AC_PREREQ(2.13)
AC_INIT(src/ios.cc)
-# 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
- toplevel_srcdir="\${top_srcdir}/.."
- auxdir="${srcdir}/.."
- else
- if test "${with_target_subdir}" != "."; then
- toplevel_srcdir="\${top_srcdir}/${with_multisrctop}../.."
- auxdir="${srcdir}/${with_multisrctop}../.."
- else
- toplevel_srcdir="\${top_srcdir}/${with_multisrctop}.."
- auxdir="${srcdir}/${with_multisrctop}.."
- fi
- fi
-else
- toplevel_srcdir="\${top_srcdir}/.."
- auxdir="${srcdir}/.."
-fi
-AC_CONFIG_AUX_DIR($auxdir)
-AC_SUBST(toplevel_srcdir)
-
-dnl This is here just to satisfy automake.
-ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
-
-# Gets and sets build, host, target, *_vendor, *_cpu, *_os, etc.
+PACKAGE=libstdc++
+AC_SUBST(PACKAGE)
+# For typical GNU versioning info, format is MAJOR.MINOR.MICRO
+release_VERSION=3.1.0
+AC_SUBST(release_VERSION)
+# For libtool versioning info, format is CURRENT:REVISION:AGE
+libtool_VERSION=4:0:0
+AC_SUBST(libtool_VERSION)
+
+# Gets build, host, target, *_vendor, *_cpu, *_os, etc.
+# AC 2.50 sets target_alias iff the user specified --target, but we use it
+# everywhere, so we set it here just to be sure.
AC_CANONICAL_SYSTEM
+target_alias=${target_alias-$target}
+AC_SUBST(target_alias)
-# 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])
+AM_INIT_AUTOMAKE($PACKAGE, $release_VERSION)
+AM_CONFIG_HEADER(config.h)
-# Runs configure.host and configure.target. Have to run this before
-# the GLIBCPP_ENABLE_* macros below.
+# Runs configure.host and configure.target, as well as finds CC, CXX
+# and assorted other critical bits. Have to run this before the
+# GLIBCPP_ENABLE_* macros below.
GLIBCPP_CONFIGURE(.)
AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL
AC_SUBST(enable_shared)
AC_SUBST(enable_static)
-GLIBCPP_CHECK_GNU_MAKE
- if test "x$_cv_gnu_make_command" = "x"; then
- AC_MSG_ERROR([GNU make not found. Please install it or correct your path.])
- fi
-AM_CONFIG_HEADER(config.h)
# Check for c++ or library specific bits that don't require linking.
-GLIBCPP_CHECK_COMPILER_VERSION
+#GLIBCPP_CHECK_COMPILER_VERSION
+GLIBCPP_CHECK_GNU_MAKE
-# Enable all the crazy c++ stuff. C_MBCHAR must come early.
+# Enable all the variable C++ stuff. C_MBCHAR must come early.
GLIBCPP_ENABLE_DEBUG($USE_MAINTAINER_MODE)
GLIBCPP_ENABLE_CSTDIO
GLIBCPP_ENABLE_CLOCALE
GLIBCPP_ENABLE_THREADS
GLIBCPP_ENABLE_CXX_FLAGS([none])
GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
+GLIBCPP_ENABLE_CONCEPT_CHECKS
+
-if test -n "$with_cross_host"; then
+if test -n "$with_cross_host" || test x"$build" != x"$host"; then
- # We are being configured with a cross compiler. AC_REPLACE_FUNCS
- # may not work correctly, because the compiler may not be able to
- # link executables.
- xcompiling=1
- NATIVE=no
+ # This lets us hard-code the functionality we know
+ # we'll have in the cross target environment. "Let" is a
+ # sugar-coated word placed on an especially dull and tedious hack, actually.
+ # Here's why GLIBCPP_CHECK_MATH_SUPPORT, and other autoconf macros
+ # that involve linking can't be used:
+ # "cannot open sim-crt0.o"
+ # "cannot open crt0.o"
+ # etc. All this is because there currently exists no unified,
+ # consistent way for top level CC information to be passed down
+ # to target directories: newlib includes, newlib linking info,
+ # libgloss versus newlib crt0.o, etc. When all of this is done, all
+ # of this hokey, excessive AC_DEFINE junk for crosses can be removed.
+
+ # We are being configured with some form of cross compiler.
