1 # Copyright (c) 1999, 2000, 2001, 2002, 2003 by Red Hat, Inc. All rights reserved.
2 # Copyright 2004 Nathanael Nerode
4 # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
5 # OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
7 # Permission is hereby granted to use or copy this program
8 # for any purpose, provided the above notices are retained on all copies.
9 # Permission to modify the code and to distribute modified code is granted,
10 # provided the above notices are retained, and a notice that the code was
11 # modified is included with the above copyright notice.
13 # Original author: Tom Tromey
14 # Modified by Nathanael Nerode
16 dnl Process this file with autoconf to produce configure.
20 AC_CONFIG_SRCDIR(gcj_mlc.c)
21 # This works around the fact that libtool configuration may change LD
22 # for this particular configuration, but some shells, instead of
23 # keeping the changes in LD private, export them just because LD is
25 ORIGINAL_LD_FOR_MULTILIBS=$LD
27 AM_ENABLE_MULTILIB(, ..)
32 # Get the 'noncanonical' system names.
33 ACX_NONCANONICAL_TARGET
35 # This works around an automake problem.
36 mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
37 AC_SUBST(mkinstalldirs)
39 AM_INIT_AUTOMAKE(gc, 6.6, no-define)
41 # The autoconf 2.5x version of the no-executables hack.
44 # Yak. We must force CC and CXX to /not/ be precious variables; otherwise
45 # the wrong, non-multilib-adjusted value will be used in multilibs.
46 # As a side effect, we have to subst CFLAGS and CXXFLAGS ourselves.
48 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
49 m4_define([_AC_ARG_VAR_PRECIOUS],[])
52 m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
59 # Newer automakes demand CCAS and CCASFLAGS.
61 : ${CCASFLAGS='$(CFLAGS)'}
67 AC_CHECK_TOOL(RANLIB, ranlib, :)
73 . ${srcdir}/configure.host
76 /* | [A-Za-z]:[/\\]*) gc_flagbasedir=${gc_basedir} ;;
77 *) gc_flagbasedir='$(top_builddir)/'${gc_basedir} ;;
80 gc_cflags="${gc_cflags} -Iinclude -I"'$(top_builddir)'"/./targ-include -I${gc_flagbasedir}/libc/include"
83 gc_cflags="${gc_cflags} -I${gc_flagbasedir}/../winsup/include"
87 dnl gc_cflags="${gc_cflags} -fno-builtin"
89 GC_CFLAGS=${gc_cflags}
94 dnl We use these options to decide which functions to include.
95 AC_ARG_WITH(target-subdir,
96 [ --with-target-subdir=SUBDIR
97 configuring with a cross compiler])
98 AC_ARG_WITH(cross-host,
99 [ --with-cross-host=HOST configuring with a cross compiler])
101 AC_MSG_CHECKING([for thread model used by GCC])
102 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
103 if test -z "$THREADS"; then
106 AC_MSG_RESULT([$THREADS])
108 AC_ARG_ENABLE(parallel-mark,
109 [ --enable-parallel-mark parallelize marking and free list construction],
112 AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
117 AM_CPPFLAGS="-I`cd $srcdir && ${PWDCMD-pwd}`/include"
123 posix | posix95 | pthreads)
