dnl
-dnl Initialize configure bits.
+dnl Initialize basic configure bits, set toplevel_srcdir for Makefiles.
dnl
-dnl GLIBCPP_CONFIGURE
-AC_DEFUN(GLIBCPP_CONFIGURE, [
- dnl Default to --enable-multilib
+dnl GLIBCPP_TOPREL_CONFIGURE
+AC_DEFUN(GLIBCPP_TOPREL_CONFIGURE, [
+ dnl Default to --enable-multilib (this is also passed by default
+ dnl from the ubercommon-top-level configure)
AC_ARG_ENABLE(multilib,
[ --enable-multilib build hella library versions (default)],
[case "${enableval}" in
*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
esac], [multilib=yes])dnl
-# When building with srcdir == objdir, links to the source files will
-# be created in directories within the target_subdir. We have to
-# adjust toplevel_srcdir accordingly, so that configure finds
-# install-sh and other auxiliary files that live in the top-level
-# source directory.
-if test "${srcdir}" = "."; then
- if test -z "${with_target_subdir}"; then
- toprel=".."
- else
- if test "${with_target_subdir}" != "."; then
- toprel="${with_multisrctop}../.."
+ # When building with srcdir == objdir, links to the source files will
+ # be created in directories within the target_subdir. We have to
+ # adjust toplevel_srcdir accordingly, so that configure finds
+ # install-sh and other auxiliary files that live in the top-level
+ # source directory.
+ if test "${srcdir}" = "."; then
+ if test -z "${with_target_subdir}"; then
+ toprel=".."
else
- toprel="${with_multisrctop}.."
+ if test "${with_target_subdir}" != "."; then
+ toprel="${with_multisrctop}../.."
+ else
+ toprel="${with_multisrctop}.."
+ fi
fi
+ else
+ toprel=".."
fi
-else
- toprel=".."
-fi
-AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
-toplevel_srcdir=\${top_srcdir}/$toprel
-AC_SUBST(toplevel_srcdir)
-
-# Export build and source directories.
-# These need to be absolute paths, yet at the same time need to
-# canonicalize only relative paths, because then amd will not unmount
-# drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
-glibcpp_builddir=`pwd`
-case $srcdir in
-[\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
-*) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
-esac
-AC_SUBST(glibcpp_builddir)
-AC_SUBST(glibcpp_srcdir)
+ AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
+ toplevel_srcdir=\${top_srcdir}/$toprel
+ AC_SUBST(toplevel_srcdir)
+])
+
+dnl
+dnl Initialize the rest of the library configury.
+dnl
+dnl GLIBCPP_CONFIGURE
+AC_DEFUN(GLIBCPP_CONFIGURE, [
+ # Export build and source directories.
+ # These need to be absolute paths, yet at the same time need to
+ # canonicalize only relative paths, because then amd will not unmount
+ # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
+ glibcpp_builddir=`${PWDCMD-pwd}`
+ case $srcdir in
+ [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
+ *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
+ esac
+ AC_SUBST(glibcpp_builddir)
+ AC_SUBST(glibcpp_srcdir)
+
+ dnl This is here just to satisfy automake.
+ ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
-dnl This is here just to satisfy automake.
-ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
+ AC_PROG_AWK
+ # Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.5x, can also
+ # be 'cp -p' if linking isn't available. Uncomment the next line to
+ # force a particular method.
+ #ac_cv_prog_LN_S='cp -p'
+ AC_PROG_LN_S
-AC_PROG_AWK
-# Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.50+, can also
-# be 'cp -p' if linking isn't available.
-#ac_cv_prog_LN_S='cp -p'
-AC_PROG_LN_S
+ # We use these options to decide which functions to include.
+ AC_ARG_WITH(target-subdir,
+ [ --with-target-subdir=SUBDIR
+ configuring in a subdirectory])
+ AC_ARG_WITH(cross-host,
+ [ --with-cross-host=HOST configuring with a cross compiler])
-# We use these options to decide which functions to include.
-AC_ARG_WITH(target-subdir,
-[ --with-target-subdir=SUBDIR
- configuring in a subdirectory])
-AC_ARG_WITH(cross-host,
-[ --with-cross-host=HOST configuring with a cross compiler])
+ AC_ARG_WITH(newlib,
+ [ --with-newlib Configuring with newlib])
glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
AC_SUBST(glibcpp_basedir)
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
+ # 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 is addressed in later versions of autoconf.
+
+ 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
+ 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"
+ 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 $ac_cv_prog_cc_g = yes; then
+ CFLAGS="-g -O2"
+ else
+ CFLAGS="-O2"
+ fi
else
- CFLAGS="-O2"
+ GCC=
+ test "${CFLAGS+set}" = set || CFLAGS="-g"
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([$0], [AC_PROG_CXXCPP])dnl
-dnl Fool anybody using AC_PROG_CXX.