+ GLIBCPP_IS_CROSS_COMPILING=1
# If Canadian cross, then don't pick up tools from the build
# directory.
- if test x"$build" != x"$with_cross_host" && x"$build" != x"$target"; then
+ if test -n "$with_cross_host" && test x"$build" != x"$with_cross_host"; then
CANADIAN=yes
- NULL_TARGET=yes
else
CANADIAN=no
- NULL_TARGET=no
fi
+ # Construct crosses by hand, eliminating bits that need ld...
+ # GLIBCPP_CHECK_COMPILER_FEATURES
+ # GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
+ # GLIBCPP_CHECK_MATH_SUPPORT
+
case "$target_alias" in
*-linux*)
- # Construct linux crosses by hand, eliminating bits that need ld...
- # Check for available headers.
- AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \
- machine/endian.h machine/param.h sys/machine.h fp.h locale.h \
- float.h inttypes.h])
-
- # GLIBCPP_CHECK_COMPILER_FEATURES
- SECTION_FLAGS='-ffunction-sections -fdata-sections'
- AC_SUBST(SECTION_FLAGS)
- GLIBCPP_CHECK_LINKER_FEATURES
- # GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
- # GLIBCPP_CHECK_MATH_SUPPORT
- AC_DEFINE(HAVE_ACOSF)
- AC_DEFINE(HAVE_ASINF)
- AC_DEFINE(HAVE_ATAN2F)
- AC_DEFINE(HAVE_ATANF)
- AC_DEFINE(HAVE_CEILF)
- AC_DEFINE(HAVE_COPYSIGN)
- AC_DEFINE(HAVE_COPYSIGNF)
- AC_DEFINE(HAVE_COSF)
- AC_DEFINE(HAVE_COSHF)
- AC_DEFINE(HAVE_EXPF)
- AC_DEFINE(HAVE_FABSF)
- AC_DEFINE(HAVE_FINITE)
- AC_DEFINE(HAVE_FINITEF)
- AC_DEFINE(HAVE_FLOORF)
- AC_DEFINE(HAVE_FMODF)
- AC_DEFINE(HAVE_FREXPF)
- AC_DEFINE(HAVE_ISINF)
- AC_DEFINE(HAVE_ISINFF)
- AC_DEFINE(HAVE_ISNAN)
- AC_DEFINE(HAVE_ISNANF)
- AC_DEFINE(HAVE_LDEXPF)
- AC_DEFINE(HAVE_LOG10F)
- AC_DEFINE(HAVE_LOGF)
- AC_DEFINE(HAVE_MODFF)
- AC_DEFINE(HAVE_POWF)
- AC_DEFINE(HAVE_SINCOS)
- AC_DEFINE(HAVE_SINCOSF)
- AC_DEFINE(HAVE_SINF)
- AC_DEFINE(HAVE_SINHF)
- AC_DEFINE(HAVE_SQRTF)
- AC_DEFINE(HAVE_TANF)
- AC_DEFINE(HAVE_TANHF)
-
- # At some point, we should differentiate between architectures
- # like x86, which have long double versions, and alpha/powerpc/etc.,
- # which don't. For the time being, punt.
- if test x"long_double_math_on_this_cpu" = x"yes"; then
- AC_DEFINE(HAVE_ACOSL)
- AC_DEFINE(HAVE_ASINL)
- AC_DEFINE(HAVE_ATAN2L)
- AC_DEFINE(HAVE_ATANL)
- AC_DEFINE(HAVE_CEILL)
- AC_DEFINE(HAVE_COPYSIGNL)
- AC_DEFINE(HAVE_COSL)
- AC_DEFINE(HAVE_COSHL)
- AC_DEFINE(HAVE_EXPL)
- AC_DEFINE(HAVE_FABSL)
- AC_DEFINE(HAVE_FINITEL)
- AC_DEFINE(HAVE_FLOORL)
- AC_DEFINE(HAVE_FMODL)
- AC_DEFINE(HAVE_FREXPL)
- AC_DEFINE(HAVE_ISINFL)
- AC_DEFINE(HAVE_ISNANL)
- AC_DEFINE(HAVE_LDEXPL)
- AC_DEFINE(HAVE_LOG10L)
- AC_DEFINE(HAVE_LOGL)
- AC_DEFINE(HAVE_MODFL)
- AC_DEFINE(HAVE_POWL)
- AC_DEFINE(HAVE_SINCOSL)
- AC_DEFINE(HAVE_SINL)
- AC_DEFINE(HAVE_SINHL)
- AC_DEFINE(HAVE_SQRTL)
- AC_DEFINE(HAVE_TANL)
- AC_DEFINE(HAVE_TANHL)
- fi
- GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
- GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT
- GLIBCPP_CHECK_WCHAR_T_SUPPORT
- os_include_dir="config/os/gnu-linux"
- # GLIBCPP_CHECK_STDLIB_SUPPORT
- AC_DEFINE(HAVE_STRTOF)
- AC_DEFINE(HAVE_STRTOLD)
- # AC_FUNC_MMAP
- AC_DEFINE(HAVE_MMAP)
- ;;
+ # Check for available headers.
+ AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \
+ machine/endian.h machine/param.h sys/machine.h sys/types.h \
+ fp.h locale.h float.h inttypes.h])
+ SECTION_FLAGS='-ffunction-sections -fdata-sections'
+ AC_SUBST(SECTION_FLAGS)
+ GLIBCPP_CHECK_LINKER_FEATURES
+ GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
+ GLIBCPP_CHECK_WCHAR_T_SUPPORT
+ os_include_dir="config/os/gnu-linux"
+ AC_DEFINE(HAVE_COPYSIGN)
+ AC_DEFINE(HAVE_COPYSIGNF)
+ AC_DEFINE(HAVE_FINITEF)
+ AC_DEFINE(HAVE_FREXPF)
+ AC_DEFINE(HAVE_HYPOTF)
+ AC_DEFINE(HAVE_SINCOS)
+ AC_DEFINE(HAVE_SINCOSF)
+ if test x"long_double_math_on_this_cpu" = x"yes"; then
+ AC_DEFINE(HAVE_HYPOTL)
+ fi
+ ;;
+ *-hpux*)
+ # Check for available headers.
+ AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \
+ machine/endian.h machine/param.h sys/machine.h sys/types.h \
+ fp.h locale.h float.h inttypes.h])
+ SECTION_FLAGS='-ffunction-sections -fdata-sections'
+ AC_SUBST(SECTION_FLAGS)
+ GLIBCPP_CHECK_LINKER_FEATURES
+ GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
+ GLIBCPP_CHECK_WCHAR_T_SUPPORT
+ os_include_dir="config/os/hpux"
+ AC_DEFINE(HAVE_COPYSIGN)
+ AC_DEFINE(HAVE_COPYSIGNF)
+ AC_DEFINE(HAVE_FINITEF)
+ AC_DEFINE(HAVE_FREXPF)
+ AC_DEFINE(HAVE_HYPOT)
+ AC_DEFINE(HAVE_SINCOS)
+ AC_DEFINE(HAVE_SINCOSF)
+ ;;
+ *-netbsd*)
+ # Check for available headers.
+ AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \
+ machine/endian.h machine/param.h sys/machine.h sys/types.h \
+ fp.h locale.h float.h inttypes.h])
+ SECTION_FLAGS='-ffunction-sections -fdata-sections'
+ AC_SUBST(SECTION_FLAGS)
+ GLIBCPP_CHECK_LINKER_FEATURES
+ GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
+ GLIBCPP_CHECK_WCHAR_T_SUPPORT
+ os_include_dir="config/os/bsd/netbsd"
+ AC_DEFINE(HAVE_COPYSIGN)
+ AC_DEFINE(HAVE_COPYSIGNF)
+ AC_DEFINE(HAVE_FINITEF)
+ AC_DEFINE(HAVE_FREXPF)
+ AC_DEFINE(HAVE_HYPOTF)
+ ;;
*)
- # We assume newlib. This lets us hard-code the functions we know
- # we'll have.
- AC_DEFINE(HAVE_FINITE)
- AC_DEFINE(HAVE_ISNAN)
- AC_DEFINE(HAVE_ISNANF)
- AC_DEFINE(HAVE_ISINF)
- AC_DEFINE(HAVE_ISINFF)
-
- os_include_dir="config/os/newlib"
-
- AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX)
- AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX)
- # need to check for faster f versions of math functions, ie sinf?
