gcc/libjava/acinclude.m4

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1999-04-07 16:42:40 +02:00
# FIXME: We temporarily define our own version of AC_PROG_CC. This is
# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
# are probably using a cross compiler, which will not be able to fully
# link an executable. This should really be fixed in autoconf
# itself.
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 ${enableval} for multilib option) ;;
esac], [multilib=yes])dnl
dnl We may get other options which we dont document:
dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
if test "[$]{srcdir}" = "."; then
if test "[$]{with_target_subdir}" != "."; then
libgcj_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
else
libgcj_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
fi
else
libgcj_basedir="[$]{srcdir}/$1"
fi
AC_SUBST(libgcj_basedir)
AC_CANONICAL_HOST
dnl Still use "libjava" here to placate dejagnu.
AM_INIT_AUTOMAKE(libjava, 0.0.7)
# FIXME: We temporarily define our own version of AC_PROG_CC. This is
# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
# are probably using a cross compiler, which will not be able to fully
# link an executable. This should really be fixed in autoconf
# itself.
AC_DEFUN(LIB_AC_PROG_CC,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_CHECK_PROG(CC, gcc, gcc)
if test -z "$CC"; then
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
fi
AC_PROG_CC_GNU
if test $ac_cv_prog_gcc = yes; then
GCC=yes
dnl Check whether -g works, even if CFLAGS is set, in case the package
dnl plays around with CFLAGS (such as to build both debugging and
dnl normal versions of a library), tasteless as that idea is.
ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS=
AC_PROG_CC_G
if test "$ac_test_CFLAGS" = set; then
CFLAGS="$ac_save_CFLAGS"
elif test $ac_cv_prog_cc_g = yes; then
CFLAGS="-g -O2"
else
CFLAGS="-O2"
fi
else
GCC=
test "${CFLAGS+set}" = set || CFLAGS="-g"
fi
])
LIB_AC_PROG_CC
# Likewise for AC_PROG_CXX.
AC_DEFUN(LIB_AC_PROG_CXX,
[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
test -z "$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
# AC_CHECK_TOOL does AC_REQUIRE (AC_CANONICAL_BUILD). If we dont
# 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
# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
# at least currently, we never actually build a program, so we never
# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
# fails, because we are probably configuring with a cross compiler
# which cant create executables. So we include AC_EXEEXT to keep
# automake happy, but we dont execute it, since we dont care about
# the result.
if false; then
AC_EXEEXT
fi
# configure.host sets the following important variables
# libgcj_cflags - host specific C compiler flags
# libgcj_cxxflags - host specific C++ compiler flags
# libgcj_javaflags - host specific Java compiler flags
libgcj_cflags=
libgcj_cxxflags=
libgcj_javaflags=
. [$]{libgcj_basedir}/configure.host
case [$]{libgcj_basedir} in
/* | [A-Za-z]:[/\\]*) libgcj_flagbasedir=[$]{libgcj_basedir} ;;
*) libgcj_flagbasedir='[$](top_builddir)/'[$]{libgcj_basedir} ;;
esac
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