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_force([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${gc_flagbasedir}/../winsup/include"
87 dnl Add for mingw targets GC_BUILD option
90 gc_cflags="${gc_cflags} -DGC_BUILD=1"
94 dnl gc_cflags="${gc_cflags} -fno-builtin"
96 GC_CFLAGS=${gc_cflags}
101 dnl We use these options to decide which functions to include.
102 AC_ARG_WITH(target-subdir,
103 [ --with-target-subdir=SUBDIR
104 configuring with a cross compiler])
105 AC_ARG_WITH(cross-host,
106 [ --with-cross-host=HOST configuring with a cross compiler])
108 AC_MSG_CHECKING([for thread model used by GCC])
109 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
110 if test -z "$THREADS"; then
113 AC_MSG_RESULT([$THREADS])
115 AC_ARG_ENABLE(parallel-mark,
116 [ --enable-parallel-mark parallelize marking and free list construction],
119 AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
124 AM_CPPFLAGS="-I`cd $srcdir && ${PWDCMD-pwd}`/include"
130 posix | posix95 | pthreads)
134 x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
135 AC_DEFINE(GC_LINUX_THREADS,1,[support for Xavier Leroy's Linux threads])
136 AC_DEFINE(_REENTRANT,1,[Use reentrant code])
137 if test "${enable_parallel_mark}" = yes; then
138 AC_DEFINE(PARALLEL_MARK,1,[allow the marker to run in multiple threads])
140 AC_DEFINE(THREAD_LOCAL_ALLOC,1,[define GC_local_malloc() & GC_local_malloc_atomic()])
143 AC_DEFINE(GC_LINUX_THREADS,1)
144 AC_DEFINE(_REENTRANT,1)
147 AC_DEFINE(GC_AIX_THREADS,1,[support AIX threads])
148 AC_DEFINE(_REENTRANT,1)
151 AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
152 AC_DEFINE(GC_HPUX_THREADS,1,[enables support for HP/UX 11 pthreads])
153 AC_DEFINE(_POSIX_C_SOURCE,199506L,[POSIX version of C Source])
154 if test "${enable_parallel_mark}" = yes; then
155 AC_DEFINE(PARALLEL_MARK,1)
157 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
158 THREADLIBS="-lpthread -lrt"
159 # HPUX needs REENTRANT for the _r calls.
160 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
163 AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
166 AC_DEFINE(GC_FREEBSD_THREADS)
167 INCLUDES="$INCLUDES -pthread"
168 THREADDLLIBS=-pthread
169 AC_DEFINE(_REENTRANT)
170 if test "${enable_parallel_mark}" = yes; then
171 AC_DEFINE(PARALLEL_MARK)
173 AC_DEFINE(THREAD_LOCAL_ALLOC)
174 AC_DEFINE(USE_COMPILER_TLS, 1,[use tls for boehm])
177 AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
178 AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])
179 AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
183 AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
184 # Need to use alternate thread library, otherwise gctest hangs
186 multi_os_directory=`$CC -print-multi-os-directory`
187 THREADLIBS="-L/usr/lib/lwp/$multi_os_directory \
188 -R/usr/lib/lwp/$multi_os_directory -lpthread -lthread -lrt"
191 AC_DEFINE(GC_IRIX_THREADS,1,[support for Irix pthreads])
194 AC_DEFINE(GC_WIN32_THREADS,1,[support for win32 threads])
197 AC_DEFINE(GC_DARWIN_THREADS,1,[support for Mac OS X pthreads])
198 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
199 if test "${enable_parallel_mark}" = yes; then
200 AC_DEFINE(PARALLEL_MARK,1)
204 AC_DEFINE(GC_OSF1_THREADS,1,[support for Tru64 pthreads])
205 if test "${enable_parallel_mark}" = yes; then
206 AC_DEFINE(PARALLEL_MARK,1)
207 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
208 # May want to enable it in other cases, too.
209 # Measurements havent yet been done.
211 AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
212 THREADLIBS="-lpthread -lrt"
217 AC_DEFINE(GC_WIN32_THREADS,1)
218 dnl Old wine getenv may not return NULL for missing entry.