127 x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
128 AC_DEFINE(GC_LINUX_THREADS,1,[support for Xavier Leroy's Linux threads])
129 AC_DEFINE(_REENTRANT,1,[Use reentrant code])
130 if test "${enable_parallel_mark}" = yes; then
131 AC_DEFINE(PARALLEL_MARK,1,[allow the marker to run in multiple threads])
133 AC_DEFINE(THREAD_LOCAL_ALLOC,1,[define GC_local_malloc() & GC_local_malloc_atomic()])
136 AC_DEFINE(GC_LINUX_THREADS,1)
137 AC_DEFINE(_REENTRANT,1)
140 AC_DEFINE(GC_AIX_THREADS,1,[support AIX threads])
141 AC_DEFINE(_REENTRANT,1)
144 AC_MSG_WARN("Only HP/UX 11 threads are supported.")
145 AC_DEFINE(GC_HPUX_THREADS,1,[enables support for HP/UX 11 pthreads])
146 AC_DEFINE(_POSIX_C_SOURCE,199506L,[POSIX version of C Source])
147 if test "${enable_parallel_mark}" = yes; then
148 AC_DEFINE(PARALLEL_MARK,1)
150 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
151 THREADLIBS="-lpthread -lrt"
154 AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
155 AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])
156 AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
160 AC_DEFINE(GC_SOLARIS_THREADS,1,[support for Solaris (thr_) threads])
161 AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
164 AC_DEFINE(GC_IRIX_THREADS,1,[support for Irix pthreads])
167 AC_DEFINE(GC_WIN32_THREADS,1,[support for win32 threads])
170 AC_DEFINE(GC_DARWIN_THREADS,1,[support for Mac OS X pthreads])
171 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
172 if test "${enable_parallel_mark}" = yes; then
173 AC_DEFINE(PARALLEL_MARK,1)
177 AC_DEFINE(GC_OSF1_THREADS,1,[support for Tru64 pthreads])
178 if test "${enable_parallel_mark}" = yes; then
179 AC_DEFINE(PARALLEL_MARK,1)
180 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
181 # May want to enable it in other cases, too.
182 # Measurements havent yet been done.
184 AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
185 THREADLIBS="-lpthread -lrt"
190 AC_DEFINE(GC_WIN32_THREADS,1)
191 dnl Old wine getenv may not return NULL for missing entry.
192 dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
196 AC_MSG_RESULT($THREADLIBS)
197 # Use pthread GCC switch
199 if test "${enable_parallel_mark}" = yes; then
200 AC_DEFINE(PARALLEL_MARK,1)
202 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
203 AC_DEFINE(GC_DGUX386_THREADS,1,[support for DB/UX on I386 threads])
204 AC_DEFINE(DGUX_THREADS,1,[No description])
205 # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
206 AM_CPPFLAGS="-pthread $AM_CPPFLAGS"
211 AC_DEFINE(GC_AIX_THREADS,1)
212 AC_DEFINE(_REENTRANT,1)
214 decosf1 | irix | mach | os2 | solaris | dce | vxworks)
215 AC_MSG_ERROR(thread package $THREADS not yet supported)
218 AC_MSG_ERROR($THREADS is an unknown thread package)
228 AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
230 # We never want libdl on darwin. It is a fake libdl that just ends up making
235 AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
239 AC_SUBST(EXTRA_TEST_LIBS)
241 target_all=libgcjgc.la
244 dnl If the target is an eCos system, use the appropriate eCos
246 dnl FIXME: this should not be a local option but a global target
247 dnl system; at present there is no eCos target.
250 [ --with-ecos enable runtime eCos target support],
251 TARGET_ECOS="$with_ecos"
258 case "$TARGET_ECOS" in
262 AC_DEFINE(ECOS,1,[Target is ECOS])
263 AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"
264 addobjs="$addobjs ecos.lo"
268 if test "${enable_cplusplus}" = yes; then
269 addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
270 addtests="$addtests test_cpp"
273 AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
277 AC_SUBST(AM_CPPFLAGS)
279 # Configuration of shared libraries
281 AC_MSG_CHECKING(whether to build shared libraries)
294 # Configuration of machine-dependent code
296 # We don't set NO_EXECUTE_PERMISSION by default because gcj (and
297 # anything else that creates trampolines in gc-allocated memory)
298 # always needs exec permission. The exceptions to this are IA-64 and
299 # some variations of Power PC, where trampolines don't contain
302 AC_MSG_CHECKING(which machine-dependent code should be used)
306 machdep="alpha_mach_dep.lo"
307 if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
308 AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
312 machdep="alpha_mach_dep.lo"
314 i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
315 AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED,1,[PROC_VDB in Solaris 2.5 gives wrong values for dirty bits])
318 machdep="mips_ultrix_mach_dep.lo"
319 AC_DEFINE(STACKBASE, __stackbase,[No description])
320 AC_DEFINE(DATASTART_IS_ETEXT,1,[No description])
323 machdep="mips_ultrix_mach-dep.lo"
325 mips-nec-sysv*|mips-unknown-sysv*)
330 machdep="mips_sgi_mach_dep.lo"
333 machdep="sparc_netbsd_mach_dep.lo"
335 sparc-sun-solaris2.3)
336 machdep="sparc_mach_dep.lo"
337 AC_DEFINE(SUNOS53_SHARED_LIB,1,[Avoid Solaris 5.3 dynamic library bug])
339 sparc*-sun-solaris2.*)
340 machdep="sparc_mach_dep.lo"
343 AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])
344 machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
347 if test x"$machdep" = x; then
348 AC_MSG_RESULT($machdep)
349 machdep="mach_dep.lo"
351 addobjs="$addobjs $machdep"
353 AC_SUBST(addincludes)
358 # Check for AViiON Machines running DGUX
360 AC_MSG_CHECKING(if host is AViiON running DGUX)
362 AC_CHECK_HEADER(sys/dg_sys_info.h,
365 AC_MSG_RESULT($ac_is_dgux)
366 ## :GOTCHA: we do not check anything but sys/dg_sys_info.h
367 if test $ac_is_dgux = yes; then
368 if test "$enable_full_debug" = "yes"; then
369 CFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
370 CXXFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
372 CFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
373 CXXFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
379 dnl As of 4.13a2, the collector will not properly work on Solaris when
380 dnl built with gcc and -O. So we remove -O in the appropriate case.
