# Process this file with autoreconf to produce a configure script.
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
AC_INIT(package-unused, version-unused,, libstdc++)
AC_CONFIG_SRCDIR(src/ios.cc)
AC_CONFIG_HEADER(config.h)
### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD
# For libtool versioning info, format is CURRENT:REVISION:AGE
-libtool_VERSION=6:11:0
+libtool_VERSION=6:14:0
AC_SUBST(libtool_VERSION)
# Find the rest of the source tree framework.
AH_TEMPLATE(PACKAGE, [Name of package])
AH_TEMPLATE(VERSION, [Version number of package])
-# Runs configure.host, finds CC, CXX, and assorted other critical bits. Sets
+# We're almost certainly being configured before anything else which uses
+# C++, so all of our AC_PROG_* discoveries will be cached. It's vital that
+# we not cache the value of CXX that we "discover" here, because it's set
+# to something unique for us and libjava. Other target libraries need to
+# find CXX for themselves. We yank the rug out from under the normal AC_*
+# process by sneakily renaming the cache variable. This also lets us debug
+# the value of "our" CXX in postmortems.
+#
+# We must also force CXX to /not/ be a precious variable, otherwise the
+# wrong (non-multilib-adjusted) value will be used in multilibs. This
+# little trick also affects CPPFLAGS, CXXFLAGS, and LDFLAGS. And as a side
+# effect, CXXFLAGS is no longer automagically subst'd, so we have to do
+# that ourselves. Un-preciousing AC_PROG_CC also affects CC and CFLAGS.
+#
+# -fno-builtin must be present here so that a non-conflicting form of
+# std::exit can be guessed by AC_PROG_CXX, and used in later tests.
+
+m4_define([ac_cv_prog_CXX],[glibcxx_cv_prog_CXX])
+m4_rename([_AC_ARG_VAR_PRECIOUS],[glibcxx_PRECIOUS])
+m4_define([_AC_ARG_VAR_PRECIOUS],[])
+save_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="$CXXFLAGS -fno-builtin"
+AC_PROG_CC
+AC_PROG_CXX
+CXXFLAGS="$save_CXXFLAGS"
+m4_rename_force([glibcxx_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
+AC_SUBST(CFLAGS)
+AC_SUBST(CXXFLAGS)
+
+# Runs configure.host, and assorted other critical bits. Sets
# up critical shell variables.
GLIBCXX_CONFIGURE
# Enable compiler support that doesn't require linking.
GLIBCXX_ENABLE_SJLJ_EXCEPTIONS
GLIBCXX_ENABLE_PCH($is_hosted)
-GLIBCXX_ENABLE_ATOMIC_BUILTINS
GLIBCXX_ENABLE_THREADS
+GLIBCXX_ENABLE_ATOMIC_BUILTINS
+GLIBCXX_ENABLE_DECIMAL_FLOAT
-# Checks for compiler support that don't require linking.
+# Checks for compiler support that doesn't require linking.
GLIBCXX_CHECK_COMPILER_FEATURES
-GLIBCXX_CHECK_STANDARD_LAYOUT
-# Enable all the variable C++ runtime options that doesn't require linking.
+# Enable all the variable C++ runtime options that don't require linking.
GLIBCXX_ENABLE_CSTDIO
GLIBCXX_ENABLE_CLOCALE
GLIBCXX_ENABLE_ALLOCATOR
GLIBCXX_ENABLE_CXX_FLAGS
GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no])
-# Checks for operating systems support that don't require linking.
+# Checks for operating systems support that doesn't require linking.
GLIBCXX_CHECK_SYSTEM_ERROR
# For the streamoff typedef.
# For common values of EOF, SEEK_CUR, SEEK_END.
GLIBCXX_CHECK_STDIO_MACROS
+# For gettimeofday support.
+GLIBCXX_CHECK_GETTIMEOFDAY
+
+# For clock_gettime, nanosleep and sched_yield support.
+# NB: The default is [no], because otherwise it requires linking.
+GLIBCXX_ENABLE_LIBSTDCXX_TIME([no])
+
+# For gthread support
+GLIBCXX_CHECK_GTHREADS
+
AC_LC_MESSAGES
# Check for available headers.
GLIBCXX_CHECK_LINKER_FEATURES
GLIBCXX_CHECK_MATH_SUPPORT
- GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
- GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
GLIBCXX_CHECK_STDLIB_SUPPORT
- # For dev/random and dev/urandom for TR1.
+ # For /dev/random and /dev/urandom for TR1.
GLIBCXX_CHECK_RANDOM_TR1
- # For clock_gettime support.
- GLIBCXX_CHECK_CLOCK_GETTIME
-
- # For gettimeofday support.
- GLIBCXX_CHECK_GETTIMEOFDAY
-
# For TLS support.
GCC_CHECK_TLS
- # For _Unwind_GetIPInfo.