219 dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
223 AC_MSG_RESULT($THREADLIBS)
224 # Use pthread GCC switch
226 if test "${enable_parallel_mark}" = yes; then
227 AC_DEFINE(PARALLEL_MARK,1)
229 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
230 AC_DEFINE(GC_DGUX386_THREADS,1,[support for DB/UX on I386 threads])
231 AC_DEFINE(DGUX_THREADS,1,[No description])
232 # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
233 AM_CPPFLAGS="-pthread $AM_CPPFLAGS"
238 AC_DEFINE(GC_AIX_THREADS,1)
239 AC_DEFINE(_REENTRANT,1)
241 decosf1 | irix | mach | os2 | solaris | dce | vxworks)
242 AC_MSG_ERROR(thread package $THREADS not yet supported)
245 AC_MSG_ERROR($THREADS is an unknown thread package)
255 AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
257 # Darwin needs a few extra special tests to deal with variation in the
261 AC_CHECK_MEMBER(ppc_thread_state_t.r0,
262 AC_DEFINE(HAS_PPC_THREAD_STATE_R0,1,
263 [ppc_thread_state_t has field r0]),,
264 [#include <mach/thread_status.h>])
265 AC_CHECK_MEMBER(ppc_thread_state_t.__r0,
266 AC_DEFINE(HAS_PPC_THREAD_STATE___R0,1,dnl
267 [ppc_thread_state_t has field __r0]),,
268 [#include <mach/thread_status.h>])
269 AC_CHECK_MEMBER(ppc_thread_state64_t.r0,
270 AC_DEFINE(HAS_PPC_THREAD_STATE64_R0,1,dnl
271 [ppc_thread_state64_t has field r0]),,
272 [#include <mach/thread_status.h>])
273 AC_CHECK_MEMBER(ppc_thread_state64_t.__r0,
274 AC_DEFINE(HAS_PPC_THREAD_STATE64___R0,1,dnl
275 [ppc_thread_state64_t has field __r0]),,
276 [#include <mach/thread_status.h>])
279 AC_CHECK_MEMBER(x86_thread_state32_t.eax,
280 AC_DEFINE(HAS_X86_THREAD_STATE32_EAX,1,dnl
281 [x86_thread_state32_t has field eax]),,
282 [#include <sys/cdefs.h>
283 #include <mach/thread_status.h>])
284 AC_CHECK_MEMBER(x86_thread_state32_t.__eax,
285 AC_DEFINE(HAS_X86_THREAD_STATE32___EAX,1,dnl
286 [x86_thread_state32_t has field __eax]),,
287 [#include <sys/cdefs.h>
288 #include <mach/thread_status.h>])
291 AC_CHECK_MEMBER(x86_thread_state64_t.rax,
292 AC_DEFINE(HAS_X86_THREAD_STATE64_RAX,1,dnl
293 [x86_thread_state64_t has field rax]),,
294 [#include <sys/cdefs.h>
295 #include <mach/thread_status.h>])
296 AC_CHECK_MEMBER(x86_thread_state64_t.__rax,
297 AC_DEFINE(HAS_X86_THREAD_STATE64___RAX,1,dnl
298 [x86_thread_state64_t has field __rax]),,
299 [#include <sys/cdefs.h>
300 #include <mach/thread_status.h>])
305 # We never want libdl on darwin. It is a fake libdl that just ends up making
310 AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
314 # extra LD Flags which are required for targets
317 extra_ldflags_libgc=-Wl,-single_module
320 AC_SUBST(extra_ldflags_libgc)
322 AC_SUBST(EXTRA_TEST_LIBS)
324 target_all=libgcjgc.la
327 dnl If the target is an eCos system, use the appropriate eCos
329 dnl FIXME: this should not be a local option but a global target
330 dnl system; at present there is no eCos target.
333 [ --with-ecos enable runtime eCos target support],
334 TARGET_ECOS="$with_ecos"
341 case "$TARGET_ECOS" in
345 AC_DEFINE(ECOS,1,[Target is ECOS])
346 AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"
347 addobjs="$addobjs ecos.lo"
351 if test "${enable_cplusplus}" = yes; then
352 addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
353 addtests="$addtests test_cpp"
356 AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
360 AC_SUBST(AM_CPPFLAGS)
362 # Configuration of shared libraries
364 AC_MSG_CHECKING(whether to build shared libraries)
377 # Checks for pthreads functions
380 LIBS="$LIBS $THREADLIBS"
381 AC_CHECK_FUNCS([pthread_getattr_np])
384 # Configuration of machine-dependent code
386 # Set NO_EXECUTE_PERMISSION by default because gcj already uses
387 # ffi_closure_{alloc,free} which takes care of allocating trampolines
388 # in executable memory.
