS=
|
||
AC_SUBST(OPTIMIZE_CXXFLAGS)
|
||
|
||
WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings'
|
||
AC_SUBST(WARN_FLAGS)
|
||
])
|
||
|
||
dnl
|
||
dnl GLIBCXX_EXPORT_INSTALL_INFO
|
||
dnl calculates gxx_install_dir
|
||
dnl exports glibcxx_toolexecdir
|
||
dnl exports glibcxx_toolexeclibdir
|
||
dnl exports glibcxx_prefixdir
|
||
dnl
|
||
dnl Assumes cross_compiling bits already done, and with_cross_host in
|
||
dnl particular
|
||
dnl
|
||
dnl GLIBCXX_EXPORT_INSTALL_INFO
|
||
AC_DEFUN(GLIBCXX_EXPORT_INSTALL_INFO, [
|
||
# Assumes glibcxx_builddir, glibcxx_srcdir are alreay set up and
|
||
# exported correctly in GLIBCXX_CONFIGURE.
|
||
glibcxx_toolexecdir=no
|
||
glibcxx_toolexeclibdir=no
|
||
glibcxx_prefixdir=${prefix}
|
||
|
||
# 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($gxx_include_dir)
|
||
|
||
# Process the option "--enable-version-specific-runtime-libs"
|
||
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
|
||
AC_ARG_ENABLE(version-specific-runtime-libs,
|
||
[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
|
||
[case "$enableval" in
|
||
yes) version_specific_libs=yes ;;
|
||
no) version_specific_libs=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
|
||
esac],
|
||
version_specific_libs=no)dnl
|
||
# Option set, now we can test it.
|
||
AC_MSG_RESULT($version_specific_libs)
|
||
|
||
# Default case for install directory for include files.
|
||
if test $version_specific_libs = no && test $gxx_include_dir = no; then
|
||
gxx_include_dir='$(prefix)'/include/c++/${gcc_version}
|
||
fi
|
||
|
||
# Version-specific runtime libs processing.
|
||
if test $version_specific_libs = yes; then
|
||
# Need the gcc compiler version to know where to install libraries
|
||
# and header files if --enable-version-specific-runtime-libs option
|
||
# is selected.
|
||
if test x"$gxx_include_dir" = x"no"; then
|
||
gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/c++
|
||
fi
|
||
glibcxx_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
|
||
glibcxx_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
|
||
fi
|
||
|
||
# Calculate glibcxx_toolexecdir, glibcxx_toolexeclibdir
|
||
# Install a library built with a cross compiler in tooldir, not libdir.
|
||
if test x"$glibcxx_toolexecdir" = x"no"; then
|
||
if test -n "$with_cross_host" &&
|
||
test x"$with_cross_host" != x"no"; then
|
||
glibcxx_toolexecdir='$(exec_prefix)/$(target_alias)'
|
||
glibcxx_toolexeclibdir='$(toolexecdir)/lib'
|
||
else
|
||
glibcxx_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
|
||
glibcxx_toolexeclibdir='$(libdir)'
|
||
fi
|
||
multi_os_directory=`$CC -print-multi-os-directory`
|
||
case $multi_os_directory in
|
||
.) ;; # Avoid trailing /.
|
||
*) glibcxx_toolexeclibdir=$glibcxx_toolexeclibdir/$multi_os_directory ;;
|
||
esac
|
||
fi
|
||
|
||
AC_MSG_CHECKING([for install location])
|
||
AC_MSG_RESULT($gxx_include_dir)
|
||
|
||
AC_SUBST(glibcxx_prefixdir)
|
||
AC_SUBST(gxx_include_dir)
|
||
AC_SUBST(glibcxx_toolexecdir)
|
||
AC_SUBST(glibcxx_toolexeclibdir)
|
||
])
|
||
|
||
|
||
# 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"])])
|
||
|
||
|
||
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 #### GLIBCXX_ 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 #### ${MAKE:-make}).
|
||
dnl #### -msokolov
|
||
AC_DEFUN(
|
||
GLIBCXX_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
|
||
_cv_gnu_make_command='' ;
|
||
dnl Search all the common names for GNU make
|
||
for a in "${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)
|
||
])
|
||
|
||
|
||
dnl Check for headers for, and arguments to, the setrlimit() function.
|
||
dnl Used only in testsuite_hooks.h.
