--- /dev/null
+# Copyright (c) 1999-2001 by Red Hat, Inc. All rights reserved.
+#
+# 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: Grzegorz Jakacki <jakacki at acm dot org>
+
+dnl Process this file with autoconf to produce configure.
+
+# Initialization
+# ==============
+
+AC_INIT(gc,7.2,gc@linux.hpl.hp.com)
+ ## version must conform to [0-9]+[.][0-9]+(alpha[0-9]+)?
+AC_CONFIG_SRCDIR(gcj_mlc.c)
+AC_CONFIG_MACRO_DIR([m4])
+AC_CANONICAL_TARGET
+AC_PREREQ(2.64)
+AC_REVISION($Revision: 1.69 $)
+GC_SET_VERSION
+AM_INIT_AUTOMAKE([foreign dist-bzip2 nostdinc])
+AM_CONFIG_HEADER([include/private/config.h])
+AM_MAINTAINER_MODE
+
+AC_SUBST(PACKAGE)
+AC_SUBST(GC_VERSION)
+
+AM_PROG_CC_C_O
+AC_PROG_CXX
+
+AM_PROG_AS
+
+AC_PROG_INSTALL
+
+. ${srcdir}/configure.host
+
+GC_CFLAGS=${gc_cflags}
+AC_SUBST(GC_CFLAGS)
+
+AC_ARG_ENABLE(threads,
+ [AC_HELP_STRING([--enable-threads=TYPE], [choose threading package])],
+ THREADS=$enableval,
+ [ AC_MSG_CHECKING([for thread model used by GCC])
+ THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
+ if test -z "$THREADS"; then
+ THREADS=no
+ fi
+ if test "$THREADS" = "posix"; then
+ case "$host" in
+ *-*-mingw*)
+ # Adjust thread model if cross-compiling for MinGW.
+ THREADS=win32
+ ;;
+ esac
+ fi
+ AC_MSG_RESULT([$THREADS]) ])
+
+AC_ARG_ENABLE(parallel-mark,
+ [AC_HELP_STRING([--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 ]
+)
+
+AC_ARG_ENABLE(cplusplus,
+ [AC_HELP_STRING([--enable-cplusplus], [install C++ support])])
+
+dnl Features which may be selected in the following thread-detection switch.
+AH_TEMPLATE([PARALLEL_MARK], [Define to enable parallel marking.])
+AH_TEMPLATE([THREAD_LOCAL_ALLOC],
+ [Define to enable thread-local allocation optimisation.])
+AH_TEMPLATE([USE_COMPILER_TLS],
+ [Define to use of compiler-support for thread-local variables.])
+
+dnl Thread selection macros.
+AH_TEMPLATE([GC_THREADS], [Define to support platform-specific \
+ threads.])
+AH_TEMPLATE([GC_AIX_THREADS], [Define to support IBM AIX threads.])
+AH_TEMPLATE([GC_DARWIN_THREADS], [Define to support Darwin pthreads.])
+AH_TEMPLATE([GC_FREEBSD_THREADS], [Define to support FreeBSD pthreads.])
+AH_TEMPLATE([GC_GNU_THREADS], [Define to support GNU pthreads.])
+AH_TEMPLATE([GC_HPUX_THREADS], [Define to support HP/UX 11 pthreads.])
+AH_TEMPLATE([GC_IRIX_THREADS], [Define to support Irix pthreads.])
+AH_TEMPLATE([GC_LINUX_THREADS], [Define to support pthreads on Linux.])
+AH_TEMPLATE([GC_NETBSD_THREADS], [Define to support NetBSD pthreads.])
+AH_TEMPLATE([GC_OPENBSD_THREADS], [Define to support OpenBSD pthreads.])
+AH_TEMPLATE([GC_OSF1_THREADS], [Define to support Tru64 pthreads.])
+AH_TEMPLATE([GC_SOLARIS_THREADS], [Define to support Solaris pthreads.])
+AH_TEMPLATE([GC_WIN32_THREADS], [Define to support Win32 threads.])
+AH_TEMPLATE([GC_WIN32_PTHREADS], [Define to support win32-pthreads.])
