mirror of
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cde28f0da4
2000-05-01 Benjamin Kosnik <bkoz@haight.constant.com> * src/Makefile.am (AC_CXXFLAGS): Add CPUFLAGS here. * src/Makefile.in: Regenerate. * acinclude.m4 (GLIBCPP_ENABLE_DEBUG): Revert. From-SVN: r33593
897 lines
26 KiB
Plaintext
897 lines
26 KiB
Plaintext
dnl
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dnl Initialize configure bits.
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dnl
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dnl Define OPTLEVEL='-O2' if new inlining code present.
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dnl
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dnl GLIBCPP_CONFIGURE
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AC_DEFUN(GLIBCPP_CONFIGURE, [
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dnl Default to --enable-multilib
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AC_ARG_ENABLE(multilib,
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[ --enable-multilib build hella library versions (default)],
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[case "${enableval}" in
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yes) multilib=yes ;;
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no) multilib=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
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esac], [multilib=yes])dnl
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dnl We may get other options which we dont document:
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dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
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if test "[$]{srcdir}" = "."; then
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if test "[$]{with_target_subdir}" != "."; then
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glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
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else
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glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
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fi
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else
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glibcpp_basedir="[$]{srcdir}/$1"
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fi
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AC_SUBST(glibcpp_basedir)
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AC_CANONICAL_HOST
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AM_INIT_AUTOMAKE(libstdc++, 2.90.8)
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# FIXME: We temporarily define our own version of AC_PROG_CC. This is
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# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
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# are probably using a cross compiler, which will not be able to fully
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# link an executable. This should really be fixed in autoconf
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# itself.
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AC_DEFUN(LIB_AC_PROG_CC,
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[AC_BEFORE([$0], [AC_PROG_CPP])dnl
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dnl Fool anybody using AC_PROG_CC.
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AC_PROVIDE([AC_PROG_CC])
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AC_CHECK_PROG(CC, gcc, gcc)
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if test -z "$CC"; then
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AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
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test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
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fi
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AC_PROG_CC_GNU
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if test $ac_cv_prog_gcc = yes; then
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GCC=yes
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dnl Check whether -g works, even if CFLAGS is set, in case the package
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dnl plays around with CFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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ac_test_CFLAGS="${CFLAGS+set}"
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ac_save_CFLAGS="$CFLAGS"
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CFLAGS=
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AC_PROG_CC_G
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if test "$ac_test_CFLAGS" = set; then
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CFLAGS="$ac_save_CFLAGS"
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elif test $ac_cv_prog_cc_g = yes; then
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CFLAGS="-g -O2"
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else
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CFLAGS="-O2"
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fi
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else
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GCC=
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test "${CFLAGS+set}" = set || CFLAGS="-g"
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fi
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])
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LIB_AC_PROG_CC
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# Likewise for AC_PROG_CXX.
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AC_DEFUN(LIB_AC_PROG_CXX,
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[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
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dnl Fool anybody using AC_PROG_CXX.
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AC_PROVIDE([AC_PROG_CXX])
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AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
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test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
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AC_PROG_CXX_GNU
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if test $ac_cv_prog_gxx = yes; then
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GXX=yes
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dnl Check whether -g works, even if CXXFLAGS is set, in case the package
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dnl plays around with CXXFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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ac_test_CXXFLAGS="${CXXFLAGS+set}"
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ac_save_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS=
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AC_PROG_CXX_G
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if test "$ac_test_CXXFLAGS" = set; then
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CXXFLAGS="$ac_save_CXXFLAGS"
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elif test $ac_cv_prog_cxx_g = yes; then
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CXXFLAGS="-g -O2"
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else
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CXXFLAGS="-O2"
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fi
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else
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GXX=
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test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
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fi
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])
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LIB_AC_PROG_CXX
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# AC_CHECK_TOOL does AC_REQUIRE (AC_CANONICAL_BUILD). If we dont
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# run it explicitly here, it will be run implicitly before
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# LIBGCJ_CONFIGURE, which doesn't work because that means that it will
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# be run before AC_CANONICAL_HOST.
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AC_CANONICAL_BUILD
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AC_CHECK_TOOL(AS, as)
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AC_CHECK_TOOL(AR, ar)
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AC_CHECK_TOOL(RANLIB, ranlib, :)
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AC_PROG_INSTALL
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AM_MAINTAINER_MODE
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# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
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# at least currently, we never actually build a program, so we never
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# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
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# fails, because we are probably configuring with a cross compiler
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# which cant create executables. So we include AC_EXEEXT to keep
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# automake happy, but we dont execute it, since we dont care about
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# the result.