-AC_PROVIDE([AC_PROG_CXX])
-# Use glibcpp_CXX so that we do not cause CXX to be cached with the
-# flags that come in CXX while configuring libstdc++. They're different
-# from those used for all other target libraries. If CXX is set in
-# the environment, respect that here.
-glibcpp_CXX=$CXX
-AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
-AC_SUBST(glibcpp_CXX)
-CXX=$glibcpp_CXX
-test -z "$glibcpp_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"
+ LIB_AC_PROG_CC
+
+ # Likewise for AC_PROG_CXX. We can't just call it directly because g++
+ # will try to link in libstdc++.
+ AC_DEFUN(LIB_AC_PROG_CXX,
+ [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
+ dnl Fool anybody using AC_PROG_CXX.
+ AC_PROVIDE([AC_PROG_CXX])
+ # Use glibcpp_CXX so that we do not cause CXX to be cached with the
+ # flags that come in CXX while configuring libstdc++. They're different
+ # from those used for all other target libraries. If CXX is set in
+ # the environment, respect that here.
+ glibcpp_CXX=$CXX
+ AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
+ AC_SUBST(glibcpp_CXX)
+ CXX=$glibcpp_CXX
+ test -z "$glibcpp_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 $ac_cv_prog_cxx_g = yes; then
+ CXXFLAGS="-g -O2"
+ else
+ CXXFLAGS="-O2"
+ fi
else
- CXXFLAGS="-O2"
+ GXX=
+ test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
fi
-else
- GXX=
- test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
-fi
-])
+ ])
-LIB_AC_PROG_CXX
+ LIB_AC_PROG_CXX
- # For some reason, gettext needs this.
- AC_ISC_POSIX
+ # For directory versioning (e.g., headers) and other variables.
+ AC_MSG_CHECKING([for GCC version number])
+ gcc_version=`$glibcpp_CXX -dumpversion`
+ AC_MSG_RESULT($gcc_version)
+
+ # For some reason, gettext needs this.
+ AC_ISC_POSIX
AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(AR, ar)
AC_EXEEXT
fi
- . [$]{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
+ # Find platform-specific directories containing configuration info. In
# addition to possibly modifying the same flags, it also sets up symlinks.
- GLIBCPP_CHECK_TARGET
-
- #
+ GLIBCPP_CHECK_HOST
])
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 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
# this is the suspicious part
CXXFLAGS=''
fi
- if test x"$ac_fdsections" = x"yes" &&
- test x"$enable_debug" = x"no"; then
+ if test x"$ac_fdsections" = x"yes"; then
SECTION_FLAGS='-ffunction-sections -fdata-sections'
fi
AC_MSG_RESULT($ac_fdsections)
# 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,
+ # 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)
+ int main(void)
{
try { throw 1; }
catch (...) { };
fi
# Set linker optimization flags.
- if test x"$with_gnu_ld" = x"yes" &&
- test x"$enable_debug" = x"no"; then
+ if test x"$with_gnu_ld" = x"yes"; then
OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
fi
#ifdef HAVE_IEEEFP_H
#include <ieeefp.h>
#endif
- ],
- [ $1(0);],
+ ],
+ [ $1(0);],
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
AC_LANG_RESTORE
])
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)
+ 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)
+ 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 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_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <math.h>],
- [ $1(0, 0);],
+ AC_TRY_COMPILE([#include <math.h>],
+ [ $1(0, 0);],
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
AC_LANG_RESTORE
])
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)
+ 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)
+ AC_CHECK_FUNCS(_$1)
fi
fi
])
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <math.h>],
- [ $1(0, 0, 0);],
+ 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
])
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)
+ 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)
+ AC_CHECK_FUNCS(_$1)
fi
fi
])
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <stdlib.h>],
- [ $1(0, 0);],
+ 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)
+ AC_CHECK_FUNCS($1)
fi
])
dnl
-dnl Because the builtins are picky picky picky about the arguments they take,
+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 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3
+AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_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 <stdlib.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_$1_use)
+ if test x$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
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([#include <math.h>],
- [ $1(0);],
+ AC_TRY_COMPILE([#include <math.h>],
+ [ $1(0);],
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
AC_LANG_RESTORE
])
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);],
+ AC_TRY_LINK([#include <math.h>],
+ [ $1(0);],
[glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
])
fi
dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
dnl Test for builtin math functions.
- dnl These are made in gcc/c-common.c
+ dnl These are made in gcc/c-common.c
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
fi
])
-
dnl
-dnl Check to see what the underlying c library
-dnl These checks need to do two things:
+dnl Check to see what the underlying c library is like
+dnl These checks need to do two things:
dnl 1) make sure the name is declared when using the c++ compiler
dnl 2) make sure the name has "C" linkage
dnl This might seem like overkill but experience has shown that it's not...
CXXFLAGS="$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 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...
