1 # Copyright (c) 1999-2001 by Red Hat, Inc. All rights reserved.
3 # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
4 # OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
6 # Permission is hereby granted to use or copy this program
7 # for any purpose, provided the above notices are retained on all copies.
8 # Permission to modify the code and to distribute modified code is granted,
9 # provided the above notices are retained, and a notice that the code was
10 # modified is included with the above copyright notice.
12 # Original author: Tom Tromey
14 dnl Process this file with autoconf to produce configure.
18 dnl Can't be done in GC_CONFIGURE because that confuses automake.
27 dnl We use these options to decide which functions to include.
28 AC_ARG_WITH(target-subdir,
29 [ --with-target-subdir=SUBDIR
30 configuring with a cross compiler])
31 AC_ARG_WITH(cross-host,
32 [ --with-cross-host=HOST configuring with a cross compiler])
35 # automake wants to see AC_EXEEXT. But we don't need it. And having
36 # it is actually a problem, because the compiler we're passed can't
37 # necessarily do a full link. So we fool automake here.
39 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
40 # to nothing, so nothing would remain between `then' and `fi' if it
41 # were not for the `:' below.
46 AC_MSG_CHECKING([for threads package to use])
47 AC_ARG_ENABLE(threads, [ --enable-threads=TYPE choose threading package],
49 [ AC_MSG_CHECKING([for thread model used by GCC])
50 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
51 if test -z "$THREADS"; then
54 AC_MSG_RESULT([$THREADS])])
56 AC_ARG_ENABLE(parallel-mark,
57 [ --enable-parallel-mark parallelize marking and free list construction],
60 AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
65 INCLUDES=-I${srcdir}/include
75 x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux*)
76 AC_DEFINE(GC_LINUX_THREADS)
78 if test "${enable_parallel_mark}"; then
79 AC_DEFINE(PARALLEL_MARK)
81 AC_DEFINE(THREAD_LOCAL_ALLOC)
84 AC_DEFINE(GC_LINUX_THREADS)
88 AC_MSG_WARN("Only HP/UX 11 threads are supported.")
89 AC_DEFINE(GC_HPUX_THREADS)
90 AC_DEFINE(_POSIX_C_SOURCE,199506L)
91 if test "${enable_parallel_mark}" = yes; then
92 AC_DEFINE(PARALLEL_MARK)
94 AC_DEFINE(THREAD_LOCAL_ALLOC)
95 THREADLIBS="-lpthread -lrt"
98 AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
99 AC_DEFINE(GC_FREEBSD_THREADS)
100 INCLUDES="$INCLUDES -pthread"
104 AC_DEFINE(GC_SOLARIS_THREADS)
105 AC_DEFINE(GC_SOLARIS_PTHREADS)
108 AC_DEFINE(GC_IRIX_THREADS)
112 decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
113 AC_MSG_ERROR(thread package $THREADS not yet supported)
116 AC_MSG_ERROR($THREADS is an unknown thread package)
121 AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
122 AC_SUBST(EXTRA_TEST_LIBS)
127 dnl If the target is an eCos system, use the appropriate eCos
129 dnl FIXME: this should not be a local option but a global target
130 dnl system; at present there is no eCos target.
133 [ --with-ecos enable runtime eCos target support],
134 TARGET_ECOS="$with_ecos"
139 case "$TARGET_ECOS" in
144 CXXINCLUDES="-I${TARGET_ECOS}/include"
145 addobjs="$addobjs ecos.lo"
151 AC_SUBST(CXXINCLUDES)
155 # alpha_mach_dep.s assumes that pointers are not saved in fp registers.
156 # Gcc on a 21264 can spill pointers to fp registers. Oops.
158 # machdep="alpha_mach_dep.lo"
161 if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
162 AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
167 machdep="mips_ultrix_mach_dep.lo"
168 AC_DEFINE(STACKBASE, __stackbase)
169 AC_DEFINE(DATASTART_IS_ETEXT)
172 machdep="mips_ultrix_mach-dep.lo"
175 machdep="mips_sgi_mach_dep.lo"
176 AC_DEFINE(NO_EXECUTE_PERMISSION)
178 sparc-sun-solaris2.3*)
179 AC_DEFINE(SUNOS53_SHARED_LIB)
182 machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
185 if test x"$machdep" = x; then
186 machdep="mach_dep.lo"
188 addobjs="$addobjs $machdep"
191 dnl As of 4.13a2, the collector will not properly work on Solaris when
192 dnl built with gcc and -O. So we remove -O in the appropriate case.
195 if test "$GCC" = yes; then
202 new_CFLAGS="$new_CFLAGS $i"
211 dnl We need to override the top-level CFLAGS. This is how we do it.
215 dnl Include defines that have become de facto standard.
216 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
218 AC_DEFINE(NO_SIGNALS)
219 AC_DEFINE(NO_EXECUTE_PERMISSION)
220 AC_DEFINE(ALL_INTERIOR_POINTERS)
222 dnl By default, make the library as general as possible.
223 AC_DEFINE(JAVA_FINALIZATION)
224 AC_DEFINE(GC_GCJ_SUPPORT)
225 AC_DEFINE(ATOMIC_UNCOLLECTABLE)
227 dnl This is something of a hack. When cross-compiling we turn off
228 dnl some functionality. We also enable the "small" configuration.
229 dnl These is only correct when targetting an embedded system. FIXME.
230 if test -n "${with_cross_host}"; then
233 AC_DEFINE(SMALL_CONFIG)
234 AC_DEFINE(NO_DEBUGGING)
237 AC_ARG_ENABLE(full-debug,
238 [ --enable-full-debug include full support for pointer backtracing etc.],
239 [ if test "$enable_full_debug" = "yes"; then
240 AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
241 AC_DEFINE(KEEP_BACK_PTRS)
242 AC_DEFINE(DBG_HDRS_ALL)
244 x86-*-linux* | i586-*-linux* | i686-*-linux* )
245 AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
246 AC_DEFINE(SAVE_CALL_COUNT, 8)
251 AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
253 if test "${multilib}" = "yes"; then
254 multilib_arg="--enable-multilib"
263 with_multisubdir=${with_multisubdir}
264 ac_configure_args="${multilib_arg} ${ac_configure_args}"
265 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
266 gc_basedir=${gc_basedir}