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if false; then
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AC_EXEEXT
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fi
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# configure.host sets the following important variables
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# glibcpp_cflags - host specific C compiler flags
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# glibcpp_cxxflags - host specific C++ compiler flags
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glibcpp_cflags=
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glibcpp_cxxflags=
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. [$]{glibcpp_basedir}/configure.host
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case [$]{glibcpp_basedir} in
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/* | [A-Za-z]:[/\\]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
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*) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
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esac
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GLIBCPP_CFLAGS="[$]{glibcpp_cflags}"
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GLIBCPP_CXXFLAGS="[$]{glibcpp_cxxflags}"
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AC_SUBST(GLIBCPP_CFLAGS)
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AC_SUBST(GLIBCPP_CXXFLAGS)
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])
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dnl
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dnl Check to see if g++ can compile this library.
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dnl
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dnl Define OPTLEVEL='-O2' if new inlining code present.
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dnl
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dnl GLIBCPP_CHECK_COMPILER_VERSION
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AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
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AC_MSG_CHECKING([for g++ that will successfullly compile this code])
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AC_EGREP_CPP([ok], [
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
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ok
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#endif
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], gpp_satisfactory=yes, AC_MSG_ERROR("please upgrade to gcc-2.95 or above"))
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AC_MSG_RESULT($gpp_satisfactory)
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AC_MSG_CHECKING([for g++ that supports new inlining mechanism])
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AC_EGREP_CPP([ok], [
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 95)
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ok
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#endif
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], [OPTLEVEL='-O2'
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WERRORSUPPRESS=
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], [OPTLEVEL=
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WERRORSUPPRESS=-Wno-error
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])
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if test "$OPTLEVEL" = ""; then
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AC_MSG_RESULT(no)
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else
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AC_MSG_RESULT(yes)
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fi
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AC_SUBST(OPTLEVEL)
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AC_SUBST(WERRORSUPPRESS)
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])
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dnl
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dnl Check to see what builtin math functions are supported
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dnl
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dnl Define _GLIBCPP_HAS_BUILTIN_SINF if __builtin_sinf
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dnl Define _GLIBCPP_HAS_BUILTIN_COSF if __builtin_cosf
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dnl Define _GLIBCPP_HAS_BUILTIN_FABSF if __builtin_fabsf
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dnl Define _GLIBCPP_HAS_BUILTIN_SQRTF if __builtin_sqrtf
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dnl
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dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
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AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
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dnl Test for builtin math functions.
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AC_MSG_CHECKING([for __builtin_sinf])
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AC_TRY_COMPILE([#include <math.h>],
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[float foo(void) { __builtin_sinf(0.0); }],
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use_builtin_sinf=yes, use_builtin_sinf=no)
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AC_MSG_RESULT($use_builtin_sinf)
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if test $use_builtin_sinf = "yes"; then
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AC_DEFINE(_GLIBCPP_HAS_BUILTIN_SINF)
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fi
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AC_MSG_CHECKING([for __builtin_cosf])
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AC_TRY_COMPILE([#include <math.h>],
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[float foo(void) { __builtin_cosf(0.0); }],
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use_builtin_cosf=yes, use_builtin_cosf=no)
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AC_MSG_RESULT($use_builtin_cosf)
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if test $use_builtin_cosf = "yes"; then
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AC_DEFINE(_GLIBCPP_HAS_BUILTIN_COSF)
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fi
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AC_MSG_CHECKING([for __builtin_fabsf])
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AC_TRY_COMPILE([#include <math.h>],
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[float foo(void) { __builtin_fabsf(0.0); }],
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use_builtin_fabsf=yes, use_builtin_fabsf=no)
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AC_MSG_RESULT($use_builtin_fabsf)
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if test $use_builtin_fabsf = "yes"; then
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AC_DEFINE(_GLIBCPP_HAS_BUILTIN_FABSF)
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fi
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AC_MSG_CHECKING([for __builtin_sqrtf])
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AC_TRY_COMPILE([#include <math.h>],
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[float foo(void) { __builtin_sqrtf(0.0); }],
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use_builtin_sqrtf=yes, use_builtin_sqrtf=no)
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AC_MSG_RESULT($use_builtin_sqrtf)
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if test $use_builtin_sqrtf = "yes"; then
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AC_DEFINE(_GLIBCPP_HAS_BUILTIN_SQRTF)
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fi
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])
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dnl
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dnl Check to see what architecture we are compiling for. If it's
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dnl supported, use special hand-crafted routines to provide thread
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dnl primitives. Also, if architecture-specific flags are required for
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dnl compilation, add them here.