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
float_round,
ceilf floorf)
+ GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
dnl
-dnl Check to see if there is native support for complex
+dnl Check to see if there is native support for complex
dnl
dnl Don't compile bits in math/* if native support exits.
dnl
AC_CHECK_LIB(m, main)
AC_REPLACE_MATHFUNCS(nan copysignf)
- dnl Compile the long double complex functions only if the function
+ 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 GLIBCPP_CHECK_MATH_SUPPORT macro, above.
- USE_COMPLEX_LONG_DOUBLE=no
if test x$ac_cv_func_copysignl = x"yes"; then
- USE_COMPLEX_LONG_DOUBLE=yes
- AC_REPLACE_MATHFUNCS(signbitl)
+ AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
fi
- AC_SUBST(USE_COMPLEX_LONG_DOUBLE)
+ if test -n "$LIBMATHOBJS"; then
+ need_libmath=yes
+ fi
+ AC_SUBST(LIBMATHOBJS)
+ AM_CONDITIONAL(GLIBCPP_BUILD_LIBMATH, test "$need_libmath" = yes)
])
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 $os_include_dir)
+dnl
+dnl GLIBCPP_CHECK_HOST
+AC_DEFUN(GLIBCPP_CHECK_HOST, [
+ . [$]{glibcpp_basedir}/configure.host
+ AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
+ AC_MSG_RESULT(OS config directory is $os_include_dir)
])
dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
dnl must have been previously checked.)
dnl
-dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
+dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
dnl
dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
+ dnl Wide characters disabled by default.
+ enable_wchar_t=no
dnl Test wchar.h for mbstate_t, which is needed for char_traits and
dnl others even if wchar_t support is not on.
AC_MSG_CHECKING([for mbstate_t])
AC_TRY_COMPILE([#include <wchar.h>],
- [mbstate_t teststate;],
+ [mbstate_t teststate;],
have_mbstate_t=yes, have_mbstate_t=no)
AC_MSG_RESULT($have_mbstate_t)
if test x"$have_mbstate_t" = xyes; then
dnl Sanity check for existence of ISO C99 headers for extended encoding.
AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
- AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
-
+ AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
+
dnl Only continue checking if the ISO C99 headers exist and support is on.
if test x"$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;],
+ [int i = WCHAR_MIN; int j = WCHAR_MAX;],
has_wchar_minmax=yes, has_wchar_minmax=no)
AC_MSG_RESULT($has_wchar_minmax)
-
+
dnl Test wchar.h for WEOF, which is what we use to determine whether
dnl to specialize for char_traits<wchar_t> or not.
AC_MSG_CHECKING([for WEOF])
[wint_t i = WEOF;],
has_weof=yes, has_weof=no)
AC_MSG_RESULT($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 fgetwc fgetws fputwc fputws fwide \
+ 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 \
ac_isoC99_wchar_t=no
fi
AC_MSG_RESULT($ac_isoC99_wchar_t)
-
- dnl Use iconv for wchar_t to char conversions. As such, check for
+
+ dnl Use iconv for wchar_t to char conversions. As such, check for
dnl X/Open Portability Guide, version 2 features (XPG2).
AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
ac_XPG2funcs=yes, ac_XPG2funcs=no)
-
+
LIBS="$ac_save_LIBS"
AC_MSG_CHECKING([for XPG2 wchar_t support])
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"$ac_XPG2_wchar_t" = xyes; then
+ if test x"$ac_isoC99_wchar_t" = xyes &&
+ test x"$ac_XPG2_wchar_t" = xyes; then
AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
- AC_MSG_RESULT("yes")
- else
- AC_MSG_RESULT("no")
+ enable_wchar_t=yes
fi
- else
- dnl Wide characters disabled by the user.
- AC_MSG_WARN([wchar_t support disabled.])
fi
+ AC_MSG_CHECKING([for enabled wchar_t specializations])
+ AC_MSG_RESULT($enable_wchar_t)
+ AM_CONDITIONAL(GLIBCPP_TEST_WCHAR_T, test "$enable_wchar_t" = yes)
])
dnl
-dnl Check for special debugging mode; not for production use.
+dnl Check to see if debugging libraries are to be built.
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
+dnl --enable-debug
+dnl builds a separate set of debugging libraries in addition to the
+dnl normal (shared, static) libstdc++ binaries.
+dnl
+dnl --disable-debug
+dnl builds only one (non-debug) version of libstdc++.
+dnl
+dnl --enable-debug-flags=FLAGS
+dnl iff --enable-debug == yes, then use FLAGS to build the debug library.
+dnl
dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
dnl defaults to `no'.
define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
AC_ARG_ENABLE(debug,
changequote(<<, >>)dnl
-<< --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
+<< --enable-debug build extra debug library [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
changequote([, ])dnl
[case "${enableval}" in
yes) enable_debug=yes ;;
*) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
esac],
enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
+AC_MSG_CHECKING([for additional debug build])
+AC_MSG_RESULT($enable_debug)
+AM_CONDITIONAL(GLIBCPP_BUILD_DEBUG, test "$enable_debug" = yes)
+])
+
+
+dnl Check for explicit debug flags.
