# Process this file with autoconf to produce a configure script.
-# Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
-# Contributed by Dave Love (d.love@dl.ac.uk).
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004
+# Free Software Foundation, Inc.
+# Originally contributed by Dave Love (d.love@dl.ac.uk).
#
-#This file is part of GNU Objective C.
+#This file is part of GCC.
#
-#GNU Objective C is free software; you can redistribute it and/or modify
+#GCC is free software; you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation; either version 2, or (at your option)
#any later version.
#
-#GNU Objective C is distributed in the hope that it will be useful,
+#GCC is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#GNU General Public License for more details.
#
#You should have received a copy of the GNU General Public License
-#along with GNU Objective C; see the file COPYING. If not, write to
+#along with GCC; see the file COPYING. If not, write to
#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#02111-1307, USA.
-AC_PREREQ(2.13)
-AC_INIT(objc/objc.h)
-AC_CONFIG_HEADER(config.h)
+AC_PREREQ(2.59)
+AC_INIT
+AC_CONFIG_SRCDIR([objc/objc.h])
+
+# We need the following definitions because AC_PROG_LIBTOOL relies on them
+PACKAGE=libobjc
+# Version is pulled out to make it a bit easier to change using sed.
+VERSION=1:0:0
+AC_SUBST(VERSION)
+
+# This works around the fact that libtool configuration may change LD
+# for this particular configuration, but some shells, instead of
+# keeping the changes in LD private, export them just because LD is
+# exported.
+ORIGINAL_LD_FOR_MULTILIBS=$LD
+
+# -------
+# Options
+# -------
+
+# Default to --enable-multilib
+AC_ARG_ENABLE(multilib,
+ [ --enable-multilib build hella library versions (default)],
+ [case "${enableval}" in
+ yes) multilib=yes ;;
+ no) multilib=no ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
+ esac],
+ [multilib=yes])
+
+# We use these options to decide which functions to include.
+AC_ARG_WITH(target-subdir,
+[ --with-target-subdir=SUBDIR
+ configuring in a subdirectory])
+AC_ARG_WITH(cross-host,
+[ --with-cross-host=HOST configuring with a cross compiler])
+
+AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
+AC_ARG_ENABLE(version-specific-runtime-libs,
+[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
+[case "$enableval" in
+ yes) version_specific_libs=yes ;;
+ no) version_specific_libs=no ;;
+ *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
+ esac],
+[version_specific_libs=no])
+AC_MSG_RESULT($version_specific_libs)
-if test "${srcdir}" = "." ; then
- if test "${with_target_subdir}" != "." ; then
- topsrcdir=${with_multisrctop}../..
+AC_ARG_ENABLE(objc-gc,
+[ --enable-objc-gc enable the use of Boehm's garbage collector with
+ the GNU Objective-C runtime.],
+[case $enable_objc_gc in
+ no) OBJC_BOEHM_GC='' ;;
+ *) OBJC_BOEHM_GC=libobjc_gc.la ;;
+esac],
+[OBJC_BOEHM_GC=''])
+AC_SUBST(OBJC_BOEHM_GC)
+
+# -----------
+# Directories
+# -----------
+
+# When building with srcdir == objdir, links to the source files will
+# be created in directories within the target_subdir. We have to
+# adjust toplevel_srcdir accordingly, so that configure finds
+# install-sh and other auxiliary files that live in the top-level
+# source directory.
+if test "${srcdir}" = "."; then
+ if test -z "${with_target_subdir}"; then
+ toprel=".."
else
- topsrcdir=${with_multisrctop}..
+ if test "${with_target_subdir}" != "."; then
+ toprel="${with_multisrctop}../.."
+ else
+ toprel="${with_multisrctop}.."
+ fi
fi
else
- topsrcdir=${srcdir}/..
+ toprel=".."
fi
-dnl This is needed for a multilibbed build in the source tree so
-dnl that install-sh and config.sub get found.
-AC_CONFIG_AUX_DIR($topsrcdir)
-
-# If the language specific compiler does not exist, but the "gcc" directory
-# does, we do not build anything. Note, $r is set by the top-level Makefile.
-# Note that when we look for the compiler, we search both with and without
-# extension to handle cross and canadian cross builds.
-compiler_name=cc1obj
-rm -f skip-this-dir
-AC_MSG_CHECKING(if compiler $compiler_name has been built)
-AC_CACHE_VAL(objc_cv_compiler_exists,
-[objc_cv_compiler_exists=yes
-if test -n "$r"; then
- if test -d "$r"/gcc; then
- if test -f "$r"/gcc/$compiler_name \
- || test -f "$r"/gcc/$compiler_name.exe; then
- true
+AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
+toplevel_srcdir=\${srcdir}/$toprel
+AC_SUBST(toplevel_srcdir)
+
+AC_CANONICAL_SYSTEM
+_GCC_TOPLEV_NONCANONICAL_TARGET
+AC_SUBST(target_noncanonical)
+
+# Export source directory.