- ;;
+ os_include_dir="config/os/newlib"
+ AC_DEFINE(HAVE_HYPOT)
+ ;;
esac
+
+ # GLIBCPP_CHECK_STDLIB_SUPPORT
+ AC_DEFINE(HAVE_STRTOF)
+ AC_DEFINE(HAVE_STRTOLD)
+ # AC_FUNC_MMAP
+ AC_DEFINE(HAVE_MMAP)
+
+ AC_DEFINE(HAVE_ACOSF)
+ AC_DEFINE(HAVE_ASINF)
+ AC_DEFINE(HAVE_ATAN2F)
+ AC_DEFINE(HAVE_ATANF)
+ AC_DEFINE(HAVE_CEILF)
+ AC_DEFINE(HAVE_COPYSIGN)
+ AC_DEFINE(HAVE_COPYSIGNF)
+ AC_DEFINE(HAVE_COSF)
+ AC_DEFINE(HAVE_COSHF)
+ AC_DEFINE(HAVE_EXPF)
+ AC_DEFINE(HAVE_FABSF)
+ AC_DEFINE(HAVE_FINITE)
+ AC_DEFINE(HAVE_FINITEF)
+ AC_DEFINE(HAVE_FLOORF)
+ AC_DEFINE(HAVE_FMODF)
+ AC_DEFINE(HAVE_FREXPF)
+ AC_DEFINE(HAVE_ISINF)
+ AC_DEFINE(HAVE_ISINFF)
+ AC_DEFINE(HAVE_ISNAN)
+ AC_DEFINE(HAVE_ISNANF)
+ AC_DEFINE(HAVE_LDEXPF)
+ AC_DEFINE(HAVE_LOG10F)
+ AC_DEFINE(HAVE_LOGF)
+ AC_DEFINE(HAVE_MODFF)
+ AC_DEFINE(HAVE_POWF)
+ AC_DEFINE(HAVE_SINF)
+ AC_DEFINE(HAVE_SINHF)
+ AC_DEFINE(HAVE_SQRTF)
+ AC_DEFINE(HAVE_TANF)
+ AC_DEFINE(HAVE_TANHF)
+
+ # At some point, we should differentiate between architectures
+ # like x86, which have long double versions, and alpha/powerpc/etc.,
+ # which don't. For the time being, punt.
+ if test x"long_double_math_on_this_cpu" = x"yes"; then
+ AC_DEFINE(HAVE_ACOSL)
+ AC_DEFINE(HAVE_ASINL)
+ AC_DEFINE(HAVE_ATAN2L)
+ AC_DEFINE(HAVE_ATANL)
+ AC_DEFINE(HAVE_CEILL)
+ AC_DEFINE(HAVE_COPYSIGNL)
+ AC_DEFINE(HAVE_COSL)
+ AC_DEFINE(HAVE_COSHL)
+ AC_DEFINE(HAVE_EXPL)
+ AC_DEFINE(HAVE_FABSL)
+ AC_DEFINE(HAVE_FINITEL)
+ AC_DEFINE(HAVE_FLOORL)
+ AC_DEFINE(HAVE_FMODL)
+ AC_DEFINE(HAVE_FREXPL)
+ AC_DEFINE(HAVE_ISINFL)
+ AC_DEFINE(HAVE_ISNANL)
+ AC_DEFINE(HAVE_LDEXPL)
+ AC_DEFINE(HAVE_LOG10L)
+ AC_DEFINE(HAVE_LOGL)
+ AC_DEFINE(HAVE_MODFL)
+ AC_DEFINE(HAVE_POWL)
+ AC_DEFINE(HAVE_SINCOSL)
+ AC_DEFINE(HAVE_SINL)
+ AC_DEFINE(HAVE_SINHL)
+ AC_DEFINE(HAVE_SQRTL)
+ AC_DEFINE(HAVE_TANL)
+ AC_DEFINE(HAVE_TANHL)
+ fi
else
# We are being configured natively. We can do more elaborate tests
# that include AC_TRY_COMPILE now, as the linker is assumed to be
# working.
- xcompiling=0
- NATIVE=yes
+ GLIBCPP_IS_CROSS_COMPILING=0
CANADIAN=no
- NULL_TARGET=no
# Check for available headers.
AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \
GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
GLIBCPP_CHECK_MATH_SUPPORT
GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
- GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT
GLIBCPP_CHECK_WCHAR_T_SUPPORT
GLIBCPP_CHECK_STDLIB_SUPPORT
+ AC_LC_MESSAGES
AC_TRY_COMPILE([
-#include <setjmp.h>
-], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
-[AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])])
+ #include <setjmp.h>
+ ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
+ [AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
+ ])
AC_FUNC_MMAP
+
+ # Establish limits on memory usage during 'make check'
+ GLIBCPP_CONFIGURE_TESTSUITE
fi
-# Now that ctype is determined for all possible targets, we can do this...
