# Copyright (c) 1999, 2000, 2001, 2002, 2003 by Red Hat, Inc. All rights reserved.
# Copyright 2004 Nathanael Nerode
#
# THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
# OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
#
# Permission is hereby granted to use or copy this program
# for any purpose, provided the above notices are retained on all copies.
# Permission to modify the code and to distribute modified code is granted,
# provided the above notices are retained, and a notice that the code was
# modified is included with the above copyright notice.
#
# Original author: Tom Tromey
# Modified by Nathanael Nerode
dnl Process this file with autoconf to produce configure.
AC_PREREQ(2.59)
AC_INIT(gcj_mlc.c)
# 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=$LD
dnl Default to --enable-multilib
AC_ARG_ENABLE(multilib,
[ --enable-multilib build many library versions (default)],
[case "${enableval}" in
yes) multilib=yes ;;
no) multilib=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
esac], [multilib=yes])dnl
dnl We may get other options which we don't document:
dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
dnl I needed to add the -n test to allow configuration in src directory - HB
if test "[$]{srcdir}" = "."; then
if test "[$]{with_target_subdir}" != "." -a -n "[$]{with_target_subdir}"; then
gc_basedir="[$]{srcdir}/[$]{with_multisrctop}../."
else
gc_basedir="[$]{srcdir}/[$]{with_multisrctop}."
fi
else
gc_basedir="[$]{srcdir}/."
fi
AC_SUBST(gc_basedir)
AC_CONFIG_AUX_DIR($gc_basedir/..)
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
AC_CANONICAL_SYSTEM
# Get the 'noncanonical' system names.
sinclude(../config/acx.m4)
_GCC_TOPLEV_NONCANONICAL_BUILD
_GCC_TOPLEV_NONCANONICAL_HOST
_GCC_TOPLEV_NONCANONICAL_TARGET
# This works around an automake problem.
mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
AC_SUBST(mkinstalldirs)
AM_INIT_AUTOMAKE(gc, 6.1a1, no-define)
# The autoconf 2.5x version of the no-executables hack.
sinclude(../config/no-executables.m4)
GCC_NO_EXECUTABLES
# Yak. We must force CC and CXX to /not/ be precious variables; otherwise
# the wrong, non-multilib-adjusted value will be used in multilibs.
# As a side effect, we have to subst CFLAGS and CXXFLAGS ourselves.
m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AC_PROG_CC
AC_PROG_CXX
m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
AC_SUBST(CFLAGS)
AC_SUBST(CXXFLAGS)
# Newer automakes demand CCAS and CCASFLAGS.
: ${CCAS='$(CC)'}
: ${CCASFLAGS='$(CFLAGS)'}
AC_SUBST(CCAS)
AC_SUBST(CCASFLAGS)
AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_PROG_INSTALL
AM_MAINTAINER_MODE
. [$]{srcdir}/configure.host
case [$]{gc_basedir} in
/* | [A-Za-z]:[/\\]*) gc_flagbasedir=[$]{gc_basedir} ;;
*) gc_flagbasedir='[$](top_builddir)/'[$]{gc_basedir} ;;
esac
gc_cflags="[$]{gc_cflags} -I"'[$](top_builddir)'"/./targ-include -I[$]{gc_flagbasedir}/libc/include"
case "${host}" in
*-*-cygwin32*)
gc_cflags="[$]{gc_cflags} -I[$]{gc_flagbasedir}/../winsup/include"
;;
esac
dnl gc_cflags="[$]{gc_cflags} -fno-builtin"
GC_CFLAGS=${gc_cflags}
AC_SUBST(GC_CFLAGS)
AM_PROG_LIBTOOL
dnl We use these options to decide which functions to include.