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dnl
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dnl Depending on what is found, select configure/cpu/*/bits/atomicity.h
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dnl If not found, select configure/cpu/generic/bits/atomicity.h
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dnl
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dnl GLIBCPP_CHECK_CPU
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AC_DEFUN(GLIBCPP_CHECK_CPU, [
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AC_MSG_CHECKING([for cpu primitives directory])
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CPUFLAGS=
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case "$target_cpu" in
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alpha*)
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cpu_include_dir="config/cpu/alpha"
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;;
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arm*)
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cpu_include_dir="config/cpu/arm"
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;;
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i486 | i586 | i686 | i786)
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cpu_include_dir="config/cpu/i386"
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;;
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powerpc | rs6000)
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cpu_include_dir="config/cpu/powerpc"
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CPUFLAGS='-mnew-mnemonics -Wa,-mppc -mpowerpc'
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;;
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sparc64 | ultrasparc)
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cpu_include_dir="config/cpu/sparc/sparc64"
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;;
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sparc*)
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cpu_include_dir="config/cpu/sparc/sparc32"
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;;
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*)
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cpu_include_dir="config/cpu/generic"
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;;
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esac
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AC_MSG_RESULT($cpu_include_dir)
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AC_SUBST(cpu_include_dir)
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AC_SUBST(CPUFLAGS)
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])
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dnl
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dnl Check to see what the underlying c library's interface to ctype looks
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dnl like. Bits of locale rely on things like isspace, toupper, etc. This
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dnl stuff makes sure the right bits from the clibrary get called.
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dnl
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dnl Depending on what is found, select various configure/*/bits/ctype_base.h
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dnl Depending on what is found, select various configure/*/ctype.cc
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dnl
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dnl GLIBCPP_CHECK_CTYPE
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AC_DEFUN(GLIBCPP_CHECK_CTYPE, [
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AC_CHECK_HEADER(ctype.h, [
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dnl If doesn't match any specified, go with defaults.
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ctype_default=yes
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dnl Test for <ctype> functionality -- gnu-linux
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AC_MSG_CHECKING([for gnu-linux <ctype>])
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AC_TRY_COMPILE([#include <ctype.h>],
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[int
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foo (int a)
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{ return _ISspace + _ISprint + _IScntrl + _ISupper + _ISlower + _ISalpha \
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+ _ISdigit + _ISpunct + _ISxdigit + _ISalnum + _ISgraph \
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+ __ctype_tolower[a] + __ctype_toupper[a] + __ctype_b[a];}], \
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ctype_linux=yes, ctype_linux=no)
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AC_MSG_RESULT($ctype_linux)
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if test $ctype_linux = "yes"; then
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ctype_include_dir="config/gnu-linux"
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ctype_default=no
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fi
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dnl Test for <ctype> functionality -- solaris 2.6 and 2.7
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if test $ctype_default = "yes"; then
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AC_MSG_CHECKING([for solaris 2.6 or 2.7 <ctype>])
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AC_TRY_COMPILE([#include <ctype.h>],
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[int
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foo (int a)
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{ return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \
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+ _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \
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+ __trans_lower[a] + __trans_upper[a] + __ctype_mask[a];}], \
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ctype_solaris=yes, ctype_solaris=no)
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AC_MSG_RESULT($ctype_solaris)
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if test $ctype_solaris = "yes"; then
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AC_MSG_CHECKING([ for version])
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([#include <ctype.h>],
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[typedef long* __to_type; __to_type const& _M_toupper = __trans_upper;],\
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ctype_solaris26=yes, ctype_solaris26=no)
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AC_LANG_C
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if test $ctype_solaris26 = "yes"; then
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ctype_include_dir="config/solaris/solaris2.6"
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AC_MSG_RESULT("solaris2.6")
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ctype_default=no
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else
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ctype_include_dir="config/solaris/solaris2.7"
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AC_MSG_RESULT("solaris2.7")
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ctype_default=no
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fi
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fi
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fi
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dnl Test for <ctype> functionality -- solaris 2.5.1
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if test $ctype_default = "yes"; then
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AC_MSG_CHECKING([for solaris 2.5.1 <ctype>])
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AC_TRY_COMPILE([#include <ctype.h>],
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[int