|
||
AC_DEFUN(GLIBCXX_CHECK_SETRLIMIT_ancilliary, [
|
||
AC_TRY_COMPILE([#include <unistd.h>
|
||
#include <sys/time.h>
|
||
#include <sys/resource.h>
|
||
], [ int f = RLIMIT_$1 ; ],
|
||
[glibcxx_mresult=1], [glibcxx_mresult=0])
|
||
AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcxx_mresult,
|
||
[Only used in build directory testsuite_hooks.h.])
|
||
])
|
||
AC_DEFUN(GLIBCXX_CHECK_SETRLIMIT, [
|
||
setrlimit_have_headers=yes
|
||
AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h,
|
||
[],
|
||
setrlimit_have_headers=no)
|
||
# If don't have the headers, then we can't run the tests now, and we
|
||
# won't be seeing any of these during testsuite compilation.
|
||
if test $setrlimit_have_headers = yes; then
|
||
# Can't do these in a loop, else the resulting syntax is wrong.
|
||
GLIBCXX_CHECK_SETRLIMIT_ancilliary(DATA)
|
||
GLIBCXX_CHECK_SETRLIMIT_ancilliary(RSS)
|
||
GLIBCXX_CHECK_SETRLIMIT_ancilliary(VMEM)
|
||
GLIBCXX_CHECK_SETRLIMIT_ancilliary(AS)
|
||
|
||
# Check for rlimit, setrlimit.
|
||
AC_CACHE_VAL(ac_setrlimit, [
|
||
AC_TRY_COMPILE([#include <unistd.h>
|
||
#include <sys/time.h>
|
||
#include <sys/resource.h>
|
||
],
|
||
[ struct rlimit r; setrlimit(0, &r);],
|
||
[ac_setrlimit=yes], [ac_setrlimit=no])
|
||
])
|
||
fi
|
||
|
||
AC_MSG_CHECKING([for testsuite memory limit support])
|
||
if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
|
||
ac_mem_limits=yes
|
||
AC_DEFINE(_GLIBCXX_MEM_LIMITS)
|
||
else
|
||
ac_mem_limits=no
|
||
fi
|
||
AC_MSG_RESULT($ac_mem_limits)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Does any necessary configuration of the testsuite directory. Generates
|
||
dnl the testsuite_hooks.h header.
|
||
dnl
|
||
dnl GLIBCXX_CONFIGURE_TESTSUITE [no args]
|
||
AC_DEFUN(GLIBCXX_CONFIGURE_TESTSUITE, [
|
||
|
||
if test x"$GLIBCXX_IS_CROSS_COMPILING" = xfalse; then
|
||
# Do checks for memory limit functions.
|
||
GLIBCXX_CHECK_SETRLIMIT
|
||
|
||
# Look for setenv, so that extended locale tests can be performed.
|
||
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
|
||
fi
|
||
|
||
# Export file names for ABI checking.
|
||
baseline_dir="${glibcxx_srcdir}/config/abi/${abi_baseline_pair}\$(MULTISUBDIR)"
|
||
AC_SUBST(baseline_dir)
|
||
|
||
# Determine if checking the ABI is desirable.
|
||
if test x$enable_symvers = xno; then
|
||
enable_abi_check=no
|
||
else
|
||
case "$host" in
|
||
*-*-cygwin*)
|
||
enable_abi_check=no ;;
|
||
*)
|
||
enable_abi_check=yes ;;
|
||
esac
|
||
fi
|
||
|
||
AM_CONDITIONAL(GLIBCXX_TEST_WCHAR_T, test "$enable_wchar_t" = yes)
|
||
AM_CONDITIONAL(GLIBCXX_TEST_ABI, test "$enable_abi_check" = yes)
|
||
])
|
||
|
||
|
||
sinclude(../libtool.m4)
|
||
dnl The lines below arrange for aclocal not to bring an installed
|
||
dnl libtool.m4 into aclocal.m4, while still arranging for automake to
|
||
dnl add a definition of LIBTOOL to Makefile.in.
|
||
ifelse(,,,[AC_SUBST(LIBTOOL)
|
||
AC_DEFUN([AM_PROG_LIBTOOL])
|
||
AC_DEFUN([AC_LIBTOOL_DLOPEN])
|
||
AC_DEFUN([AC_PROG_LD])
|
||
])
|
||
|
||
dnl
|
||
dnl Check whether S_ISREG (Posix) or S_IFREG is available in <sys/stat.h>.