+dnl
+dnl GLIBCPP_ENABLE_DEBUG_FLAGS
+dnl
+dnl --enable-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-debug-flags does nothing.
+dnl + Usage: GLIBCPP_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(GLIBCPP_ENABLE_DEBUG_FLAGS, [dnl
+define([GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
+AC_ARG_ENABLE(debug_flags,
+changequote(<<, >>)dnl
+<< --enable-debug-flags=FLAGS pass compiler FLAGS when building debug
+ library;[default=>>GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT],
+changequote([, ])dnl
+[case "${enableval}" in
+ none) ;;
+ -*) enable_debug_flags="${enableval}" ;;
+ *) AC_MSG_ERROR([Unknown argument to extra debugging flags]) ;;
+ esac],
+enable_debug_flags=GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT)dnl
dnl Option parsed, now set things appropriately
-case "${enable_debug}" in
- yes)
- DEBUG_FLAGS='-O0 -ggdb3'
- ;;
- no)
- DEBUG_FLAGS='-g'
+case x"$enable_debug" in
+ xyes)
+ case "$enable_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 the same as --disable or --enable=no.
AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
-AC_ARG_ENABLE(cxx-flags,
+AC_MSG_CHECKING([for extra compiler flags for building])
+AC_ARG_ENABLE(cxx_flags,
changequote(<<, >>)dnl
<< --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
- [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
+ [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
changequote([, ])dnl
-[case "x$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
+[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=GLIBCPP_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
+ 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 GLIBCPP_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
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 enable model for target locale package.
--enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
- ],
+ ],
if test x$enable_clocale = xno; then
enable_clocale=no
fi,
xlinux* | xgnu*)
AC_EGREP_CPP([_GLIBCPP_ok], [
#include <features.h>
- #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
+ #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
_GLIBCPP_ok
#endif
], enable_clocale_flag=gnu, enable_clocale_flag=generic)
AC_TRY_RUN([
#define _GNU_SOURCE 1
#include <locale.h>
+ #include <string.h>
+ #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+ extern __typeof(newlocale) __newlocale;
+ extern __typeof(duplocale) __duplocale;
+ extern __typeof(strcoll_l) __strcoll_l;
+ #endif
int main()
{
const char __one[] = "Äuglein Augmen";
j = __strcoll_l(__one, __two, loc_dup);
return 0;
}
- ],
+ ],
[enable_clocale_flag=gnu],[enable_clocale_flag=generic],
[enable_clocale_flag=generic])
fi
esac
fi
+ dnl Deal with gettext issues.
+ AC_ARG_ENABLE(nls,
+ [ --enable-nls use Native Language Support (default)],
+ , enable_nls=yes)
+ USE_NLS=no
+
dnl Set configure bits for specified locale package
case x${enable_clocale_flag} in
xgeneric)
AC_MSG_RESULT(generic)
- # Don't use gettext.
- USE_NLS=no
-
- CLOCALE_H=config/locale/c_locale_generic.h
- CLOCALE_CC=config/locale/c_locale_generic.cc
- CCODECVT_H=config/locale/codecvt_specializations_generic.h
- CCOLLATE_CC=config/locale/collate_members_generic.cc
- CCTYPE_CC=config/locale/ctype_members_generic.cc
- CMESSAGES_H=config/locale/messages_members_generic.h
- CMESSAGES_CC=config/locale/messages_members_generic.cc
- CMONEY_CC=config/locale/moneypunct_members_generic.cc
- CNUMERIC_CC=config/locale/numpunct_members_generic.cc
- CTIME_CC=config/locale/time_members_generic.cc
+ 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
+ # 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.
- # Need to deal with MSGFMT, USE_NLS, and glibcpp_[P,M]OFILES
- USE_NLS=yes
+ # 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 $ALL_LINGUAS; do \
glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
AC_SUBST(glibcpp_MOFILES)
AC_SUBST(glibcpp_POFILES)
- CLOCALE_H=config/locale/c_locale_gnu.h
- CLOCALE_CC=config/locale/c_locale_gnu.cc
- CCODECVT_H=config/locale/codecvt_specializations_ieee_1003.1-200x.h
- CCOLLATE_CC=config/locale/collate_members_gnu.cc
- CCTYPE_CC=config/locale/ctype_members_gnu.cc
- CMESSAGES_H=config/locale/messages_members_gnu.h
- CMESSAGES_CC=config/locale/messages_members_gnu.cc
- CMONEY_CC=config/locale/moneypunct_members_gnu.cc
- CNUMERIC_CC=config/locale/numpunct_members_gnu.cc
- CTIME_CC=config/locale/time_members_gnu.cc
+ 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)
- AC_MSG_RESULT(generic)
-
- # Don't use gettext.