+# These need to be absolute paths, yet at the same time need to
+# canonicalize only relative paths, because then amd will not unmount
+# drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
+case $srcdir in
+ [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
+ *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
+esac
+AC_SUBST(glibcpp_srcdir)
+
+# Process the option "--enable-version-specific-runtime-libs"
+gcc_version_trigger=${srcdir}/../gcc/version.c
+gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'`
+gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
+AC_SUBST(gcc_version)
+
+# Calculate toolexeclibdir
+case ${version_specific_libs} in
+ yes)
+ # Need the gcc compiler version to know where to install libraries
+ # and header files if --enable-version-specific-runtime-libs option
+ # is selected.
+ toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
+ ;;
+ no)
+ if test -n "$with_cross_host" &&
+ test x"$with_cross_host" != x"no"; then
+ # Install a library built with a cross compiler in tooldir, not libdir.
+ toolexeclibdir='$(toolexecdir)/lib'
else
- objc_cv_compiler_exists=no
- echo "rm -f config.cache config.log multilib.out" > skip-this-dir
+ toolexeclibdir='$(libdir)'
fi
- fi
-fi
-])
-AC_MSG_RESULT($objc_cv_compiler_exists)
-if test x$objc_cv_compiler_exists = xno
-then
- rm -f Makefile conftest* confdefs* core
- exit 0
-fi
-
-dnl Checks for programs.
-# For ObjC we'll set CC to point at the built gcc, but this will get it into
-# the makefiles
+ multi_os_directory=`$CC -print-multi-os-directory`
+ case $multi_os_directory in
+ .) ;; # Avoid trailing /.
+ *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
+ esac
+ ;;
+esac
+AC_SUBST(toolexeclibdir)
+
+glibcpp_prefixdir=${prefix}
+AC_SUBST(glibcpp_prefixdir)
+
+# --------
+# Programs
+# --------
+
+GCC_NO_EXECUTABLES
AC_PROG_CC
-test "$AR" || AR=ar
-AC_SUBST(AR)
-if test "$RANLIB"; then :
- AC_SUBST(RANLIB)
-else
- AC_PROG_RANLIB
-fi
+AC_CHECK_TOOL(AS, as)
+AC_CHECK_TOOL(AR, ar)
+AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_PROG_INSTALL
-dnl Checks for libraries.
+# Disable shared libs by default
+AC_DISABLE_SHARED
+# Enable Win32 DLL on MS Windows - FIXME
+AC_LIBTOOL_WIN32_DLL
+
+AC_PROG_LIBTOOL
+
+AC_PROG_MAKE_SET
+
+# -------
+# Headers
+# -------
-dnl Checks for header files.
# Sanity check for the cross-compilation case:
AC_CHECK_HEADER(stdio.h,:,
[AC_MSG_ERROR([Can't find stdio.h.
AC_CHECK_HEADERS(sched.h)
-# Determine CFLAGS for gthread.
+# -----------
+# Miscellanea
+# -----------
+# Determine CFLAGS for gthread.
+# FIXME: the current implementation is dependent on the 'r' variable
+# passed down from the top level
AC_CACHE_CHECK([for gthread cflags],objc_cv_gthread_flags,
[if test -f "$r"/gcc/Makefile
then
GTHREAD_FLAGS=$objc_cv_gthread_flags
AC_SUBST(GTHREAD_FLAGS)
-# Disable shared libs by default
-AC_DISABLE_SHARED
-# Enable Win32 DLL on MS Windows - FIXME
-AC_LIBTOOL_WIN32_DLL
-# Use libtool
-AC_PROG_LIBTOOL
-
-AC_ARG_ENABLE(objc-gc,
-[ --enable-objc-gc enable the use of Boehm's garbage collector with
- the GNU Objective-C runtime.],
-if [[[ x$enable_objc_gc = xno ]]]; then
- OBJC_BOEHM_GC=''
-else
- OBJC_BOEHM_GC=libobjc_gc.la
-fi,
-OBJC_BOEHM_GC='')
-AC_SUBST(OBJC_BOEHM_GC)
+# ------
+# Output
+# ------
+AC_CONFIG_FILES([Makefile])
-# We need multilib support, but only if configuring for the target.
-AC_OUTPUT(Makefile,
-[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
-if test -n "$CONFIG_FILES"; then
+AC_CONFIG_COMMANDS([default],
+[[if test -n "$CONFIG_FILES"; then
if test -n "${with_target_subdir}"; then
# FIXME: We shouldn't need to set ac_file
ac_file=Makefile
- . ${topsrcdir}/config-ml.in
+ LD="${ORIGINAL_LD_FOR_MULTILIBS}"
+ . ${toplevel_srcdir}/config-ml.in
fi
-fi],
-srcdir=${srcdir}
+fi]],
+[[srcdir=${srcdir}
host=${host}
target=${target}
with_target_subdir=${with_target_subdir}
with_multisubdir=${with_multisubdir}
ac_configure_args="--enable-multilib ${ac_configure_args}"
+toplevel_srcdir=${toplevel_srcdir}
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
-topsrcdir=${topsrcdir}
-)
-
-dnl Local Variables:
-dnl comment-start: "dnl "
-dnl comment-end: ""
-dnl comment-start-skip: "\\bdnl\\b\\s *"
-dnl End:
+ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
+]])
+
+AC_OUTPUT
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