# Process this file with autoconf to produce a configure script, like so: # aclocal, 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 GLIBCPP_CHECK_GNU_MAKE if test "x$_cv_gnu_make_command" = "x"; then AC_MSG_ERROR([GNU make not found. Please install it or correct your path.]) fi AM_CONFIG_HEADER(config.h) # Check for c++ or library specific bits that don't require linking. GLIBCPP_CHECK_COMPILER_VERSION GLIBCPP_CHECK_CPU GLIBCPP_CHECK_OS AC_CACHE_SAVE # Enable all the crazy c++ stuff. GLIBCPP_ENABLE_DEBUG($USE_MAINTAINER_MODE) GLIBCPP_ENABLE_CSTDIO GLIBCPP_ENABLE_LONG_LONG(yes) GLIBCPP_ENABLE_SHADOW(no) GLIBCPP_ENABLE_THREADS GLIBCPP_ENABLE_ATOMICITY GLIBCPP_ENABLE_CXX_FLAGS([none]) 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/os/wince" AC_LINK_FILES($ctype_include_dir/bits/ctype_base.h, bits/ctype_base.h) AC_LINK_FILES($ctype_include_dir/bits/ctype_inline.h, \ bits/ctype_inline.h) AC_LINK_FILES($ctype_include_dir/bits/ctype_noninline.h, \ bits/ctype_noninline.h) AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T) AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX) AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX) ;; *) # We assume newlib. This lets us hard-code the functions we know # we'll have. AC_DEFINE(HAVE_FINITE) AC_DEFINE(HAVE_ISNAN) AC_DEFINE(HAVE_ISNANF) AC_DEFINE(HAVE_ISINF) AC_DEFINE(HAVE_ISINFF) ctype_include_dir="config/os/newlib" AC_LINK_FILES($ctype_include_dir/bits/ctype_base.h, bits/ctype_base.h) AC_LINK_FILES($ctype_include_dir/bits/ctype_inline.h, \ bits/ctype_inline.h) AC_LINK_FILES($ctype_include_dir/bits/ctype_noninline.h, \ bits/ctype_noninline.h) 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_COMPILER_FEATURES GLIBCPP_CHECK_LINKER_FEATURES GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT GLIBCPP_CHECK_MATH_SUPPORT GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT AC_CACHE_SAVE 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 "$with_cross_host") AC_LC_MESSAGES if test "${multilib}" = "yes"; then multilib_arg="--enable-multilib" else multilib_arg= fi # Generate the various Makefiles, include files, and scripts. # This helps subvert libstdcxx_interface, as calculated by devo/config.if # Needed so that g++ can find the correct include subdir automatically. INTERFACE=v3 # Check for the interface version number for specifying where header # files are installed, if a version number is provided. AC_MSG_CHECKING([for interface version number]) libstdcxx_interface=$INTERFACE AC_MSG_RESULT($libstdcxx_interface) AC_SUBST(libstdcxx_interface) # Process the option --with-gxx-include-dir= 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($gxx_include_dir) AC_SUBST(gxx_include_dir) AM_CONDITIONAL(GXX_INCLUDE_DIR, test x${gxx_include_dir} != xno) # 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 ], [ version_specific_libs=yes # 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_tmp=`grep version_string ${srcdir}/../gcc/version.c | awk '{print $6}'` gcc_num=`echo ${gcc_tmp} | sed 's/\"//g'` #gcc_date=`grep version_string ${srcdir}/../gcc/version.c | awk '{print $7}'` #gcc_version=$gcc_num-$gcc_date gcc_version=$gcc_num changequote([,])dnl AC_SUBST(gcc_version) ],version_specific_libs=no) AC_MSG_RESULT($version_specific_libs) if test x${version_specific_libs} = xyes; then AM_CONDITIONAL(VERSION_SPECIFIC_LIBS, test x${version_specific_libs} = xyes) AC_MSG_WARN(version specific directory is: $gcc_version) fi # Export all the include and flag information to makefiles. GLIBCPP_EXPORT_INCLUDES GLIBCPP_EXPORT_FLAGS # NB: Multilibs need MULTISUBDIR defined correctly in src/Makefile.am # so that multilib installs will end up installed in the correct # place. To work around this not being passed down from config-ml.in # -> top_srcdir/Makefile.am -> top_srcdir/src/Makefile.am, manually # append it here. AC_OUTPUT(mkcheck Makefile src/Makefile libmath/Makefile libio/Makefile libsupc++/Makefile, [if test -n "$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="${CXX}" ) blddir=`pwd` # Generate bits/c++config.h # NB: This must be the first generated file as others include it. . . AC_OUTPUT_COMMANDS([$srcdir/mkc++config $blddir $srcdir]) # Generate bits/std_limits.h and src/limitsMEMBERS.cc if test ! -f stamp-limits; then AC_OUTPUT_COMMANDS([$srcdir/mknumeric_limits $blddir $srcdir $xcompiling]) touch stamp-limits fi # Sanity checking & User-visible messages. # Checks down here, otherwise they get scrolled off before # the user will notice. # Trying to get more people to read documentation. Possibly remove # check and warn all the time. There is no "informational" AC_MSG_ # macro, so these are going to be printed even when --quiet/--silent # is given. if test ! -f stamp-sanity-warned; then touch stamp-sanity-warned echo "" echo "Please make certain that you read the installation information here:" echo " faster => ${srcdir}/docs/install.html" echo " slower => " echo "" echo "and the configuration information here:" echo " faster => ${srcdir}/docs/configopts.html" echo " slower => " echo "" echo "before proceeding with ${_cv_gnu_make_command}." echo "" fi