1 # Copyright (c) 1999, 2000, 2001, 2002, 2003, 2006 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 POSIX 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 "${enable_parallel_mark}" = yes; then
148 AC_DEFINE(PARALLEL_MARK,1)
150 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
151 THREADLIBS="-lpthread -lrt"
152 # HPUX needs REENTRANT for the _r calls.
153 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
156 AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
159 AC_DEFINE(GC_FREEBSD_THREADS)
160 INCLUDES="$INCLUDES -pthread"
161 THREADDLLIBS=-pthread
162 AC_DEFINE(_REENTRANT)
163 if test "${enable_parallel_mark}" = yes; then
164 AC_DEFINE(PARALLEL_MARK)
166 AC_DEFINE(THREAD_LOCAL_ALLOC)
167 AC_DEFINE(USE_COMPILER_TLS, 1,[use tls for boehm])
170 AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
171 AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])
172 AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
176 AC_DEFINE(GC_SOLARIS_THREADS,1,[support for Solaris (thr_) threads])
177 AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
180 AC_DEFINE(GC_IRIX_THREADS,1,[support for Irix pthreads])
183 AC_DEFINE(GC_WIN32_THREADS,1,[support for win32 threads])
186 AC_DEFINE(GC_DARWIN_THREADS,1,[support for Mac OS X pthreads])
187 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
188 if test "${enable_parallel_mark}" = yes; then
189 AC_DEFINE(PARALLEL_MARK,1)
193 AC_DEFINE(GC_OSF1_THREADS,1,[support for Tru64 pthreads])
194 if test "${enable_parallel_mark}" = yes; then
195 AC_DEFINE(PARALLEL_MARK,1)
196 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
197 # May want to enable it in other cases, too.
198 # Measurements havent yet been done.
200 AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
201 THREADLIBS="-lpthread -lrt"
206 AC_DEFINE(GC_WIN32_THREADS,1)
207 dnl Old wine getenv may not return NULL for missing entry.
208 dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
212 AC_MSG_RESULT($THREADLIBS)
213 # Use pthread GCC switch
215 if test "${enable_parallel_mark}" = yes; then
216 AC_DEFINE(PARALLEL_MARK,1)
218 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
219 AC_DEFINE(GC_DGUX386_THREADS,1,[support for DB/UX on I386 threads])
220 AC_DEFINE(DGUX_THREADS,1,[No description])
221 # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
222 AM_CPPFLAGS="-pthread $AM_CPPFLAGS"
227 AC_DEFINE(GC_AIX_THREADS,1)
228 AC_DEFINE(_REENTRANT,1)
230 decosf1 | irix | mach | os2 | solaris | dce | vxworks)
231 AC_MSG_ERROR(thread package $THREADS not yet supported)
234 AC_MSG_ERROR($THREADS is an unknown thread package)
244 AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
246 # Darwin needs a few extra special tests to deal with variation in the
250 AC_CHECK_MEMBER(ppc_thread_state_t.r0,
251 AC_DEFINE(HAS_PPC_THREAD_STATE_R0,,[ppc_thread_state_t has field r0]),,
252 [#include <mach/thread_status.h>])
253 AC_CHECK_MEMBER(ppc_thread_state_t.__r0,
254 AC_DEFINE(HAS_PPC_THREAD_STATE___R0,,dnl
255 [ppc_thread_state_t has field __r0]),,
256 [#include <mach/thread_status.h>])
257 AC_CHECK_MEMBER(ppc_thread_state64_t.r0,
258 AC_DEFINE(HAS_PPC_THREAD_STATE64_R0,,dnl
259 [ppc_thread_state64_t has field r0]),,
260 [#include <mach/thread_status.h>])
261 AC_CHECK_MEMBER(ppc_thread_state64_t.__r0,
262 AC_DEFINE(HAS_PPC_THREAD_STATE64___R0,,dnl
263 [ppc_thread_state64_t has field __r0]),,
264 [#include <mach/thread_status.h>])
267 AC_CHECK_MEMBER(i386_thread_state_t.eax,
268 AC_DEFINE(HAS_I386_THREAD_STATE_EAX,,dnl
269 [i386_thread_state_t has field eax]),,
270 [#include <sys/cdefs.h>
271 #include <mach/thread_status.h>])
272 AC_CHECK_MEMBER(i386_thread_state_t.__eax,
273 AC_DEFINE(HAS_I386_THREAD_STATE___EAX,,dnl
274 [i386_thread_state_t has field __eax]),,
275 [#include <sys/cdefs.h>
276 #include <mach/thread_status.h>])
281 # We never want libdl on darwin. It is a fake libdl that just ends up making
286 AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
290 AC_SUBST(EXTRA_TEST_LIBS)
292 target_all=libgcjgc.la
295 dnl If the target is an eCos system, use the appropriate eCos
297 dnl FIXME: this should not be a local option but a global target
298 dnl system; at present there is no eCos target.