+AH_TEMPLATE([GC_RTEMS_PTHREADS], [Define to support rtems-pthreads.])
+
+dnl System header feature requests.
+AH_TEMPLATE([_POSIX_C_SOURCE], [The POSIX feature macro.])
+AH_TEMPLATE([_PTHREADS], [Indicates the use of pthreads (NetBSD).])
+
+dnl GC API symbols export control.
+AH_TEMPLATE([GC_DLL],
+ [Define to build dynamic libraries with only API symbols exposed.])
+
+dnl Check for a flavor of supported inline keyword.
+AC_C_INLINE
+
+THREADDLLIBS=
+need_atomic_ops_asm=false
+## Libraries needed to support dynamic loading and/or threads.
+case "$THREADS" in
+ no | none | single)
+ THREADS=none
+ ;;
+ posix | pthreads)
+ THREADS=posix
+ AC_CHECK_LIB(pthread, pthread_self, THREADDLLIBS="-lpthread",,)
+ case "$host" in
+ x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* \
+ | x86_64-*-linux* | alpha-*-linux* | sparc*-*-linux*)
+ AC_DEFINE(GC_LINUX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ AC_MSG_WARN("Explicit GC_INIT() calls may be required.");
+ ;;
+ *-*-linux*)
+ AC_DEFINE(GC_LINUX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ ;;
+ *-*-aix*)
+ AC_DEFINE(GC_AIX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ ;;
+ *-*-hpux11*)
+ AC_MSG_WARN("Only HP/UX 11 POSIX threads are supported.")
+ AC_DEFINE(GC_HPUX_THREADS)
+ AC_DEFINE(_POSIX_C_SOURCE,199506L)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ AC_MSG_WARN("Explicit GC_INIT() calls may be required.");
+ THREADDLLIBS="-lpthread -lrt"
+ # HPUX needs REENTRANT for the _r calls.
+ AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads.])
+ ;;
+ *-*-hpux10*)
+ AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
+ ;;
+ *-*-openbsd*)
+ AC_DEFINE(GC_OPENBSD_THREADS)
+ THREADDLLIBS=-pthread
+ INCLUDES="$INCLUDES -pthread"
+ openbsd_threads=true
+ ;;
+ *-*-freebsd*)
+ AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
+ AC_DEFINE(GC_FREEBSD_THREADS)
+ INCLUDES="$INCLUDES -pthread"
+ ;;
+ *-*-kfreebsd*-gnu)
+ AC_DEFINE(GC_FREEBSD_THREADS)
+ INCLUDES="$INCLUDES -pthread"
+ THREADDLLIBS=-pthread
+ AC_DEFINE(_REENTRANT)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ AC_DEFINE(USE_COMPILER_TLS)
+ ;;
+ *-*-gnu*)
+ AC_DEFINE(GC_GNU_THREADS)
+ AC_DEFINE(_REENTRANT)
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ ;;
+ *-*-netbsd*)
+ AC_MSG_WARN("Only on NetBSD 2.0 or later.")
+ AC_DEFINE(GC_NETBSD_THREADS)
+ AC_DEFINE(_REENTRANT)
+ AC_DEFINE(_PTHREADS)
+ THREADDLLIBS="-lpthread -lrt"
+ ;;
+ *-*-solaris*)
+ AC_DEFINE(GC_SOLARIS_THREADS)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ # Need to use alternate thread library, otherwise gctest hangs
+ # on Solaris 8.
+ multi_os_directory=`$CC -print-multi-os-directory`
+ THREADDLLIBS="-L/usr/lib/lwp/$multi_os_directory \
+ -R/usr/lib/lwp/$multi_os_directory -lpthread -lrt"
+ ;;
+ *-*-irix*)
+ AC_DEFINE(GC_IRIX_THREADS)
+ ;;
+ *-*-cygwin*)
+ AC_DEFINE(GC_WIN32_THREADS)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ # Cygwin doesn't have a real libpthread, so Libtool can't link
+ # against it.