- USE_NLS=no
-
- CLOCALE_H=config/locale/c_locale_ieee_1003.1-200x.h
- CLOCALE_CC=config/locale/c_locale_ieee_1003.1-200x.cc
- CCODECVT_H=config/locale/codecvt_specializations_ieee_1003.1-200x.h
- CCOLLATE_CC=config/locale/collate_members_generic.cc
- CCTYPE_CC=config/locale/ctype_members_generic.cc
- CMESSAGES_H=config/locale/messages_members_ieee_1003.1-200x.h
- CMESSAGES_CC=config/locale/messages_members_ieee_1003.1-200x.cc
- CMONEY_CC=config/locale/moneypunct_members_generic.cc
- CNUMERIC_CC=config/locale/numpunct_members_generic.cc
- CTIME_CC=config/locale/time_members_generic.cc
+ 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
glibcpp_localedir=${glibcpp_builddir}/po/share/locale
AC_SUBST(glibcpp_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 $USE_NLS = yes; then
+ AC_DEFINE(_GLIBCPP_USE_NLS)
+ fi
+
AC_SUBST(USE_NLS)
AC_SUBST(CLOCALE_H)
AC_SUBST(CCODECVT_H)
AC_SUBST(CMESSAGES_H)
- AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc)
- AC_LINK_FILES($CCOLLATE_CC, src/collate.cc)
- AC_LINK_FILES($CCTYPE_CC, src/ctype.cc)
- AC_LINK_FILES($CMESSAGES_CC, src/messages.cc)
- AC_LINK_FILES($CMONEY_CC, src/moneypunct.cc)
- AC_LINK_FILES($CNUMERIC_CC, src/numpunct.cc)
- AC_LINK_FILES($CTIME_CC, src/time.cc)
+ 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 GLIBCPP_ENABLE_CSTDIO
dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
-dnl
+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 enable stdio for target io package.
--enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
- ],
+ ],
if test x$enable_cstdio = xno; then
enable_cstdio=stdio
fi,
AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
# Need to check and see what version of glibc is being used. If
- # it's not glibc-2.2 or higher, then we'll need to go ahead and
+ # it's not glibc-2.2 or higher, then we'll need to go ahead and
# compile most of libio for linux systems.
if test x$has_libio = x"yes"; then
case "$target" in
AC_MSG_CHECKING([for glibc version >= 2.2])
AC_EGREP_CPP([ok], [
#include <features.h>
- #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
+ #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
ok
#endif
], glibc_satisfactory=yes, glibc_satisfactory=no)
# XXX at the moment, admit defeat and force the recompilation
# XXX of glibc even on glibc-2.2 systems, because libio is not synched.
- glibc_satisfactory=no
+ glibc_satisfactory=no
if test x$glibc_satisfactory = x"yes"; then
need_libio=no
- need_wlibio=no
+ need_wlibio=no
else
need_libio=yes
# bkoz XXX need to add checks to enable this
esac
AC_SUBST(CSTDIO_H)
AC_SUBST(BASIC_FILE_H)
- AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc)
+ AC_SUBST(BASIC_FILE_CC)
# 2000-08-04 bkoz hack
CCODECVT_C=config/io/c_io_libio_codecvt.c
dnl
+dnl Check to see if building and using a C++ precompiled header can be done.
+dnl
+dnl GLIBCPP_CHECK_PCH
+dnl
+dnl If it looks like it may work, flip bits on in include/Makefile.am
+dnl
+AC_DEFUN(GLIBCPP_CHECK_PCH, [
+ ac_test_CXXFLAGS="${CXXFLAGS+set}"
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS='-Werror -Winvalid-pch -Wno-deprecated -x c++-header'
+
+ AC_MSG_CHECKING([for compiler that seems to compile .gch files])
+ if test x${glibcpp_pch_comp+set} != xset; then
+ AC_CACHE_VAL(glibcpp_pch_comp, [
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([#include <math.h>
+ ],
+ [ $1(0);],
+ [glibcpp_pch_comp=yes], [glibcpp_pch_comp=no])
+ AC_LANG_RESTORE
+ ])
+ fi
+ AC_MSG_RESULT([$glibcpp_pch_comp])
+
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AM_CONDITIONAL(GLIBCPP_BUILD_PCH, test "$glibcpp_pch_comp" = yes)
+ if test "$glibcpp_pch_comp" = yes; then
+ glibcpp_PCHFLAGS="-include bits/stdc++.h"
+ else
+ glibcpp_PCHFLAGS=""
+ fi
+ AC_SUBST(glibcpp_PCHFLAGS)
+])
+
+dnl
dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
dnl We must stage the required headers so that they will be installed
dnl with the library (unlike libgcc, the STL implementation is provided
bar();
}
EOF
- old_CXXFLAGS="$CXXFLAGS"
+ old_CXXFLAGS="$CXXFLAGS"
CXXFLAGS=-S
if AC_TRY_EVAL(ac_compile); then
if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
dnl
+dnl Check for libunwind exception handling support. If enabled then
+dnl we assume that the _Unwind_* functions that make up the Unwind ABI
+dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
+dnl libunwind instead of libgcc and that libstdc++ has a dependency
+dnl on libunwind as well as libgcc.