|
||
dnl
|
||
|
||
AC_DEFUN(GLIBCXX_CHECK_S_ISREG_OR_S_IFREG, [
|
||
AC_CACHE_VAL(glibcxx_cv_S_ISREG, [
|
||
AC_TRY_LINK([#include <sys/stat.h>],
|
||
[struct stat buffer; fstat(0, &buffer); S_ISREG(buffer.st_mode); ],
|
||
[glibcxx_cv_S_ISREG=yes],
|
||
[glibcxx_cv_S_ISREG=no])
|
||
])
|
||
AC_CACHE_VAL(glibcxx_cv_S_IFREG, [
|
||
AC_TRY_LINK([#include <sys/stat.h>],
|
||
[struct stat buffer; fstat(0, &buffer); S_IFREG & buffer.st_mode; ],
|
||
[glibcxx_cv_S_IFREG=yes],
|
||
[glibcxx_cv_S_IFREG=no])
|
||
])
|
||
if test x$glibcxx_cv_S_ISREG = xyes; then
|
||
AC_DEFINE(HAVE_S_ISREG)
|
||
elif test x$glibcxx_cv_S_IFREG = xyes; then
|
||
AC_DEFINE(HAVE_S_IFREG)
|
||
fi
|
||
])
|
||
|
||
dnl
|
||
dnl Check whether poll is available in <poll.h>.
|
||
dnl
|
||
|
||
AC_DEFUN(GLIBCXX_CHECK_POLL, [
|
||
AC_CACHE_VAL(glibcxx_cv_POLL, [
|
||
AC_TRY_COMPILE([#include <poll.h>],
|
||
[struct pollfd pfd[1]; pfd[0].events = POLLIN; poll(pfd, 1, 0); ],
|
||
[glibcxx_cv_POLL=yes],
|
||
[glibcxx_cv_POLL=no])
|
||
])
|
||
if test x$glibcxx_cv_POLL = xyes; then
|
||
AC_DEFINE(HAVE_POLL)
|
||
fi
|
||
])
|
||
|
||
dnl
|
||
dnl Check whether writev is available in <sys/uio.h>.
|
||
dnl
|
||
|
||
AC_DEFUN(GLIBCXX_CHECK_WRITEV, [
|
||
AC_CACHE_VAL(glibcxx_cv_WRITEV, [
|
||
AC_TRY_COMPILE([#include <sys/uio.h>],
|
||
[struct iovec iov[2]; writev(0, iov, 0); ],
|
||
[glibcxx_cv_WRITEV=yes],
|
||
[glibcxx_cv_WRITEV=no])
|
||
])
|
||
if test x$glibcxx_cv_WRITEV = xyes; then
|
||
AC_DEFINE(HAVE_WRITEV)
|
||
fi
|
||
])
|
||
|
||
|
||
# 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
|
||
])
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for whether the Boost-derived checks should be turned on.
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_CONCEPT_CHECKS
|
||
dnl --enable-concept-checks turns them on.
|
||
dnl --disable-concept-checks leaves them off.
|
||
dnl + Usage: GLIBCXX_ENABLE_CONCEPT_CHECKS[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
||
dnl defaults to `no'.
|
||
AC_DEFUN(GLIBCXX_ENABLE_CONCEPT_CHECKS, [dnl
|
||
define([GLIBCXX_ENABLE_CONCEPT_CHECKS_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
AC_ARG_ENABLE(concept-checks,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-concept-checks use Boost-derived template checks [default=>>GLIBCXX_ENABLE_CONCEPT_CHECKS_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$enableval" in
|
||
yes) enable_concept_checks=yes ;;
|
||
no) enable_concept_checks=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable concept checks]) ;;
|
||
esac],
|
||
enable_concept_checks=GLIBCXX_ENABLE_CONCEPT_CHECKS_DEFAULT)dnl
|
||
dnl Option parsed, now set things appropriately
|
||
if test x"$enable_concept_checks" = xyes; then
|
||
AC_DEFINE(_GLIBCXX_CONCEPT_CHECKS)
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Add version tags to symbols in shared library (or not), additionally
|
||
dnl marking other symbols as private/local (or not).
|
||
dnl
|
||
dnl GLIBCXX_ENABLE_SYMVERS
|
||
dnl --enable-symvers=style adds a version script to the linker call when
|
||
dnl creating the shared library. The choice of version script is
|
||
dnl controlled by 'style'.
|
||
dnl --disable-symvers does not.