+ THREADDLLIBS=""
+ win32_threads=true
+ ;;
+ *-*-mingw*)
+ AC_DEFINE(GC_WIN32_PTHREADS)
+ # Using win32-pthreads
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ THREADDLLIBS="-lpthread"
+ win32_threads=true
+ ;;
+ *-*-darwin*)
+ AC_DEFINE(GC_DARWIN_THREADS)
+ AC_MSG_WARN("Explicit GC_INIT() calls may be required.");
+ # Parallel-mark is not well-tested on Darwin
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ darwin_threads=true
+ ;;
+ *-*-osf*)
+ AC_DEFINE(GC_OSF1_THREADS)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ AC_MSG_WARN("Explicit GC_INIT() calls may be required.");
+ # May want to enable it in other cases, too.
+ # Measurements have not yet been done.
+ fi
+ INCLUDES="$INCLUDES -pthread"
+ THREADDLLIBS="-lpthread -lrt"
+ ;;
+ *)
+ AC_MSG_ERROR("Pthreads not supported by the GC on this platform.")
+ ;;
+ esac
+ case "$host" in
+ sparc*-*-solaris*)
+ if test "$GCC" != yes; then
+ CFLAGS="$CFLAGS -O"
+ need_atomic_ops_asm=true
+ fi
+ ;;
+ esac
+ ;;
+ win32)
+ AC_DEFINE(GC_WIN32_THREADS)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ else
+ if test "${enable_shared}" != yes || test "${enable_static}" != no; then
+ # Imply THREAD_LOCAL_ALLOC unless GC_DLL.
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ fi
+ fi
+ win32_threads=true
+ AC_DEFINE([EMPTY_GETENV_RESULTS], [1],
+ [Wine getenv may not return NULL for missing entry.])
+ ;;
+ dgux386)
+ THREADS=dgux386
+ AC_MSG_RESULT($THREADDLLIBS)
+ # Use pthread GCC switch
+ THREADDLLIBS=-pthread
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ AC_MSG_WARN("Explicit GC_INIT() calls may be required.");
+ AC_DEFINE([GC_DGUX386_THREADS], 1,
+ [Define to enable support for DB/UX threads on i386.])
+ AC_DEFINE([DGUX_THREADS], 1,
+ [Define to enable support for DB/UX threads.])
+ # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
+ INCLUDES="-pthread $INCLUDES"
+ ;;
+ aix)
+ THREADS=posix
+ THREADDLLIBS=-lpthread
+ AC_DEFINE(GC_AIX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ ;;
+ rtems)
+ THREADS=posix
+ AC_DEFINE(GC_RTEMS_PTHREADS)
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ ;;
+ 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(THREADDLLIBS)
+AM_CONDITIONAL(THREADS, test x$THREADS != xnone)
+AM_CONDITIONAL(PTHREADS, test x$THREADS = xposix)
+AM_CONDITIONAL(DARWIN_THREADS, test x$darwin_threads = xtrue)
+AM_CONDITIONAL(WIN32_THREADS, test x$win32_threads = xtrue)
+AM_CONDITIONAL(OPENBSD_THREADS, test x$openbsd_threads = xtrue)
+
+case "$host" in
+ powerpc-*-darwin*)
+ powerpc_darwin=true
+ ;;
+esac
+
+AC_MSG_CHECKING(for xlc)
+AC_TRY_COMPILE([],[
+ #ifndef __xlC__
+ # error
+ #endif
+], [compiler_xlc=yes], [compiler_xlc=no])
+AC_MSG_RESULT($compiler_xlc)
+AM_CONDITIONAL(COMPILER_XLC,test $compiler_xlc = yes)
+if test $compiler_xlc = yes -a "$powerpc_darwin" = true; then
+ # the darwin stack-frame-walking code is completely broken on xlc
+ AC_DEFINE([DARWIN_DONT_PARSE_STACK], 1, [See doc/README.macros.])
+fi
+
+if test "$GCC" == yes; then
+ # Disable aliasing optimization unless forced to.