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foo (int a)
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{ return _U + _L + _N + _S + _P + _C + _X + _B \
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+ __ctype[a];}], \
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ctype_solaris25=yes, ctype_solaris25=no)
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AC_MSG_RESULT($ctype_solaris25)
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if test $ctype_solaris25 = "yes"; then
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ctype_include_dir="config/solaris/solaris2.5"
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ctype_default=no
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fi
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fi
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dnl Test for <ctype> functionality -- aix
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if test $ctype_default = "yes"; then
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AC_MSG_CHECKING([for aix <ctype>])
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AC_TRY_COMPILE([#include <ctype.h>],
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[int
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foo (int a)
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{ return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \
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+ _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \
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+ _VALC('a') + _IS('c', 0);}], \
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ctype_aix=yes, ctype_aix=no)
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AC_MSG_RESULT($ctype_aix)
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if test $ctype_aix = "yes"; then
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ctype_include_dir="config/aix"
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ctype_default=no
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fi
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fi
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dnl Test for <ctype> functionality -- newlib
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if test $ctype_default = "yes"; then
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AC_MSG_CHECKING([for newlib <ctype>])
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AC_TRY_COMPILE([#include <ctype.h>],
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[int
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foo (int a)
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{ return _U + _L + _N + _S + _P + _C + _X + _B \
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+ _ctype_[a];}], \
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ctype_newlib=yes, ctype_newlib=no)
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AC_MSG_RESULT($ctype_newlib)
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if test $ctype_newlib = "yes"; then
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ctype_include_dir="config/newlib"
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ctype_default=no
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fi
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fi
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if test $ctype_default = "yes"; then
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ctype_include_dir="config/generic"
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AC_MSG_WARN("Using default ctype headers.")
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fi
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AC_SUBST(ctype_include_dir)
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])
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])
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dnl
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dnl Check to see what the underlying c library or math library is like.
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dnl
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dnl Define HAVE_CARGF etc if "cargf" is found.
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dnl
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dnl GLIBCPP_CHECK_MATH_SUPPORT
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AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
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AC_CHECK_LIB(m, sin, libm="-lm")
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save_LIBS="$LIBS"
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LIBS="$LIBS $libm"
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dnl Check for complex versions of math functions of platform.
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AC_CHECK_HEADERS([complex.h])
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AC_REPLACE_MATHFUNCS(ccos ccosf ccosh ccoshf cexp cexpf c_log c_logf \
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clog10 clog10f cpow cpowf csin csinf csinh csinhf csqrt csqrtf \
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ctan ctanf ctanh ctanhf \
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carg cargf nan hypot hypotf atan2f expf copysignf)
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dnl We compile the long double complex functions only if the function
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dnl provides the non-complex long double functions.
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USE_LONG_DOUBLE=no
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AC_CHECK_FUNC(copysignl,
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USE_LONG_DOUBLE=yes
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AC_REPLACE_MATHFUNCS(ccoshl ccosl cexpl cpowl csinhl csinl \
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csqrtl ctanhl ctanl cargl hypotl signbitl c_logl clog10l))
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AC_SUBST(USE_LONG_DOUBLE)
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dnl Check to see if basic C math functions have faster float versions.
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AC_CHECK_FUNCS(modf isnan isnanf isnanl isinf isinff isinfl copysign \
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copysignl cosf coshf logf log10f powf sinf sinhf sqrtf tanf tanhf \
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strtof strtold fabsf sincos sincosf sincosl finite finite fqfinite \
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fpclass qfpclass)
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#Some runtimes have these functions with a preceding underscore. Please
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# keep this sync'd with the one above. And if you add any new symbol,
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# please add the corresponding block in the @BOTTOM@ section of
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# acconfig.h.
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AC_CHECK_FUNCS(_modf _isnan _isnanf _isnanl _isinf _isinff _isinfl _copysign \
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_copysignl _cosf _coshf _logf _log10f _powf _sinf _sinhf _sqrtf _tanf _tanhf \
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_strtof _strtold _fabsf _sincos _sincosf _sincosl _finite _finitef _qfinite \
|
|
_fpclass _qfpclass)
|
|
|
|
LIBS="$save_LIBS"
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check to see if this target can enable the wchar_t parts of libstdc++.
|
|
dnl
|
|
dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
|
|
dnl Define _GLIBCPP_NEED_MBSTATE_T if mbstate_t is not in wchar.h
|
|
dnl Define _GLIBCPP_HAS_WCHAR_MIN_MAX if WCHAR_MIN, WCHAR_MAX in wchar.h
|
|
dnl
|
|
dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
|
|
AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
|
|
AC_CHECK_HEADER(wchar.h,[
|
|
dnl Test wchar.h for mbstate_t, which is needed for char_traits and others.
