source: trunk/third/gcc/libjava/acinclude.m4 @ 20089

AC_DEFUN([AC_COMPILE_CHECK_SIZEOF],
[changequote(<<, >>)dnl
dnl The name to #define.
define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl
dnl The cache variable name.
define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
changequote([, ])dnl
AC_MSG_CHECKING(size of $1)
AC_CACHE_VAL(AC_CV_NAME,
[for ac_size in 4 8 1 2 16 12 $2 ; do # List sizes in rough order of prevalence.
  AC_TRY_COMPILE([#include "confdefs.h"
#include <sys/types.h>
$2
], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size)
  if test x$AC_CV_NAME != x ; then break; fi
done
])
if test x$AC_CV_NAME = x ; then
  AC_MSG_ERROR([cannot determine a size for $1])
fi
AC_MSG_RESULT($AC_CV_NAME)
AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1])
undefine([AC_TYPE_NAME])dnl
undefine([AC_CV_NAME])dnl
])

AC_DEFUN(LIBGCJ_CONFIGURE,
[
dnl Default to --enable-multilib
AC_ARG_ENABLE(multilib,
[  --enable-multilib       build many library versions (default)],
[case "${enableval}" in
  yes) multilib=yes ;;
  no)  multilib=no ;;
  *)   AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
 esac], [multilib=yes])dnl

dnl We may get other options which we don't document:
dnl --with-target-subdir, --with-multisrctop, --with-multisubdir

# 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
    toprel=".."
  else
    if test "${with_target_subdir}" != "."; then
      toprel="${with_multisrctop}../.."
    else
      toprel="${with_multisrctop}.."
    fi
  fi
else
  toprel=".."
fi

libgcj_basedir=$srcdir/$toprel/$1/libjava
AC_SUBST(libgcj_basedir)

AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
if :; then :; else
  # This overrides the previous occurrence for automake, but not for
  # autoconf, which is exactly what we want.
  AC_CONFIG_AUX_DIR(..)
fi

# This works around an automake problem.
mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
AC_SUBST(mkinstalldirs)

AC_CANONICAL_SYSTEM

dnl This shouldn't be needed, as long as top-level dependencies are
dnl defined correctly and shared-library paths are set up so that
dnl execution tests succeed.  FIXME.
define([AC_PROG_CC_WORKS],[])
define([AC_PROG_CXX_WORKS],[])

AC_PROG_CC

# We use the libstdc++-v3 version of LIB_AC_PROG_CXX, but use
# glibjava_CXX instead of glibcpp_CXX.  That's because we're passed a
# different definition of CXX than other directories, since we don't
# depend on libstdc++-v3 having already been built.
AC_DEFUN(LIB_AC_PROG_CXX,
[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
dnl Fool anybody using AC_PROG_CXX.
AC_PROVIDE([AC_PROG_CXX])
# Use glibjava_CXX so that we do not cause CXX to be cached with the
# flags that come in CXX while configuring libjava.  They're different
# from those used for all other target libraries.  If CXX is set in
# the environment, respect that here.
glibjava_CXX=$CXX
AC_CHECK_PROGS(glibjava_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
AC_SUBST(CXX)
CXX=$glibjava_CXX
test -z "$glibjava_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])

AC_PROG_CXX_GNU

if test $ac_cv_prog_gxx = yes; then
  GXX=yes
dnl Check whether -g works, even if CXXFLAGS is set, in case the package
dnl plays around with CXXFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
  ac_test_CXXFLAGS="${CXXFLAGS+set}"
  ac_save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS=
  AC_PROG_CXX_G
  if test "$ac_test_CXXFLAGS" = set; then
    CXXFLAGS="$ac_save_CXXFLAGS"
  elif test $ac_cv_prog_cxx_g = yes; then
    CXXFLAGS="-g -O2"
  else
    CXXFLAGS="-O2"
  fi
else
  GXX=
  test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
fi
])

LIB_AC_PROG_CXX

dnl version is pulled out to make it a bit easier to change using sed.
version=0.0.7
dnl Still use "libjava" here to placate dejagnu.
AM_INIT_AUTOMAKE(libjava, $version)

# AC_CHECK_TOOL does AC_REQUIRE (AC_CANONICAL_BUILD).  If we don't
# run it explicitly here, it will be run implicitly before
# LIBGCJ_CONFIGURE, which doesn't work because that means that it will
# be run before AC_CANONICAL_HOST.
AC_CANONICAL_BUILD

AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)

AC_PROG_INSTALL

AM_MAINTAINER_MODE

AC_EXEEXT

# configure.host sets the following important variables
#       libgcj_cflags    - host specific C compiler flags
#       libgcj_cxxflags  - host specific C++ compiler flags
#       libgcj_javaflags - host specific Java compiler flags

libgcj_cflags=
libgcj_cxxflags=
libgcj_javaflags=

. [$]{srcdir}/configure.host

LIBGCJ_CFLAGS="[$]{libgcj_cflags}"
LIBGCJ_CXXFLAGS="[$]{libgcj_cxxflags}"
LIBGCJ_JAVAFLAGS="[$]{libgcj_javaflags}"
AC_SUBST(LIBGCJ_CFLAGS)
AC_SUBST(LIBGCJ_CXXFLAGS)
AC_SUBST(LIBGCJ_JAVAFLAGS)
])dnl

sinclude(../libtool.m4)
dnl The lines below arrange for aclocal not to bring libtool.m4
dnl AM_PROG_LIBTOOL into aclocal.m4, while still arranging for automake
dnl to add a definition of LIBTOOL to Makefile.in.
ifelse(yes,no,[
AC_DEFUN([AM_PROG_LIBTOOL],)
AC_DEFUN([AC_LIBTOOL_DLOPEN],)
AC_DEFUN([AC_LIBLTDL_CONVENIENCE],)
AC_DEFUN([LT_AC_PROG_GCJ],)
AC_SUBST(GCJ)
AC_SUBST(LIBTOOL)
])

#serial AM2

dnl From Bruno Haible.

