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# Process this file with autoconf to produce a configure script, like so:
# aclocal -I m4, autoconf, autoheader, automake
AC_PREREQ(2.13)
AC_INIT(src/complex.cc)
AC_CONFIG_AUX_DIR(..)
# Gets and sets build, host, target, *_vendor, *_cpu, *_os, etc.
AC_CANONICAL_SYSTEM
# 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])
GLIBCPP_CONFIGURE(.)
AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL
AM_CONFIG_HEADER(config.h)
# Check for c++ or library specific bits that don't require linking.
GLIBCPP_CHECK_COMPILER_VERSION
GLIBCPP_CHECK_CPU
# Enable all the crazy c++ stuff.
GLIBCPP_ENABLE_DEBUG
GLIBCPP_ENABLE_CSTDIO
GLIBCPP_ENABLE_LONG_LONG
GLIBCPP_ENABLE_THREADS
#GLIBCPP_ENABLE_NAMESPACES(yes)
#GLIBCPP_ENABLE_RELIBGCC([../..])
if test -n "$with_cross_host"; then
# We are being configured with a cross compiler. AC_REPLACE_FUNCS
# may not work correctly, because the compiler may not be able to
# link executables.
xcompiling=1
NATIVE=no
# If Canadian cross, then don't pick up tools from the build
# directory.
if test "$build" != "$with_cross_host"; then
CANADIAN=yes
NULL_TARGET=yes
else
CANADIAN=no
NULL_TARGET=no
fi
case "$target_alias" in
*-wince-*)
# Configure for Microsoft Windows CE, or whatever they are
# currently calling it.
AC_DEFINE(HAVE_FLOAT_H)
AC_DEFINE(HAVE__FINITE)
AC_DEFINE(HAVE__ISNAN)
AC_DEFINE(HAVE__COPYSIGN)
AC_DEFINE(HAVE__FPCLASS)
AC_DEFINE(HAVE_MODF)
ctype_include_dir="config/wince"
AC_SUBST(ctype_include_dir)
AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T)
AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX)
AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX)
;;
*)
# 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)
ctype_include_dir="config/newlib"
AC_SUBST(ctype_include_dir)
AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T)
AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX)
AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX)
# need to ceck for faster f versions of math functions, ie sinf?
;;
esac
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
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 \
machine/param.h sys/machine.h fp.h locale.h float.h inttypes.h])
GLIBCPP_CHECK_COMPLEX_SUPPORT
GLIBCPP_CHECK_COMPLEX_FLOAT_SUPPORT
GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
GLIBCPP_CHECK_MATH_SUPPORT
GLIBCPP_CHECK_WCHAR_T_SUPPORT
GLIBCPP_CHECK_CTYPE
AC_FUNC_MMAP
fi
AM_CONDITIONAL(CANADIAN, test "$CANADIAN" = yes)
AM_CONDITIONAL(NULL_TARGET, test "$NULL_TARGET" = yes)
AM_CONDITIONAL(NATIVE, test "$NATIVE" = yes || test "$NULL_TARGET" = yes)
AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
AC_LC_MESSAGES
# Sanity checking & User-visible messages.
# Checks down here, otherwise they get scrolled off before
# the user will notice.
if test "$enable_namespaces" = "yes" && test "$enable_libgcc_rebuild" = "no"
then
AC_MSG_WARN([libgcc.a will not match mangled symbols unless it is rebuilt])
fi
if test "$enable_namespaces" = "no" && test "$enable_libgcc_rebuild" != "no"
then
# Other things besides namespaces can make this true as well, but none
# of them are done automatically... yet
AC_MSG_WARN([no point in rebuilding libgcc.a if namespaces aren't used])
fi
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
# Generate the various Makefiles, include files, and scripts.
# NB: Multilibs need MULTISUBDIR defined correctly in src/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/Makefile.am, manually
# append it here.
AC_OUTPUT(mkcheck Makefile src/Makefile math/Makefile libio/Makefile,
[if test -n "$CONFIG_FILES"; then
ac_file=Makefile . ${glibcpp_basedir}/../config-ml.in
grep '^MULTISUBDIR =' Makefile >> src/Makefile
fi],
srcdir=${srcdir}
host=${host}
target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${multilib_arg} ${ac_configure_args}"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
glibcpp_basedir=${glibcpp_basedir}
CC="${CC}"
CXX="${CXX}"
)
blddir=`pwd`
# Generate mkcheck having execute privs
AC_OUTPUT_COMMANDS([chmod +x $blddir/mkcheck])
# Generate bits/c++config.h
# NB: This must be the first generated file as others include it. . .
AC_OUTPUT_COMMANDS([$srcdir/mkc++config $blddir $srcdir])
# Generate bits/std_limits.h and src/limitsMEMBERS.cc
AC_OUTPUT_COMMANDS([$srcdir/mknumeric_limits $blddir $srcdir $xcompiling])
# Generate bits/c++threads.h
AC_OUTPUT_COMMANDS([cp $srcdir/config/$THREADH $blddir/bits/c++threads.h])
# Generate bits/c++io.h and src/c++io.cc
AC_OUTPUT_COMMANDS([cp $srcdir/config/$CSTDIO_H $blddir/bits/c++io.h])
AC_OUTPUT_COMMANDS([cp $srcdir/config/$CSTDIO_CC $blddir/src/c++io.cc])
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