|
|
AC_MSG_CHECKING([for native mbstate_t])
|
|
AC_TRY_COMPILE([#include <wchar.h>],
|
|
[mbstate_t teststate;],
|
|
use_native_mbstatet=yes, use_native_mbstatet=no)
|
|
AC_MSG_RESULT($use_native_mbstatet)
|
|
if test $use_native_mbstatet = "no"; then
|
|
AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T)
|
|
fi
|
|
|
|
dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
|
|
dnl numeric_limits can instantiate type_traits<wchar_t>
|
|
AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
|
|
AC_TRY_COMPILE([#include <wchar.h>],
|
|
[int i = WCHAR_MIN; int j = WCHAR_MAX;],
|
|
has_wchar_minmax=yes, has_wchar_minmax=no)
|
|
AC_MSG_RESULT($has_wchar_minmax)
|
|
if test $has_wchar_minmax = "yes"; then
|
|
AC_DEFINE(_GLIBCPP_HAS_WCHAR_MIN_MAX)
|
|
fi
|
|
|
|
# Test wchar.h for WEOF, which is what we use to determine whether
|
|
# to specialize for wchar_t or not.
|
|
AC_MSG_CHECKING([for WEOF])
|
|
AC_TRY_COMPILE([
|
|
#include <wchar.h>
|
|
#include <stddef.h>],
|
|
[wint_t i = WEOF;],
|
|
has_weof=yes, has_weof=no)
|
|
AC_MSG_RESULT($has_weof)
|
|
|
|
dnl Tests for wide character functions.
|
|
AC_REPLACE_STRINGFUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset)
|
|
AC_SUBST(libinst_wstring_la)
|
|
|
|
AC_MSG_CHECKING([for wide character support])
|
|
if test $has_weof = "yes" && test $has_wchar_minmax = "yes"; then
|
|
libinst_wstring_la="libinst-wstring.la"
|
|
AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
|
|
AC_MSG_RESULT(ok)
|
|
else
|
|
libinst_wstring_la=""
|
|
AC_MSG_RESULT("not specializing for wchar_t")
|
|
fi
|
|
],[
|
|
AC_MSG_WARN([<wchar.h> not found])
|
|
AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T)
|
|
])
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check to see if this version of GNU C++ is afflicted by bugs in
|
|
dnl __complex__ float support.
|
|
dnl
|
|
dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy.
|
|
dnl
|
|
dnl GLIBCPP_CHECK_COMPLEX_FLOAT_SUPPORT
|
|
AC_DEFUN(GLIBCPP_CHECK_COMPLEX_FLOAT_SUPPORT, [
|
|
AC_REQUIRE([AC_PROG_CXX])
|
|
AC_MSG_CHECKING([for GNU C++ __complex__ float support])
|
|
AC_CACHE_VAL(glibcpp_cv_float_complex, [
|
|
AC_LANG_SAVE
|
|
AC_LANG_CPLUSPLUS
|
|
rm -f conftest.h
|
|
cat > conftest.h <<EOB
|
|
//
|
|
// Check for buggy __complex__ that causes ICE in most versions of egcs
|
|
// and gcc-2.95.x on certain platforms (eg., x86-win32).
|
|
//
|
|
// See http://egcs.cygnus.com/ml/gcc-bugs/1999-07/msg00845.html for
|
|
// more info on the bug itself.
|
|
//
|
|
struct
|
|
float_complex
|
|
{
|
|
__complex__ float m_value;
|
|
float_complex (float = 0.0f, float = 0.0f);
|
|
float_complex (__complex__ float val) : m_value (val) {}
|
|
float_complex foo (const float_complex &val)
|
|
{ return float_complex (~val.m_value); }
|
|
};
|
|
EOB
|
|
AC_TRY_COMPILE([#include "conftest.h"], ,
|
|
glibcpp_cv_float_complex=ok,
|
|
glibcpp_cv_float_complex=buggy
|
|
)
|
|
AC_LANG_RESTORE
|
|
])
|
|
AC_MSG_RESULT($glibcpp_cv_float_complex)
|
|
if test $glibcpp_cv_float_complex = buggy; then
|
|
AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX)
|
|
fi
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl
|
|
dnl Check to see if this version of GNU C++ is afflicted by bugs in
|
|
dnl __complex__ support.Check for buggy __complex__ that will cause ICE in
|
|
dnl gcc-2.95.x when using the library, unless we define the default copy
|
|
dnl ctor in the specializations of complex<>.