381 dnl Not needed anymore on Solaris.
382 AC_MSG_CHECKING(whether Solaris gcc optimization fix is necessary)
385 if test "$GCC" = yes; then
393 new_CFLAGS="$new_CFLAGS $i"
402 *) AC_MSG_RESULT(no) ;;
405 dnl We need to override the top-level CFLAGS. This is how we do it.
409 dnl Include defines that have become de facto standard.
410 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
411 AC_DEFINE(SILENT,1,[disables statistics printing])
412 AC_DEFINE(NO_SIGNALS,1,[does not disable signals])
413 AC_DEFINE(ALL_INTERIOR_POINTERS,1,[allows all pointers to the interior of objects to be recognized])
415 dnl By default, make the library as general as possible.
416 AC_DEFINE(JAVA_FINALIZATION,1,[make it somewhat safer to finalize objects out of order])
417 AC_DEFINE(GC_GCJ_SUPPORT,1,[include support for gcj])
418 AC_DEFINE(ATOMIC_UNCOLLECTABLE,1,[include code for GC_malloc_atomic_uncollectable])
420 dnl This is something of a hack. When cross-compiling we turn off
421 dnl some functionality. These is only correct when targetting an
422 dnl embedded system. FIXME.
423 if test -n "${with_cross_host}"; then
424 AC_DEFINE(NO_SIGSET,1,[use empty GC_disable_signals and GC_enable_signals])
425 AC_DEFINE(NO_DEBUGGING,1,[removes GC_dump])
428 AC_ARG_ENABLE(gc-debug,
429 [ --enable-gc-debug include full support for pointer backtracing etc.],
430 [ if test "$enable_gc_debug" = "yes"; then
431 AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
432 AC_DEFINE(KEEP_BACK_PTRS,1,[Add code to save back pointers])
433 AC_DEFINE(DBG_HDRS_ALL,1,[Make sure that all objects have debug headers])
436 AC_DEFINE(MAKE_BACK_GRAPH,1,[Enable GC_PRINT_BACK_HEIGHT environment variable])
438 x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
439 AC_DEFINE(MAKE_BACK_GRAPH,1)
440 AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
441 AC_DEFINE(SAVE_CALL_COUNT, 8, [number of call frames saved with objects allocated through the debugging interface])
444 AC_DEFINE(MAKE_BACK_GRAPH,1)
449 if test "${gc_use_mmap}" = "yes"; then
450 AC_DEFINE(USE_MMAP, 1, [use MMAP instead of sbrk to get new memory])
456 cat > conftest.c <<EOF
458 void *tf (void *arg) { (void) arg; return NULL; }
459 int main (void) { pthread_t th; pthread_create (&th, NULL, tf, NULL); return 0; }
461 if $CC $CFLAGS -pthread -o conftest conftest.c > /dev/null 2>&1; then
462 symver=`readelf -s conftest 2> /dev/null | sed -n '/UND pthread_create@/{s/^.*@//;s/ .*$//;p;q}'`
464 rm -f conftest conftest.c
467 if test -n "$symver"; then
468 AC_DEFINE_UNQUOTED(GC_PTHREAD_SYM_VERSION, "$symver", [symbol version of pthread_create])
472 if test -n "$with_cross_host" &&
473 test x"$with_cross_host" != x"no"; then
474 toolexecdir='$(exec_prefix)/$(target_noncanonical)'
475 toolexeclibdir='$(toolexecdir)/lib'
477 toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
478 toolexeclibdir='$(libdir)'
480 multi_os_directory=`$CC -print-multi-os-directory`
481 case $multi_os_directory in
482 .) ;; # Avoid trailing /.
483 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
485 AC_SUBST(toolexecdir)
486 AC_SUBST(toolexeclibdir)
488 if test "${multilib}" = "yes"; then
489 multilib_arg="--enable-multilib"
494 AC_CONFIG_HEADERS([include/gc_config.h include/gc_ext_config.h])
496 AC_CONFIG_FILES(Makefile include/Makefile)