+dnl
+dnl GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS
+dnl --enable-libunwind-exceptions forces the use of libunwind.
+dnl --disable-libunwind-exceptions assumes there is no libunwind.
+dnl
+dnl Define _GLIBCPP_LIBUNWIND_EXCEPTIONS if requested.
+dnl
+AC_DEFUN(GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS, [
+ AC_MSG_CHECKING([for use of libunwind])
+ AC_ARG_ENABLE(libunwind-exceptions,
+ [ --enable-libunwind-exceptions force use of libunwind for exceptions],
+ use_libunwind_exceptions=$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 GLIBCPP_ENABLE_C99
*) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
esac],
enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
-
+
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
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_TRY_COMPILE([#include <stdlib.h>],
+ [ lldiv_t mydivt;],
[ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
])
AC_MSG_RESULT($ac_c99_lldiv_t)
AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
if test x"$ac_c99_lldiv_t" = x"no"; then
- ac_c99_stdlib=no;
- fi;
+ ac_c99_stdlib=no;
+ fi;
AC_MSG_RESULT($ac_c99_stdlib)
# Check for the existence of <wchar.h> functions used if C99 is enabled.
# XXX the wchar.h checks should be rolled into the general C99 bits.
ac_c99_wchar=yes;
AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
- AC_TRY_COMPILE([#include <wchar.h>],
+ AC_TRY_COMPILE([#include <wchar.h>],
[wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
- AC_TRY_COMPILE([#include <wchar.h>],
+ AC_TRY_COMPILE([#include <wchar.h>],
[wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
- AC_TRY_COMPILE([#include <wchar.h>],
+ AC_TRY_COMPILE([#include <wchar.h>],
[wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
AC_MSG_RESULT($ac_c99_wchar)
test x"$ac_c99_stdio" = x"no" ||
test x"$ac_c99_stdlib" = x"no" ||
test x"$ac_c99_wchar" = x"no"; then
- enable_c99=no;
- fi;
+ enable_c99=no;
+ fi;
AC_MSG_RESULT($enable_c99)
# Option parsed, now set things appropriately
dnl
-dnl Check for what kind of C headers to use.
+dnl Check for what type 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 Where DEFAULT is either `c' or `c_std'.
dnl If ommitted, it defaults to `c_std'.
AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
AC_MSG_CHECKING([for c header strategy to use])
AC_ARG_ENABLE(cheaders,
changequote(<<, >>)dnl
-<< --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
+<< --enable-cheaders=MODEL construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
changequote([, ])
[case "$enableval" in
- c)
- enable_cheaders=c
- ;;
- c_std)
- enable_cheaders=c_std
+ c)
+ enable_cheaders=c
;;
- c_shadow)
- enable_cheaders=c_shadow
+ c_std)
+ enable_cheaders=c_std
;;
- *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
+ *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
;;
esac],
enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
dnl Option parsed, now set things appropriately
case "$enable_cheaders" in
- c_shadow)
- CSHADOW_FLAGS="-fno-builtin"
- C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow'
- AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS)
- ;;
- c_std)
- CSHADOW_FLAGS=""
+ c_std)
C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
;;
- c)
- CSHADOW_FLAGS=""
+ c)
C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
;;
esac
- AC_SUBST(CSHADOW_FLAGS)
AC_SUBST(C_INCLUDE_DIR)
- AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow)
+ AM_CONDITIONAL(GLIBCPP_C_HEADERS_C, test "$enable_cheaders" = c)
+ AM_CONDITIONAL(GLIBCPP_C_HEADERS_C_STD, test "$enable_cheaders" = c_std)
+ AM_CONDITIONAL(GLIBCPP_C_HEADERS_COMPATIBILITY, test "$c_compatibility" = yes)
])
dnl LIBMATH_INCLUDES
dnl LIBSUPCXX_INCLUDES
dnl LIBIO_INCLUDES
-dnl CSHADOW_INCLUDES
dnl
dnl GLIBCPP_EXPORT_INCLUDES
AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
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
+ # 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'
+ WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings'
AC_SUBST(WARN_FLAGS)
])
glibcpp_toolexeclibdir=no
glibcpp_prefixdir=${prefix}
-AC_MSG_CHECKING([for interface version number])
-libstdcxx_interface=$INTERFACE
-AC_MSG_RESULT($libstdcxx_interface)
-
# Process the option --with-gxx-include-dir=<path to include-files directory>
AC_MSG_CHECKING([for --with-gxx-include-dir])