AC_ARG_WITH(target-subdir,
[ --with-target-subdir=SUBDIR
configuring with a cross compiler])
AC_ARG_WITH(cross-host,
[ --with-cross-host=HOST configuring with a cross compiler])
AC_MSG_CHECKING([for thread model used by GCC])
THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
if test -z "$THREADS"; then
THREADS=no
fi
AC_MSG_RESULT([$THREADS])
AC_ARG_ENABLE(parallel-mark,
[ --enable-parallel-mark parallelize marking and free list construction],
[case "$THREADS" in
no | none | single)
AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
;;
esac]
)
INCLUDES="-I`cd $srcdir && ${PWDCMD-pwd}`/include"
THREADLIBS=
case "$THREADS" in
no | none | single)
THREADS=none
;;
posix | pthreads)
THREADS=posix
THREADLIBS=-lpthread
case "$host" in
x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
AC_DEFINE(GC_LINUX_THREADS)
AC_DEFINE(_REENTRANT)
if test "${enable_parallel_mark}" = yes; then
AC_DEFINE(PARALLEL_MARK)
fi
AC_DEFINE(THREAD_LOCAL_ALLOC)
;;
*-*-linux*)
AC_DEFINE(GC_LINUX_THREADS)
AC_DEFINE(_REENTRANT)
;;
*-*-aix*)
AC_DEFINE(GC_AIX_THREADS)
AC_DEFINE(_REENTRANT)
;;
*-*-hpux*)
AC_MSG_WARN("Only HP/UX 11 threads are supported.")
AC_DEFINE(GC_HPUX_THREADS)
AC_DEFINE(_POSIX_C_SOURCE,199506L)
if test "${enable_parallel_mark}" = yes; then
AC_DEFINE(PARALLEL_MARK)
fi
AC_DEFINE(THREAD_LOCAL_ALLOC)
THREADLIBS="-lpthread -lrt"
;;
*-*-freebsd*)
AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
AC_DEFINE(GC_FREEBSD_THREADS)
INCLUDES="$INCLUDES -pthread"
THREADLIBS=-pthread
;;
*-*-solaris*)
AC_DEFINE(GC_SOLARIS_THREADS)
AC_DEFINE(GC_SOLARIS_PTHREADS)
;;
*-*-irix*)
AC_DEFINE(GC_IRIX_THREADS)
;;
*-*-cygwin*)
AC_DEFINE(GC_WIN32_THREADS)
;;
*-*-darwin*)
AC_DEFINE(GC_DARWIN_THREADS)
AC_DEFINE(THREAD_LOCAL_ALLOC)
if test "${enable_parallel_mark}" = yes; then
AC_DEFINE(PARALLEL_MARK)
fi
;;
*-*-osf*)
AC_DEFINE(GC_OSF1_THREADS)
if test "${enable_parallel_mark}" = yes; then
AC_DEFINE(PARALLEL_MARK)
AC_DEFINE(THREAD_LOCAL_ALLOC)
# May want to enable it in other cases, too.
# Measurements havent yet been done.
fi
INCLUDES="$INCLUDES -pthread"
THREADLIBS="-lpthread -lrt"
;;
esac
;;
win32)
AC_DEFINE(GC_WIN32_THREADS)
dnl Old wine getenv may not return NULL for missing entry.
dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
;;
dgux386)
THREADS=dgux386
AC_MSG_RESULT($THREADLIBS)
# Use pthread GCC switch
THREADLIBS=-pthread
if test "${enable_parallel_mark}" = yes; then
AC_DEFINE(PARALLEL_MARK)
fi
AC_DEFINE(THREAD_LOCAL_ALLOC)
AC_DEFINE(GC_DGUX386_THREADS)
AC_DEFINE(DGUX_THREADS)
# Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
INCLUDES="-pthread $INCLUDES"
;;
aix)
THREADS=posix
THREADLIBS=-lpthread
AC_DEFINE(GC_AIX_THREADS)
AC_DEFINE(_REENTRANT)
;;
decosf1 | irix | mach | os2 | solaris | dce | vxworks)
AC_MSG_ERROR(thread package $THREADS not yet supported)
;;
*)
AC_MSG_ERROR($THREADS is an unknown thread package)
;;
esac
AC_SUBST(THREADLIBS)
case "$host" in
powerpc-*-darwin*)
powerpc_darwin=true
;;
esac
AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
# We never want libdl on darwin. It is a fake libdl that just ends up making
# dyld calls anyway
case "$host" in
*-*-darwin*) ;;
*)
AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
;;
esac
AC_SUBST(EXTRA_TEST_LIBS)
target_all=libgcjgc.la
AC_SUBST(target_all)
AC_SUBST(target_noncanonical)
dnl If the target is an eCos system, use the appropriate eCos
dnl I/O routines.