|
|
dnl
|
|
dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy.
|
|
dnl
|
|
dnl GLIBCPP_CHECK_COMPLEX_SUPPORT
|
|
AC_DEFUN(GLIBCPP_CHECK_COMPLEX_SUPPORT, [
|
|
AC_REQUIRE([AC_PROG_CXX])
|
|
AC_MSG_CHECKING([for GNU C++ __complex__ support])
|
|
AC_CACHE_VAL(glibcpp_cv_complex, [
|
|
AC_LANG_SAVE
|
|
AC_LANG_CPLUSPLUS
|
|
AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \
|
|
dcomplex f(const dcomplex& x) { return dcomplex(x); }], \
|
|
[ dcomplex x; f(x); ],
|
|
glibcpp_cv_complex=ok,
|
|
glibcpp_cv_complex=buggy
|
|
)
|
|
AC_LANG_RESTORE
|
|
])
|
|
AC_MSG_RESULT($glibcpp_cv_complex)
|
|
if test $glibcpp_cv_complex = buggy; then
|
|
AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX)
|
|
fi
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check for certain special build configurations.
|
|
dnl
|
|
dnl GLIBCPP_ENABLE_DEBUG
|
|
dnl --enable-debug sets '-ggdb -O0'.
|
|
dnl --disable-debug sets '-g' and whatever optimization options the
|
|
dnl compiler can handle.
|
|
dnl + Perhaps --enable-maintainer-mode should automatically turn this on?
|
|
dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
|
|
dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
|
|
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
|
dnl defaults to `no'.
|
|
AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
|
|
define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
|
|
AC_ARG_ENABLE(debug,
|
|
changequote(<<, >>)dnl
|
|
<< --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
|
|
changequote([, ])dnl
|
|
[case "$enableval" in
|
|
yes) enable_debug=yes ;;
|
|
no) enable_debug=no ;;
|
|
*) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
|
|
esac],
|
|
enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
|
|
dnl Option parsed, now set things appropriately
|
|
case "$enable_debug" in
|
|
yes)
|
|
DEBUGFLAGS='-O0 -ggdb'
|
|
;;
|
|
no)
|
|
DEBUGFLAGS='-g'
|
|
;;
|
|
esac
|
|
AC_SUBST(DEBUGFLAGS)
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check for certain special build configurations.
|
|
dnl
|
|
dnl GLIBCPP_ENABLE_NAMESPACES
|
|
dnl --enable-namespaces sets '-fhonor-std' and defines _GLIBCPP_USE_NAMESPACES
|
|
dnl --disable-namespaces sets '-fno-honor-std' (the macro should be
|
|
dnl undefined by default in whatever.h.in).
|
|
dnl + Eventually, this will go away.
|
|
dnl + Usage: GLIBCPP_ENABLE_NAMESPACES[(DEFAULT)]
|
|
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
|
dnl defaults to `no'.
|
|
AC_DEFUN(GLIBCPP_ENABLE_NAMESPACES, [dnl
|
|
define([GLIBCPP_ENABLE_NAMESPACES_DEFAULT], ifelse($1, yes, yes, no))dnl
|
|
AC_ARG_ENABLE(namespaces,
|
|
changequote(<<, >>)dnl
|
|
<< --enable-namespaces turns on 'std' [default=>>GLIBCPP_ENABLE_NAMESPACES_DEFAULT],
|
|
changequote([, ])dnl
|
|
[case "$enableval" in
|
|
yes) enable_namespaces=yes ;;
|
|
no) enable_namespaces=no ;;
|
|
*) AC_MSG_ERROR([Unknown argument to enable/disable namespaces]) ;;
|
|
esac],
|
|
enable_namespaces=GLIBCPP_ENABLE_NAMESPACES_DEFAULT)dnl
|
|
dnl Option parsed, now set things appropriately
|
|
case "$enable_namespaces" in
|
|
yes) NAMESPACES='-fhonor-std'
|
|
AC_DEFINE(_GLIBCPP_USE_NAMESPACES)
|
|
;;
|
|
no) NAMESPACES='-fno-honor-std'
|
|
;;
|
|
esac
|
|
AC_SUBST(NAMESPACES)
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check for instructions to automatically rebuild libgcc.a. Requires,
|
|
dnl of course, the location of the gcc objdir. Note that if --disable-
|
|
dnl namespaces is in effect, rebuilding libgcc.a is an expensive no-op.