AC_ARG_WITH(gxx-include-dir,
# Option set, now we can test it.
AC_MSG_RESULT($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 $version_specific_libs = yes; then
# Need the gcc compiler version to know where to install libraries
# and header files if --enable-version-specific-runtime-libs option
# is selected.
- changequote(,)dnl
- gcc_version_trigger=${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)/'${gcc_version}/include/g++
+ if test x"$gxx_include_dir" = x"no"; then
+ gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/c++
+ fi
glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
- changequote([,])dnl
-fi
-
-# 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/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"$glibcpp_toolexecdir" = x"no"; then
if test -n "$with_cross_host" &&
test x"$with_cross_host" != x"no"; then
glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
- glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
+ glibcpp_toolexeclibdir='$(toolexecdir)/lib'
else
glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
- glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
+ glibcpp_toolexeclibdir='$(libdir)'
fi
+ multi_os_directory=`$CC -print-multi-os-directory`
+ case $multi_os_directory in
+ .) ;; # Avoid trailing /.
+ *) glibcpp_toolexeclibdir=$glibcpp_toolexeclibdir/$multi_os_directory ;;
+ esac
fi
AC_MSG_CHECKING([for install location])
dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
AC_DEFUN(AC_REPLACE_MATHFUNCS,
-[AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])
-AC_SUBST(LIBMATHOBJS)dnl
-])
-
+[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 Check for headers for, and arguments to, the setrlimit() function.
dnl Used only in testsuite_hooks.h.
AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
- AC_TRY_COMPILE([#include <sys/resource.h>
- #include <unistd.h>
+ AC_TRY_COMPILE([#include <unistd.h>
+ #include <sys/time.h>
+ #include <sys/resource.h>
], [ int f = RLIMIT_$1 ; ],
[glibcpp_mresult=1], [glibcpp_mresult=0])
AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
])
AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
setrlimit_have_headers=yes
- AC_CHECK_HEADERS(sys/resource.h unistd.h,
+ AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h,
[],
setrlimit_have_headers=no)
# If don't have the headers, then we can't run the tests now, and we
# Check for rlimit, setrlimit.
AC_CACHE_VAL(ac_setrlimit, [
- AC_TRY_COMPILE([#include <sys/resource.h>
- #include <unistd.h>
- ],
- [ struct rlimit r; setrlimit(0, &r);],
+ AC_TRY_COMPILE([#include <unistd.h>
+ #include <sys/time.h>
+ #include <sys/resource.h>
+ ],
+ [ struct rlimit r; setrlimit(0, &r);],
[ac_setrlimit=yes], [ac_setrlimit=no])
])
fi
GLIBCPP_CHECK_SETRLIMIT
# Look for setenv, so that extended locale tests can be performed.
- AC_CHECK_FUNCS(setenv)
+ GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
+
+ # Export file names for ABI checking.
+ baseline_file="${glibcpp_srcdir}/config/abi/${abi_baseline_triplet}/baseline_symbols.txt"
+ AC_SUBST(baseline_file)
+
+ case "$target" in
+ *-*-cygwin* ) enable_abi_check=no ;;
+ * ) enable_abi_check=yes ;;
+ esac
+
+ # Don't do ABI checking unless native.
+ AM_CONDITIONAL(GLIBCPP_BUILD_ABI_CHECK,
+ test x"$build" = x"$host" && test -z "$with_cross_host" \
+ && test "$enable_abi_check" = yes )
])
AC_DEFUN([AC_PROG_LD])
])
+dnl
+dnl Check whether S_ISREG (Posix) or S_IFREG is available in <sys/stat.h>.
+dnl
+
+AC_DEFUN(GLIBCPP_CHECK_S_ISREG_OR_S_IFREG, [
+ AC_CACHE_VAL(glibcpp_cv_S_ISREG, [
+ AC_TRY_LINK([#include <sys/stat.h>],
+ [struct stat buffer; fstat(0, &buffer); S_ISREG(buffer.st_mode); ],
+ [glibcpp_cv_S_ISREG=yes],
+ [glibcpp_cv_S_ISREG=no])
+ ])
+ AC_CACHE_VAL(glibcpp_cv_S_IFREG, [
+ AC_TRY_LINK([#include <sys/stat.h>],
+ [struct stat buffer; fstat(0, &buffer); S_IFREG & buffer.st_mode; ],
+ [glibcpp_cv_S_IFREG=yes],
+ [glibcpp_cv_S_IFREG=no])
+ ])
+ if test x$glibcpp_cv_S_ISREG = xyes; then
+ AC_DEFINE(HAVE_S_ISREG)
+ elif test x$glibcpp_cv_S_IFREG = xyes; then
+ AC_DEFINE(HAVE_S_IFREG)
+ fi
+])
+
+dnl
+dnl Check whether poll is available in <poll.h>.