390 AC_MSG_CHECKING(which machine-dependent code should be used)
394 machdep="alpha_mach_dep.lo"
395 if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
396 AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
400 machdep="alpha_mach_dep.lo"
402 i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
403 AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED,1,[PROC_VDB in Solaris 2.5 gives wrong values for dirty bits])
406 machdep="mips_ultrix_mach_dep.lo"
407 AC_DEFINE(STACKBASE, __stackbase,[No description])
408 AC_DEFINE(DATASTART_IS_ETEXT,1,[No description])
411 machdep="mips_ultrix_mach-dep.lo"
413 mips-nec-sysv*|mips-unknown-sysv*)
418 machdep="mips_sgi_mach_dep.lo"
421 machdep="sparc_netbsd_mach_dep.lo"
423 sparc-sun-solaris2.3)
424 machdep="sparc_mach_dep.lo"
425 AC_DEFINE(SUNOS53_SHARED_LIB,1,[Avoid Solaris 5.3 dynamic library bug])
427 sparc*-sun-solaris2.*)
428 machdep="sparc_mach_dep.lo"
431 machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
434 AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])
435 if test x"$machdep" = x; then
436 AC_MSG_RESULT($machdep)
437 machdep="mach_dep.lo"
439 addobjs="$addobjs $machdep"
441 AC_SUBST(addincludes)
446 # Check for AViiON Machines running DGUX
448 AC_MSG_CHECKING(if host is AViiON running DGUX)
450 AC_CHECK_HEADER(sys/dg_sys_info.h,
453 AC_MSG_RESULT($ac_is_dgux)
454 ## :GOTCHA: we do not check anything but sys/dg_sys_info.h
455 if test $ac_is_dgux = yes; then
456 if test "$enable_full_debug" = "yes"; then
457 CFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
458 CXXFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
460 CFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
461 CXXFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
467 dnl As of 4.13a2, the collector will not properly work on Solaris when
468 dnl built with gcc and -O. So we remove -O in the appropriate case.
469 dnl Not needed anymore on Solaris.
470 AC_MSG_CHECKING(whether Solaris gcc optimization fix is necessary)
473 if test "$GCC" = yes; then
481 new_CFLAGS="$new_CFLAGS $i"
490 *) AC_MSG_RESULT(no) ;;
493 dnl We need to override the top-level CFLAGS. This is how we do it.
497 dnl Include defines that have become de facto standard.
498 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
499 AC_DEFINE(SILENT,1,[disables statistics printing])
500 AC_DEFINE(NO_SIGNALS,1,[does not disable signals])
501 AC_DEFINE(ALL_INTERIOR_POINTERS,1,[allows all pointers to the interior of objects to be recognized])
503 dnl By default, make the library as general as possible.
504 AC_DEFINE(JAVA_FINALIZATION,1,[make it somewhat safer to finalize objects out of order])
505 AC_DEFINE(GC_GCJ_SUPPORT,1,[include support for gcj])
506 AC_DEFINE(ATOMIC_UNCOLLECTABLE,1,[include code for GC_malloc_atomic_uncollectable])
508 AC_ARG_ENABLE(gc-debug,
509 [ --enable-gc-debug include full support for pointer backtracing etc.],
510 [ if test "$enable_gc_debug" = "yes"; then
511 AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
512 AC_DEFINE(KEEP_BACK_PTRS,1,[Add code to save back pointers])
513 AC_DEFINE(DBG_HDRS_ALL,1,[Make sure that all objects have debug headers])
516 AC_DEFINE(MAKE_BACK_GRAPH,1,[Enable GC_PRINT_BACK_HEIGHT environment variable])
518 x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
519 AC_DEFINE(MAKE_BACK_GRAPH,1)
520 AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
521 AC_DEFINE(SAVE_CALL_COUNT, 8, [number of call frames saved with objects allocated through the debugging interface])
524 AC_DEFINE(MAKE_BACK_GRAPH,1)
529 if test "${gc_use_mmap}" = "yes"; then
530 AC_DEFINE(USE_MMAP, 1, [use MMAP instead of sbrk to get new memory])
533 if test -n "$with_cross_host" &&
534 test x"$with_cross_host" != x"no"; then
535 toolexecdir='$(exec_prefix)/$(target_noncanonical)'
536 toolexeclibdir='$(toolexecdir)/lib'
538 toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
539 toolexeclibdir='$(libdir)'
541 multi_os_directory=`$CC -print-multi-os-directory`
542 case $multi_os_directory in
543 .) ;; # Avoid trailing /.
544 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
546 AC_SUBST(toolexecdir)
547 AC_SUBST(toolexeclibdir)
549 if test "${multilib}" = "yes"; then
550 multilib_arg="--enable-multilib"
555 AC_CONFIG_HEADERS([include/gc_config.h include/gc_ext_config.h])
557 AC_CONFIG_FILES(Makefile include/Makefile threads.mk)