|
||
dnl + Usage: GLIBCXX_ENABLE_SYMVERS[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
||
dnl defaults to `no'. Passing `yes' tries to choose a default style
|
||
dnl based on linker characteristics. Passing 'no' disables versioning.
|
||
AC_DEFUN(GLIBCXX_ENABLE_SYMVERS, [dnl
|
||
define([GLIBCXX_ENABLE_SYMVERS_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
AC_ARG_ENABLE(symvers,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-symvers=style enables symbol versioning of the shared library [default=>>GLIBCXX_ENABLE_SYMVERS_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$enableval" in
|
||
yes) enable_symvers=yes ;;
|
||
no) enable_symvers=no ;;
|
||
# other names here, just as sanity checks
|
||
#gnu|sun|etcetera) enable_symvers=$enableval ;;
|
||
gnu) enable_symvers=$enableval ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable symvers]) ;;
|
||
esac],
|
||
enable_symvers=GLIBCXX_ENABLE_SYMVERS_DEFAULT)dnl
|
||
|
||
# If we never went through the GLIBCXX_CHECK_LINKER_FEATURES macro, then we
|
||
# don't know enough about $LD to do tricks...
|
||
if test x$enable_shared = xno ||
|
||
test "x$LD" = x ||
|
||
test x$glibcxx_gnu_ld_version = x; then
|
||
enable_symvers=no
|
||
fi
|
||
|
||
# Check to see if libgcc_s exists, indicating that shared libgcc is possible.
|
||
if test $enable_symvers != no; then
|
||
AC_MSG_CHECKING([for shared libgcc])
|
||
ac_save_CFLAGS="$CFLAGS"
|
||
CFLAGS=' -lgcc_s'
|
||
AC_TRY_LINK(, [return 0], glibcxx_shared_libgcc=yes, glibcxx_shared_libgcc=no)
|
||
CFLAGS="$ac_save_CFLAGS"
|
||
AC_MSG_RESULT($glibcxx_shared_libgcc)
|
||
fi
|
||
|
||
# For GNU ld, we need at least this version. The format is described in
|
||
# GLIBCXX_CHECK_LINKER_FEATURES above.
|
||
glibcxx_min_gnu_ld_version=21400
|
||
|
||
# Check to see if unspecified "yes" value can win, given results above.
|
||
# Change "yes" into either "no" or a style name.
|
||
if test $enable_symvers = yes ; then
|
||
if test $with_gnu_ld = yes &&
|
||
test $glibcxx_shared_libgcc = yes ;
|
||
then
|
||
if test $glibcxx_gnu_ld_version -ge $glibcxx_min_gnu_ld_version ; then
|
||
enable_symvers=gnu
|
||
else
|
||
# The right tools, the right setup, but too old. Fallbacks?
|
||
AC_MSG_WARN(=== Linker version $glibcxx_gnu_ld_version is too old for)
|
||
AC_MSG_WARN(=== full symbol versioning support in this release of GCC.)
|
||
AC_MSG_WARN(=== You would need to upgrade your binutils to version)
|
||
AC_MSG_WARN(=== $glibcxx_min_gnu_ld_version or later and rebuild GCC.)
|
||
AC_MSG_WARN([=== Symbol versioning will be disabled.])
|
||
enable_symvers=no
|
||
fi
|
||
else
|
||
# just fail for now
|
||
AC_MSG_WARN([=== You have requested some kind of symbol versioning, but])
|
||
AC_MSG_WARN([=== either you are not using a supported linker, or you are])
|
||
AC_MSG_WARN([=== not building a shared libgcc_s (which is required).])
|
||
AC_MSG_WARN([=== Symbol versioning will be disabled.])
|
||
enable_symvers=no
|
||
fi
|
||
fi
|
||
|
||
dnl Everything parsed; figure out what file to use.
|
||
case $enable_symvers in
|
||
no)
|
||
SYMVER_MAP=config/linker-map.dummy
|
||
;;
|
||
gnu)
|
||
SYMVER_MAP=config/linker-map.gnu
|
||
AC_DEFINE(_GLIBCXX_SYMVER)
|
||
;;
|
||
esac
|
||
|
||
AC_SUBST(SYMVER_MAP)
|
||
AC_SUBST(port_specific_symbol_files)
|
||
AM_CONDITIONAL(GLIBCXX_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
|
||
AC_MSG_CHECKING([versioning on shared library symbols])
|
||
AC_MSG_RESULT($enable_symvers)
|
||
])
|
||
|