dnl FIXME: this should not be a local option but a global target
dnl system; at present there is no eCos target.
TARGET_ECOS="no"
AC_ARG_WITH(ecos,
[ --with-ecos enable runtime eCos target support],
TARGET_ECOS="$with_ecos"
)
addobjs=
addlibs=
addincludes=
addtests=
CXXINCLUDES=
case "$TARGET_ECOS" in
no)
;;
*)
AC_DEFINE(ECOS)
CXXINCLUDES="-I${TARGET_ECOS}/include"
addobjs="$addobjs ecos.lo"
;;
esac
if test "${enable_cplusplus}" = yes; then
addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
addtests="$addtests test_cpp"
fi
AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
AC_SUBST(CXX)
AC_SUBST(INCLUDES)
AC_SUBST(CXXINCLUDES)
# Configuration of shared libraries
#
AC_MSG_CHECKING(whether to build shared libraries)
AC_ENABLE_SHARED
case "$host" in
alpha-*-openbsd*)
enable_shared=no
AC_MSG_RESULT(no)
;;
*)
AC_MSG_RESULT(yes)
;;
esac
# Configuration of machine-dependent code
#
# We don't set NO_EXECUTE_PERMISSION by default because gcj (and
# anything else that creates trampolines in gc-allocated memory)
# always needs exec permission. The exceptions to this are IA-64 and
# some variations of Power PC, where trampolines don't contain
# executable code.
#
AC_MSG_CHECKING(which machine-dependent code should be used)
machdep=
case "$host" in
alpha*-*-openbsd*)
machdep="alpha_mach_dep.lo"
if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
fi
;;
alpha*-*-linux*)
machdep="alpha_mach_dep.lo"
;;
i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED)
;;
mipstx39-*-elf*)
machdep="mips_ultrix_mach_dep.lo"
AC_DEFINE(STACKBASE, __stackbase)
AC_DEFINE(DATASTART_IS_ETEXT)
;;
mips-dec-ultrix*)
machdep="mips_ultrix_mach-dep.lo"
;;
mips-nec-sysv*|mips-unknown-sysv*)
;;
mips*-*-linux*)
;;
mips-*-*)
machdep="mips_sgi_mach_dep.lo"
;;
sparc-*-netbsd*)
machdep="sparc_netbsd_mach_dep.lo"
;;
sparc-sun-solaris2.3)
machdep="sparc_mach_dep.lo"
AC_DEFINE(SUNOS53_SHARED_LIB)
;;
sparc-sun-solaris2.*)
machdep="sparc_mach_dep.lo"
;;
ia64-*-*)
AC_DEFINE(NO_EXECUTE_PERMISSION)
machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
;;
esac
if test x"$machdep" = x; then
AC_MSG_RESULT($machdep)
machdep="mach_dep.lo"
fi
addobjs="$addobjs $machdep"
AC_SUBST(addobjs)
AC_SUBST(addincludes)
AC_SUBST(addlibs)
AC_SUBST(addtests)
AC_PROG_LIBTOOL
#
# Check for AViiON Machines running DGUX
#
AC_MSG_CHECKING(if host is AViiON running DGUX)
ac_is_dgux=no
AC_CHECK_HEADER(sys/dg_sys_info.h,
[ac_is_dgux=yes;])
AC_MSG_RESULT($ac_is_dgux)
## :GOTCHA: we do not check anything but sys/dg_sys_info.h
if test $ac_is_dgux = yes; then
if test "$enable_full_debug" = "yes"; then
CFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
CXXFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
else
CFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
CXXFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
fi
AC_SUBST(CFLAGS)
AC_SUBST(CXXFLAGS)
fi
dnl We use these options to decide which functions to include.