|
|
dnl
|
|
dnl GLIBCPP_ENABLE_RELIBGCC
|
|
dnl --enable-libgcc-rebuild=/absolute/path/to/gcc/objdir sets GCC_OBJDIR
|
|
dnl (presumably in the top-level Makefile) to /absol.../objdir
|
|
dnl --disable-libgcc-rebuild will not touch libgcc.a at all (maybe print
|
|
dnl a warning if this is given along with --enable-namespaces), by
|
|
dnl setting GCC_OBJDIR to `no'.
|
|
dnl + Doing this by default is going to be interesting. What default
|
|
dnl "on" value can there be?
|
|
dnl + Usage: GLIBCPP_ENABLE_RELIBGCC[(DEFAULT)]
|
|
dnl The default path should be ../.. if bundled with GCC source.
|
|
dnl If ommitted, it defaults to `no'.
|
|
dnl
|
|
AC_DEFUN(GLIBCPP_ENABLE_RELIBGCC, [dnl
|
|
define([GLIBCPP_ENABLE_RELIBGCC_DEFAULT], ifelse($1,, no, $1))dnl
|
|
AC_ARG_ENABLE(libgcc-rebuild,
|
|
changequote(<<, >>)dnl
|
|
<< --enable-libgcc-rebuild=DIR also rebuild libgcc.a; DIR is
|
|
the GCC objdir; see install.html>>,
|
|
changequote([, ])dnl
|
|
[case "$enableval" in
|
|
yes) AC_MSG_ERROR([--enable-libgcc-rebuild needs a pathname]) ;;
|
|
no) enable_libgcc_rebuild=no ;;
|
|
*) if test -d "$enableval" && test -d "${enableval}/gcc" && \
|
|
test -d "${enableval}/libiberty"
|
|
then
|
|
enable_libgcc_rebuild="$enableval"
|
|
else
|
|
AC_MSG_ERROR(["$enableval" does not appear to be the GCC objdir])
|
|
fi
|
|
;;
|
|
esac],
|
|
enable_libgcc_rebuild=GLIBCPP_ENABLE_RELIBGCC_DEFAULT)dnl
|
|
GCC_OBJDIR="$enable_libgcc_rebuild"
|
|
AC_SUBST(GCC_OBJDIR)
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check for certain special build configurations.
|
|
dnl
|
|
dnl GLIBCPP_ENABLE_CSTDIO
|
|
dnl --enable-cstdio=libio sets config/c_io_libio.h and friends
|
|
dnl
|
|
dnl default is libio
|
|
dnl
|
|
AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
|
|
AC_MSG_CHECKING([for cstdio to use])
|
|
AC_ARG_ENABLE(cstdio,
|
|
[ --enable-cstdio enable GNU libio for target io package. (default)
|
|
--enable-cstdio=LIB use LIB target-speific io package.],
|
|
if test x$enable_cstdio = xno; then
|
|
enable_cstdio=libio
|
|
fi,
|
|
enable_cstdio=libio)
|
|
|
|
enable_cstdio_flag=$enable_cstdio
|
|
|
|
dnl Check if a valid thread package
|
|
case x${enable_cstdio_flag} in
|
|
xlibio | x | xno | xnone | xyes)
|
|
# default
|
|
CSTDIO_H=c_io_libio.h
|
|
CSTDIO_CC=c_io_libio.cc
|
|
AC_MSG_RESULT(libio)
|
|
|
|
# see if we are on a system with libio native (ie, linux)
|
|
AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
|
|
if test $has_libio = "yes"; then
|
|
BUILD_LIBIO_INCLUDE=
|
|
need_libio=no
|
|
else
|
|
BUILD_LIBIO_INCLUDE='-I../libio'
|
|
need_libio=yes
|
|
fi
|
|
AC_SUBST(BUILD_LIBIO_INCLUDE)
|
|
|
|
# see if the _G_config.h header needs to be built.
|
|
# NB: This replaces the _G_CONFIG_H machinery in libio-v2
|
|
AC_CHECK_HEADER(_G_config.h, has_gconf_h=yes, has_gconf_h=no)
|
|
AM_CONDITIONAL(GLIBCPP_NEED_LIBIO_CONFIG_H, test "$has_gconf_h" = no)
|
|
;;
|
|
xwince)
|
|
CSTDIO_H=c_io_wince.h
|
|
CSTDIO_CC=c_io_wince.cc
|
|
AC_MSG_RESULT(wince)
|
|
|
|
need_libio=no
|
|
BUILD_LIBIO_INCLUDE=
|
|
AC_SUBST(BUILD_LIBIO_INCLUDE)
|
|
;;
|
|
*)
|
|
echo "$enable_cstdio is an unknown io package" 1>&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
AC_SUBST(CSTDIO_H)
|
|
AC_SUBST(CSTDIO_CC)
|
|
AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check for certain special build configurations.