AC_DEFUN([AM_ICONV],
[
  dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
  dnl those with the standalone portable GNU libiconv installed).

  am_cv_lib_iconv_ldpath=
  AC_ARG_WITH([libiconv-prefix],
[  --with-libiconv-prefix=DIR  search for libiconv in DIR/include and DIR/lib], [
    for dir in `echo "$withval" | tr : ' '`; do
      if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
      if test -d $dir/lib; then am_cv_lib_iconv_ldpath="-L$dir/lib"; fi
    done
   ])

  AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
    am_cv_func_iconv="no, consider installing GNU libiconv"
    am_cv_lib_iconv=no
    AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
      [iconv_t cd = iconv_open("","");
       iconv(cd,NULL,NULL,NULL,NULL);
       iconv_close(cd);],
      am_cv_func_iconv=yes)
    if test "$am_cv_func_iconv" != yes; then
      am_save_LIBS="$LIBS"
      LIBS="$LIBS $am_cv_libiconv_ldpath -liconv"
      AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
        [iconv_t cd = iconv_open("","");
         iconv(cd,NULL,NULL,NULL,NULL);
         iconv_close(cd);],
        am_cv_lib_iconv=yes
        am_cv_func_iconv=yes)
      LIBS="$am_save_LIBS"
    fi
  ])
  if test "$am_cv_func_iconv" = yes; then
    AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
    AC_MSG_CHECKING([for iconv declaration])
    AC_CACHE_VAL(am_cv_proto_iconv, [
      AC_TRY_COMPILE([
#include <stdlib.h>
#include <iconv.h>
extern
#ifdef __cplusplus
"C"
#endif
#if defined(__STDC__) || defined(__cplusplus)
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
#else
size_t iconv();
#endif
], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
    am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
    AC_MSG_RESULT([$]{ac_t:-
         }[$]am_cv_proto_iconv)
    AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
      [Define as const if the declaration of iconv() needs const.])
  fi
  LIBICONV=
  if test "$am_cv_lib_iconv" = yes; then
    LIBICONV="$am_cv_lib_iconv_ldpath -liconv"
  fi
  AC_SUBST(LIBICONV)
])

# Check whether LC_MESSAGES is available in <locale.h>.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
# This file can be copied and used freely without restrictions.  It can
# be used in projects which are not available under the GNU General Public
# License or the GNU Library General Public License but which still want
# to provide support for the GNU gettext functionality.
# Please note that the actual code of the GNU gettext library is covered
# by the GNU Library General Public License, and the rest of the GNU
# gettext package package is covered by the GNU General Public License.
# They are *not* in the public domain.

# serial 2

AC_DEFUN([AM_LC_MESSAGES],
  [if test $ac_cv_header_locale_h = yes; then
    AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
      [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
       am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
    if test $am_cv_val_LC_MESSAGES = yes; then
      AC_DEFINE(HAVE_LC_MESSAGES, 1,
        [Define if your <locale.h> file defines LC_MESSAGES.])
    fi
  fi])

AC_DEFUN([CHECK_FOR_BROKEN_MINGW_LD],
[
AC_MSG_CHECKING(whether 'ld' is at least 2.13)
LD_PROG=`$CC --print-prog-name=ld`
LD_VERSION=`$LD_PROG --version`
LD_VERSION_MAJOR=`echo "$LD_VERSION" | head -1 | cut -d '.' -f 1 | cut -d ' ' -f 4`
LD_VERSION_MINOR=`echo "$LD_VERSION" | head -1 | cut -d '.' -f 2`
if expr "$LD_VERSION_MAJOR" \> 2 > /dev/null; then
  LD_OK="ok"
else
  if expr "$LD_VERSION_MAJOR" = 2 && expr "$LD_VERSION_MINOR" \>= 13 > /dev/null; then
    LD_OK="ok"
  fi
fi
if test "x$LD_OK" != x; then
  AC_MSG_RESULT([yes; major=$LD_VERSION_MAJOR, minor=$LD_VERSION_MINOR])
else
  AC_MSG_RESULT([no; major=$LD_VERSION_MAJOR, minor=$LD_VERSION_MINOR])
  AC_MSG_WARN([ld <2.13 detected; enabling JV_LINKER_CANNOT_8BYTE_ALIGN_STATICS hack...])
  AC_DEFINE(JV_LINKER_CANNOT_8BYTE_ALIGN_STATICS, 1,
            [Indicate that linker is not able to 8-byte align static data])
fi[]dnl
])# CHECK_FOR_BROKEN_MINGW_LD