+ AC_MSG_CHECKING([whether gcc supports -fno-strict-aliasing])
+ ac_cv_fno_strict_aliasing=no
+ for cflag in $CFLAGS; do
+ case "$cflag" in
+ -fstrict-aliasing)
+ # Opposite option already present
+ ac_cv_fno_strict_aliasing=skipped
+ break
+ ;;
+ esac
+ done
+ if test "$ac_cv_fno_strict_aliasing" != skipped; then
+ old_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -fno-strict-aliasing"
+ AC_TRY_COMPILE([],[], [ac_cv_fno_strict_aliasing=yes], [])
+ CFLAGS="$old_CFLAGS"
+ AS_IF([test "$ac_cv_fno_strict_aliasing" = yes],
+ [CFLAGS="$CFLAGS -fno-strict-aliasing"], [])
+ fi
+ AC_MSG_RESULT($ac_cv_fno_strict_aliasing)
+fi
+
+case "$host" in
+# While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64
+# and unnecessary everywhere.
+ mips-sgi-irix6*) ;;
+# We never want libdl on darwin. It is a fake libdl that just ends up making
+# dyld calls anyway. The same applies to Cygwin.
+ *-*-darwin*) ;;
+ *-*-cygwin*) ;;
+ *)
+ AC_CHECK_LIB(dl, dlopen, THREADDLLIBS="$THREADDLLIBS -ldl")
+ ;;
+esac
+
+case "$host" in
+ *-*-hpux*)
+ avoid_cpp_lib=yes;;
+ *)
+ avoid_cpp_lib=no;
+ ;;
+esac
+AM_CONDITIONAL(AVOID_CPP_LIB,test $avoid_cpp_lib = yes)
+
+# extra LD Flags which are required for targets
+case "${host}" in
+ *-*-darwin*)
+ extra_ldflags_libgc=-Wl,-single_module
+ ;;
+esac
+AC_SUBST(extra_ldflags_libgc)
+
+AC_SUBST(EXTRA_TEST_LIBS)
+
+target_all=libgc.la
+AC_SUBST(target_all)
+
+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="$with_ecos"
+)
+
+addobjs=
+addlibs=
+CXXINCLUDES=
+case "$TARGET_ECOS" in
+ no)
+ ;;
+ *)
+ AC_DEFINE([ECOS], 1, [Define to enable eCos target support.])
+ CXXINCLUDES="-I${TARGET_ECOS}/include"
+ addobjs="$addobjs ecos.lo"
+ ;;
+esac
+
+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
+ ;;
+ *)
+ ;;
+esac
+
+AC_MSG_RESULT($enable_shared)
+
+# Compile with GC_DLL defined unless building static libraries.
+if test "${enable_shared}" == yes; then
+ if test "${enable_static}" == no; then
+ AC_DEFINE(GC_DLL)
+ # FIXME: Also pass -fvisibility=hidden option if GCC v4+ and not Win32.
+ fi
+fi
+
+# Configuration of machine-dependent code
+#
+AC_MSG_CHECKING(which machine-dependent code should be used)
+machdep=
+case "$host" in
+ alpha-*-openbsd*)
+ machdep="mach_dep.lo"
+ if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
+ AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
+ fi
+ ;;
+ alpha*-*-linux*)
+ machdep="mach_dep.lo"
+ ;;
+ i?86-*-solaris2.[[89]])
+ # PROC_VDB appears to work in 2.8 and 2.9 but not in 2.10+ (for now).
+ AC_DEFINE([SOLARIS25_PROC_VDB_BUG_FIXED], 1,
+ [See the comment in gcconfig.h.])
+ ;;
+ mipstx39-*-elf*)
+ machdep="mach_dep.lo"
+ ;;
+ mips-dec-ultrix*)
+ machdep="mach-dep.lo"
+ ;;
+ mips-nec-sysv*|mips-unknown-sysv*)
+ ;;
+ mips*-*-linux*)
+ ;;
+ mips-*-*)
+ machdep="mach_dep.lo"
+ dnl AC_DEFINE(NO_EXECUTE_PERMISSION)
+ dnl This is now redundant, but it is also important for incremental GC
+ dnl performance under Irix.