-AC_LINK_FILES($os_include_dir/bits/ctype_base.h, \
-include/bits/ctype_base.h)
-AC_LINK_FILES($os_include_dir/bits/ctype_inline.h, \
-include/bits/ctype_inline.h)
-AC_LINK_FILES($os_include_dir/bits/ctype_noninline.h, \
-include/bits/ctype_noninline.h)
-AC_LINK_FILES($ATOMICITYH/bits/atomicity.h, include/bits/atomicity.h)
-
-AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
-AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
+
+# Propagate the target-specific source directories through the build chain.
+OS_INC_SRCDIR=$os_include_dir/bits
+ATOMICITY_INC_SRCDIR=$ATOMICITYH/bits
+CPU_LIMITS_INC_SRCDIR=$CPULIMITSH/bits
+AC_SUBST(OS_INC_SRCDIR)
+AC_SUBST(ATOMICITY_INC_SRCDIR)
+AC_SUBST(CPU_LIMITS_INC_SRCDIR)
+
+# Set up cross-compile flags
+AC_SUBST(GLIBCPP_IS_CROSS_COMPILING)
AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
AC_CACHE_SAVE
-AC_LC_MESSAGES
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
multilib_arg=
fi
-
-# Generate the various Makefiles, include files, and scripts.
-
# Needed so that g++ can find the correct include subdir automatically.
INTERFACE=v3
GLIBCPP_EXPORT_INCLUDES
GLIBCPP_EXPORT_FLAGS
-# This should be done by mkincludedir, but hack around it now.
-blddir=`pwd`
-echo "checking for $blddir/include"
-
-if test ! -d "$blddir/include"; then
- mkdir "$blddir/include"
+if ${CONFIG_SHELL-/bin/sh} ./libtool --tag CXX --features |
+ grep "enable shared" > /dev/null; then
+ LIBSUPCXX_PICFLAGS=-prefer-pic
+else
+ LIBSUPCXX_PICFLAGS=
fi
+AC_SUBST(LIBSUPCXX_PICFLAGS)
+# Generate the various Makefiles, include files, and scripts.
# NB: Multilibs need MULTISUBDIR defined correctly in src/Makefile.am
# and libsupc++/Makefile.am so that multilib installs will end up
# installed in the correct place. To work around this not being passed
# down from config-ml.in -> top_srcdir/Makefile.am ->
# top_srcdir/{src,libsupc++}/Makefile.am, manually append it here.
-AC_OUTPUT(tests_flags mkcheck Makefile src/Makefile libmath/Makefile libio/Makefile libsupc++/Makefile testsuite/Makefile,
+AC_OUTPUT(Makefile \
+ include/Makefile src/Makefile \
+ libmath/Makefile libio/Makefile libsupc++/Makefile \
+ po/Makefile testsuite/Makefile mkcheck testsuite_flags,
[if test -n "$CONFIG_FILES"; then
ac_file=Makefile . ${glibcpp_basedir}/../config-ml.in
grep '^MULTISUBDIR =' Makefile >> src/Makefile
grep '^MULTISUBDIR =' Makefile >> libsupc++/Makefile
fi
-chmod +x tests_flags
chmod +x mkcheck
+chmod +x testsuite_flags
],
srcdir=${srcdir}
host=${host}
)
-# Generate bits/c++config.h
-# NB: This must be the first generated file as others include it. . .
-$srcdir/mkc++config $blddir $srcdir
-
-# Generate bits/std_limits.h and src/limitsMEMBERS.cc
-if test ! -f stamp-limits; then
- $srcdir/mknumeric_limits $blddir $srcdir $xcompiling
- if test ! -f include/bits/std_limits.h; then
- echo "mknumeric_limits failed to execute properly: exiting"
- exit 1
- else
- touch stamp-limits
- fi
-fi
-
-
# Sanity checking & User-visible messages.
# Checks down here, otherwise they get scrolled off before
# the user will notice.
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