- GCC_CHECK_UNWIND_GETIPINFO
-
# For iconv support.
AM_ICONV
fi
# Construct crosses by hand, eliminating bits that need ld...
- # GLIBCXX_CHECK_BUILTIN_MATH_SUPPORT
# GLIBCXX_CHECK_MATH_SUPPORT
# First, test for "known" system libraries. We may be using newlib even
AC_DEFINE(HAVE_ATAN2F)
AC_DEFINE(HAVE_ATANF)
AC_DEFINE(HAVE_CEILF)
- AC_DEFINE(HAVE_COPYSIGN)
- AC_DEFINE(HAVE_COPYSIGNF)
AC_DEFINE(HAVE_COSF)
AC_DEFINE(HAVE_COSHF)
AC_DEFINE(HAVE_EXPF)
AC_DEFINE(HAVE_TANF)
AC_DEFINE(HAVE_TANHF)
- AC_DEFINE(HAVE_S_ISREG)
- AC_DEFINE(HAVE_S_IFREG)
-
AC_DEFINE(HAVE_ICONV)
else
GLIBCXX_CROSSCONFIG
AC_DEFINE(HAVE_ATAN2L)
AC_DEFINE(HAVE_ATANL)
AC_DEFINE(HAVE_CEILL)
- AC_DEFINE(HAVE_COPYSIGNL)
AC_DEFINE(HAVE_COSL)
AC_DEFINE(HAVE_COSHL)
AC_DEFINE(HAVE_EXPL)
AC_DEFINE(HAVE_TANL)
AC_DEFINE(HAVE_TANHL)
fi
-
- # Assume we have _Unwind_GetIPInfo for cross-compiles.
- AC_DEFINE(HAVE_GETIPINFO)
fi
+# Check for _Unwind_GetIPInfo.
+GCC_CHECK_UNWIND_GETIPINFO
+
+
GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])])
GCC_HEADER_STDINT(include/gstdint.h)
# Determine cross-compile flags and AM_CONDITIONALs.
#AC_SUBST(GLIBCXX_IS_NATIVE)
#AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes)
-# from GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT:
-#AM_CONDITIONAL(GLIBCXX_BUILD_LIBMATH, test $need_libmath = yes)
GLIBCXX_EVALUATE_CONDITIONALS
AC_CACHE_SAVE
dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros,
dnl which can all be called multiple times as needed, plus one (different)
dnl AC_OUTPUT macro. This one lists the files to be created:
-AC_CONFIG_FILES( \
- Makefile \
- AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ])
- )
+AC_CONFIG_FILES(Makefile)
AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags])
-dnl These commands are run at the end of config.status:
-AC_CONFIG_COMMANDS([default],
-[if test -n "$CONFIG_FILES"; then
- # Multilibs need MULTISUBDIR defined correctly in certain makefiles so
- # that multilib installs will end up installed in the correct place.
- # The testsuite needs it for multilib-aware ABI baseline files.
- # To work around this not being passed down from config-ml.in ->
- # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
- # append it here. Only modify Makefiles that have just been created.
- #
- # Also, get rid of this simulated-VPATH thing that automake does.
- cat > vpsed << \_EOF
+# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
+# that multilib installs will end up installed in the correct place.
+# The testsuite needs it for multilib-aware ABI baseline files.
+# To work around this not being passed down from config-ml.in ->
+# srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
+# append it here. Only modify Makefiles that have just been created.
+#
+# Also, get rid of this simulated-VPATH thing that automake does.
+AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]),
+ [cat > vpsed$$ << \_EOF
s!`test -f '$<' || echo '$(srcdir)/'`!!
_EOF
- for i in $SUBDIRS; do
- case $CONFIG_FILES in
- *${i}/Makefile*)
- #echo "Adding MULTISUBDIR to $i/Makefile"
- sed -f vpsed $i/Makefile > tmp
- grep '^MULTISUBDIR =' Makefile >> tmp
- mv tmp $i/Makefile
- ;;
- esac
- done
- rm vpsed
- fi
- (cd include && ${MAKE-make})
-],
-[
-# Variables needed in config.status (file generation) which aren't already
-# passed by autoconf.
-SUBDIRS="$SUBDIRS"
+ sed -f vpsed$$ $ac_file > tmp$$
+ mv tmp$$ $ac_file
+ rm vpsed$$
+ echo 'MULTISUBDIR =' >> $ac_file
+ ml_norecursion=yes
+ . ${multi_basedir}/config-ml.in
+ AS_UNSET([ml_norecursion])
])
+AC_CONFIG_COMMANDS([generate-headers],
+ [(cd include && ${MAKE-make} pch_build= )])
+
dnl And this actually makes things happen:
AC_OUTPUT
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