301 [ --with-ecos enable runtime eCos target support],
302 TARGET_ECOS="$with_ecos"
309 case "$TARGET_ECOS" in
313 AC_DEFINE(ECOS,1,[Target is ECOS])
314 AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"
315 addobjs="$addobjs ecos.lo"
319 if test "${enable_cplusplus}" = yes; then
320 addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
321 addtests="$addtests test_cpp"
324 AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
328 AC_SUBST(AM_CPPFLAGS)
330 # Configuration of shared libraries
332 AC_MSG_CHECKING(whether to build shared libraries)
345 # Checks for pthreads functions
348 LIBS="$LIBS $THREADLIBS"
349 AC_CHECK_FUNCS([pthread_getattr_np])
352 # Configuration of machine-dependent code
354 # We don't set NO_EXECUTE_PERMISSION by default because gcj (and
355 # anything else that creates trampolines in gc-allocated memory)
356 # always needs exec permission. The exceptions to this are IA-64 and
357 # some variations of Power PC, where trampolines don't contain
360 AC_MSG_CHECKING(which machine-dependent code should be used)
364 machdep="alpha_mach_dep.lo"
365 if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
366 AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
370 machdep="alpha_mach_dep.lo"
372 i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
373 AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED,1,[PROC_VDB in Solaris 2.5 gives wrong values for dirty bits])
376 machdep="mips_ultrix_mach_dep.lo"
377 AC_DEFINE(STACKBASE, __stackbase,[No description])
378 AC_DEFINE(DATASTART_IS_ETEXT,1,[No description])
381 machdep="mips_ultrix_mach-dep.lo"
383 mips-nec-sysv*|mips-unknown-sysv*)
388 machdep="mips_sgi_mach_dep.lo"
391 machdep="sparc_netbsd_mach_dep.lo"
393 sparc-sun-solaris2.3)
394 machdep="sparc_mach_dep.lo"
395 AC_DEFINE(SUNOS53_SHARED_LIB,1,[Avoid Solaris 5.3 dynamic library bug])
397 sparc*-sun-solaris2.*)
398 machdep="sparc_mach_dep.lo"
401 AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])
402 machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
405 if test x"$machdep" = x; then
406 AC_MSG_RESULT($machdep)
407 machdep="mach_dep.lo"
409 addobjs="$addobjs $machdep"
411 AC_SUBST(addincludes)
416 # Check for AViiON Machines running DGUX
418 AC_MSG_CHECKING(if host is AViiON running DGUX)
420 AC_CHECK_HEADER(sys/dg_sys_info.h,
423 AC_MSG_RESULT($ac_is_dgux)
424 ## :GOTCHA: we do not check anything but sys/dg_sys_info.h
425 if test $ac_is_dgux = yes; then
426 if test "$enable_full_debug" = "yes"; then
427 CFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
428 CXXFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
430 CFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
431 CXXFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
437 dnl As of 4.13a2, the collector will not properly work on Solaris when
438 dnl built with gcc and -O. So we remove -O in the appropriate case.
439 dnl Not needed anymore on Solaris.
440 AC_MSG_CHECKING(whether Solaris gcc optimization fix is necessary)
443 if test "$GCC" = yes; then
451 new_CFLAGS="$new_CFLAGS $i"
460 *) AC_MSG_RESULT(no) ;;
463 dnl We need to override the top-level CFLAGS. This is how we do it.
467 dnl Include defines that have become de facto standard.
468 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
469 AC_DEFINE(SILENT,1,[disables statistics printing])
470 AC_DEFINE(NO_SIGNALS,1,[does not disable signals])
471 AC_DEFINE(ALL_INTERIOR_POINTERS,1,[allows all pointers to the interior of objects to be recognized])
473 dnl By default, make the library as general as possible.
474 AC_DEFINE(JAVA_FINALIZATION,1,[make it somewhat safer to finalize objects out of order])
475 AC_DEFINE(GC_GCJ_SUPPORT,1,[include support for gcj])
476 AC_DEFINE(ATOMIC_UNCOLLECTABLE,1,[include code for GC_malloc_atomic_uncollectable])
478 dnl This is something of a hack. When cross-compiling we turn off
479 dnl some functionality. These is only correct when targetting an
480 dnl embedded system. FIXME.
481 if test -n "${with_cross_host}"; then
482 AC_DEFINE(NO_SIGSET,1,[use empty GC_disable_signals and GC_enable_signals])
483 AC_DEFINE(NO_DEBUGGING,1,[removes GC_dump])
486 AC_ARG_ENABLE(gc-debug,
487 [ --enable-gc-debug include full support for pointer backtracing etc.],
488 [ if test "$enable_gc_debug" = "yes"; then
489 AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
490 AC_DEFINE(KEEP_BACK_PTRS,1,[Add code to save back pointers])
491 AC_DEFINE(DBG_HDRS_ALL,1,[Make sure that all objects have debug headers])
494 AC_DEFINE(MAKE_BACK_GRAPH,1,[Enable GC_PRINT_BACK_HEIGHT environment variable])
496 x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
497 AC_DEFINE(MAKE_BACK_GRAPH,1)
498 AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
499 AC_DEFINE(SAVE_CALL_COUNT, 8, [number of call frames saved with objects allocated through the debugging interface])
502 AC_DEFINE(MAKE_BACK_GRAPH,1)
507 if test "${gc_use_mmap}" = "yes"; then
508 AC_DEFINE(USE_MMAP, 1, [use MMAP instead of sbrk to get new memory])
511 if test -n "$with_cross_host" &&
512 test x"$with_cross_host" != x"no"; then
513 toolexecdir='$(exec_prefix)/$(target_noncanonical)'
514 toolexeclibdir='$(toolexecdir)/lib'
516 toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
517 toolexeclibdir='$(libdir)'
519 multi_os_directory=`$CC -print-multi-os-directory`
520 case $multi_os_directory in
521 .) ;; # Avoid trailing /.
522 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
524 AC_SUBST(toolexecdir)
525 AC_SUBST(toolexeclibdir)
527 if test "${multilib}" = "yes"; then
528 multilib_arg="--enable-multilib"
533 AC_CONFIG_HEADERS([include/gc_config.h include/gc_ext_config.h])
535 AC_CONFIG_FILES(Makefile include/Makefile)