AC_ARG_WITH(target-subdir,
[ --with-target-subdir=SUBDIR
configuring with a cross compiler])
AC_ARG_WITH(cross-host,
[ --with-cross-host=HOST configuring with a cross compiler])
dnl As of 4.13a2, the collector will not properly work on Solaris when
dnl built with gcc and -O. So we remove -O in the appropriate case.
dnl
AC_MSG_CHECKING(whether Solaris gcc optimization fix is necessary)
case "$host" in
sparc-sun-solaris2*|*aix*)
if test "$GCC" = yes; then
AC_MSG_RESULT(yes)
new_CFLAGS=
for i in $CFLAGS; do
case "$i" in
-O*)
;;
*)
new_CFLAGS="$new_CFLAGS $i"
;;
esac
done
CFLAGS="$new_CFLAGS"
else
AC_MSG_RESULT(no)
fi
;;
*) AC_MSG_RESULT(no) ;;
esac
dnl We need to override the top-level CFLAGS. This is how we do it.
MY_CFLAGS="$CFLAGS"
AC_SUBST(MY_CFLAGS)
dnl Include defines that have become de facto standard.
dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
AC_DEFINE(SILENT)
AC_DEFINE(NO_SIGNALS)
AC_DEFINE(ALL_INTERIOR_POINTERS)
dnl By default, make the library as general as possible.
AC_DEFINE(JAVA_FINALIZATION)
AC_DEFINE(GC_GCJ_SUPPORT)
AC_DEFINE(ATOMIC_UNCOLLECTABLE)
dnl This is something of a hack. When cross-compiling we turn off
dnl some functionality. These is only correct when targetting an
dnl embedded system. FIXME.
if test -n "${with_cross_host}"; then
AC_DEFINE(NO_SIGSET)
AC_DEFINE(NO_DEBUGGING)
fi
AC_ARG_ENABLE(full-debug,
[ --enable-full-debug include full support for pointer backtracing etc.],
[ if test "$enable_full_debug" = "yes"; then
AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
AC_DEFINE(KEEP_BACK_PTRS)
AC_DEFINE(DBG_HDRS_ALL)
case $host in
ia64-*-linux* )
AC_DEFINE(MAKE_BACK_GRAPH)
;;
x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
AC_DEFINE(MAKE_BACK_GRAPH)
AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
AC_DEFINE(SAVE_CALL_COUNT, 8)
;;
i[3456]86-*-dgux*)
AC_DEFINE(MAKE_BACK_GRAPH)
;;
esac ]
fi)
if test -n "$with_cross_host" &&
test x"$with_cross_host" != x"no"; then
toolexecdir='$(exec_prefix)/$(target_noncanonical)'
toolexeclibdir='$(toolexecdir)/lib'
else
toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
toolexeclibdir='$(libdir)'
fi
multi_os_directory=`$CC -print-multi-os-directory`
case $multi_os_directory in
.) ;; # Avoid trailing /.
*) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
esac
AC_SUBST(toolexecdir)
AC_SUBST(toolexeclibdir)
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
AC_OUTPUT(Makefile include/Makefile, [
dnl Put all the -I and -D options in a file.
echo "$INCLUDES $DEFS" > boehm-cflags
if test -n "$CONFIG_FILES"; then
LD="${ORIGINAL_LD_FOR_MULTILIBS}"
ac_file=Makefile . ${gc_basedir}/../config-ml.in
fi],
srcdir=${srcdir}
host=${host}
target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${multilib_arg} ${ac_configure_args}"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
gc_basedir=${gc_basedir}
CC="${CC}"
ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
DEFS="$DEFS"
INCLUDES="$INCLUDES"
)