+dnl
+
+AC_DEFUN(GLIBCPP_CHECK_POLL, [
+ AC_CACHE_VAL(glibcpp_cv_POLL, [
+ AC_TRY_COMPILE([#include <poll.h>],
+ [struct pollfd pfd[1]; pfd[0].events = POLLIN; poll(pfd, 1, 0); ],
+ [glibcpp_cv_POLL=yes],
+ [glibcpp_cv_POLL=no])
+ ])
+ if test x$glibcpp_cv_POLL = xyes; then
+ AC_DEFINE(HAVE_POLL)
+ fi
+])
# Check whether LC_MESSAGES is available in <locale.h>.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
dnl --disable-symvers does not.
dnl + Usage: GLIBCPP_ENABLE_SYMVERS[(DEFAULT)]
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
-dnl defaults to `yes'. Passing `yes' tries to choose a default style
-dnl based on linker characteristics. Passing 'no' disables versioning.
+dnl defaults to `no'. Passing `yes' tries to choose a default style
+dnl based on linker characteristics. Passing 'no' disables versioning.
AC_DEFUN(GLIBCPP_ENABLE_SYMVERS, [dnl
define([GLIBCPP_ENABLE_SYMVERS_DEFAULT], ifelse($1, yes, yes, no))dnl
AC_ARG_ENABLE(symvers,
enable_symvers=GLIBCPP_ENABLE_SYMVERS_DEFAULT)dnl
# If we never went through the GLIBCPP_CHECK_LINKER_FEATURES macro, then we
-# don't know enough about $LD to do tricks...
-if test $enable_shared = no || test x$LD = x ; then
+# don't know enough about $LD to do tricks...
+if test x$enable_shared = xno ||
+ test "x$LD" = x ||
+ test x$glibcpp_gnu_ld_version = x; then
enable_symvers=no
fi
# Check to see if libgcc_s exists, indicating that shared libgcc is possible.
-AC_MSG_CHECKING([for shared libgcc])
-ac_save_CFLAGS="$CFLAGS"
-CFLAGS=' -lgcc_s'
-AC_TRY_LINK( , [return 0], glibcpp_shared_libgcc=yes, glibcpp_shared_libgcc=no)
-CFLAGS="$ac_save_CFLAGS"
-AC_MSG_RESULT($glibcpp_shared_libgcc)
+if test $enable_symvers != no; then
+ AC_MSG_CHECKING([for shared libgcc])
+ ac_save_CFLAGS="$CFLAGS"
+ CFLAGS=' -lgcc_s'
+ AC_TRY_LINK(, [return 0], glibcpp_shared_libgcc=yes, glibcpp_shared_libgcc=no)
+ CFLAGS="$ac_save_CFLAGS"
+ AC_MSG_RESULT($glibcpp_shared_libgcc)
+fi
# For GNU ld, we need at least this version. It's 2.12 in the same format
# as the tested-for version. See GLIBCPP_CHECK_LINKER_FEATURES for more.
glibcpp_min_gnu_ld_version=21200
# Check to see if unspecified "yes" value can win, given results
-# above.
+# above.
if test $enable_symvers = yes ; then
if test $with_gnu_ld = yes &&
- test $glibcpp_gnu_ld_version -ge $glibcpp_min_gnu_ld_version &&
test $glibcpp_shared_libgcc = yes ;
then
- enable_symvers=gnu
+ if test $glibcpp_gnu_ld_version -ge $glibcpp_min_gnu_ld_version ; then
+ enable_symvers=gnu
+ else
+ ac_test_CFLAGS="${CFLAGS+set}"
+ ac_save_CFLAGS="$CFLAGS"
+ CFLAGS='-shared -Wl,--version-script,conftest.map'
+ enable_symvers=no
+ changequote(,)
+ echo 'FOO { global: f[a-z]o; local: *; };' > conftest.map
+ changequote([,])
+ AC_TRY_LINK([int foo;],, enable_symvers=gnu)
+ if test "$ac_test_CFLAGS" = set; then
+ CFLAGS="$ac_save_CFLAGS"
+ else
+ # this is the suspicious part
+ CFLAGS=''
+ fi
+ rm -f conftest.map
+ fi
else
# just fail for now
enable_symvers=no
dnl Everything parsed; figure out what file to use.
case $enable_symvers in
no)
- LINKER_MAP=config/linker-map.dummy
+ SYMVER_MAP=config/linker-map.dummy
;;
gnu)
- LINKER_MAP=config/linker-map.gnu
+ SYMVER_MAP=config/linker-map.gnu
+ AC_DEFINE(_GLIBCPP_SYMVER)
;;
esac
-AC_LINK_FILES($LINKER_MAP, src/linker.map)
+AC_SUBST(SYMVER_MAP)
AM_CONDITIONAL(GLIBCPP_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
AC_MSG_CHECKING([versioning on shared library symbols])
AC_MSG_RESULT($enable_symvers)
])
-
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