|
|
dnl
|
|
dnl GLIBCPP_ENABLE_THREADS
|
|
dnl --enable-threads=posix sets config/threads-posix.h et. al.
|
|
dnl
|
|
dnl default is no threads
|
|
dnl
|
|
AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
|
|
dnl Note this comes from the gcc/config.in and libjava/config.in
|
|
dnl Efforts should be made to keep this in sync.
|
|
AC_MSG_CHECKING([for threads package to use])
|
|
AC_ARG_ENABLE(threads,
|
|
[ --enable-threads enable thread usage for target GCC.
|
|
--enable-threads=LIB use LIB thread package for target GCC.],
|
|
if test x$enable_threads = xno; then
|
|
enable_threads=''
|
|
fi,
|
|
enable_threads='')
|
|
|
|
enable_threads_flag=$enable_threads
|
|
|
|
dnl Check if a valid thread package
|
|
case x${enable_threads_flag} in
|
|
x | xno | xnone)
|
|
# No threads
|
|
target_thread_file='single'
|
|
;;
|
|
xyes)
|
|
# default
|
|
target_thread_file=''
|
|
;;
|
|
xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
|
|
xsolaris | xwin32 | xdce | xvxworks)
|
|
target_thread_file=$enable_threads_flag
|
|
;;
|
|
*)
|
|
echo "$enable_threads is an unknown thread package" 1>&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
dnl Check for thread package actually supported in libstdc++
|
|
case "$target_thread_file" in
|
|
no | none | single)
|
|
THREADS=none
|
|
;;
|
|
posix | pthreads)
|
|
THREADS=posix
|
|
case "$host" in
|
|
*-*-linux*)
|
|
;;
|
|
esac
|
|
;;
|
|
decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
|
|
AC_MSG_ERROR(thread package $THREADS not yet supported)
|
|
;;
|
|
*)
|
|
AC_MSG_ERROR($THREADS is an unknown thread package)
|
|
;;
|
|
esac
|
|
AC_MSG_RESULT($THREADS)
|
|
|
|
THREADLIBS=
|
|
THREADINCS=
|
|
THREADDEPS=
|
|
THREADOBJS=
|
|
THREADH=
|
|
THREADSPEC=
|
|
case "$THREADS" in
|
|
posix)
|
|
AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
|
|
THREADLIBS=-lpthread
|
|
THREADSPEC=-lpthread
|
|
dnl Not presently used
|
|
dnl THREADOBJS=threads-posix.lo
|
|
THREADH=threads-posix.h
|
|
;;
|
|
none)
|
|
dnl Not presently used
|
|
dnl THREADOBJS=threads-no.lo
|
|
THREADH=threads-no.h
|
|
;;
|
|
esac
|
|
AC_SUBST(THREADLIBS)
|
|
AC_SUBST(THREADINCS)
|
|
AC_SUBST(THREADDEPS)
|
|
AC_SUBST(THREADOBJS)
|
|
AC_SUBST(THREADSPEC)
|
|
])
|
|
|
|
|
|
dnl
|
|
dnl Check for certain special build configurations.
|
|
dnl
|
|
dnl GLIBCPP_ENABLE_LONG_LONG
|
|
dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
|
|
dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
|
|
dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
|
|
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
|
dnl defaults to `no'.
|
|
dnl
|
|
dnl GLIBCPP_ENABLE_LONG_LONG
|
|
AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
|
|
define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
|
|
AC_ARG_ENABLE(long-long,
|
|
changequote(<<, >>)dnl
|
|
<<--enable-long_long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
|
|
changequote([, ])dnl
|
|
[case "$enableval" in
|
|
yes) enable_long_long=yes ;;
|
|
no) enable_long_long=no ;;
|
|
*) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
|
|
esac],
|
|
enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
|
|
dnl Option parsed, now set things appropriately
|
|
case "$enable_long_long" in
|
|
yes) AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
|
|
;;
|
|
esac
|
|
])
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|