+ ;;
+ sparc*-*-linux*)
+ machdep="mach_dep.lo sparc_mach_dep.lo"
+ ;;
+ sparc-*-netbsd*)
+ machdep="mach_dep.lo sparc_netbsd_mach_dep.lo"
+ ;;
+ sparc64-*-netbsd*)
+ machdep="mach_dep.lo sparc_mach_dep.lo"
+ ;;
+ sparc*-*-openbsd*)
+ machdep="mach_dep.lo sparc_mach_dep.lo"
+ ;;
+ sparc-sun-solaris2.3)
+ machdep="mach_dep.lo sparc_mach_dep.lo"
+ AC_DEFINE(SUNOS53_SHARED_LIB, 1,
+ [Define to work around a Solaris 5.3 bug (see dyn_load.c).])
+ ;;
+ sparc*-sun-solaris2*)
+ machdep="mach_dep.lo sparc_mach_dep.lo"
+ ;;
+ ia64-*-*)
+ machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
+ ;;
+esac
+if test x"$machdep" = x; then
+AC_MSG_RESULT($machdep)
+ machdep="mach_dep.lo"
+fi
+addobjs="$addobjs $machdep"
+AC_SUBST(addobjs)
+AC_SUBST(addlibs)
+
+AC_PROG_LIBTOOL
+
+dnl We use these options to decide which functions to include.
+AC_ARG_WITH(target-subdir,
+[ --with-target-subdir=SUBDIR
+ configuring with a cross compiler])
+AC_ARG_WITH(cross-host,
+[ --with-cross-host=HOST configuring with a cross compiler])
+
+# automake wants to see AC_EXEEXT. But we don't need it. And having
+# it is actually a problem, because the compiler we're passed can't
+# necessarily do a full link. So we fool automake here.
+if false; then
+ # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
+ # to nothing, so nothing would remain between `then' and `fi' if it
+ # were not for the `:' below.
+ :
+ AC_EXEEXT
+fi
+
+dnl As of 4.13a2, the collector will not properly work on Solaris when
+dnl built with gcc and -O. So we remove -O in the appropriate case.
+dnl Not needed anymore on Solaris.
+AC_MSG_CHECKING(whether Solaris gcc optimization fix is necessary)
+case "$host" in
+ *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 Include defines that have become de facto standard.
+dnl ALL_INTERIOR_POINTERS and NO_EXECUTE_PERMISSION can be overridden in the startup code.
+AC_DEFINE([NO_EXECUTE_PERMISSION], [1],
+ [Define to make the collector not allocate executable memory by default.])
+AC_DEFINE([ALL_INTERIOR_POINTERS], [1],
+ [Define to recognise all pointers to the interior of objects.])
+
+
+dnl Interface Selection
+dnl -------------------
+dnl
+dnl By default, make the library as general as possible.
+dnl enable_gcj_support=no
+AC_ARG_ENABLE(gcj-support,
+ [AC_HELP_STRING([--disable-gcj-support],
+ [Disable support for gcj.])])
+AM_CONDITIONAL(ENABLE_GCJ_SUPPORT,
+ [test x"$enable_gcj_support" != xno])
+if test x"$enable_gcj_support" != xno; then
+ AC_DEFINE(GC_GCJ_SUPPORT, 1, [Define to include support for gcj.])
+fi
+
+dnl Debugging
+dnl ---------
+
+AH_TEMPLATE([GC_HAVE_BUILTIN_BACKTRACE],
+ [Define if backtrace information is supported.])
+AH_TEMPLATE([MAKE_BACK_GRAPH], [See doc/README.macros.])
+AH_TEMPLATE([SAVE_CALL_COUNT],
+ [The number of caller frames saved when allocating with the
+ debugging API.])
+UNWINDLIBS=
+AC_ARG_ENABLE(gc-debug,
+[AC_HELP_STRING([--enable-gc-debug],
+ [include full support for pointer backtracing etc.])],
+[ if test "$enable_gc_debug" = "yes"; then
+ AC_MSG_WARN("Should define GC_DEBUG and use debug alloc. in clients.")
+ AC_DEFINE([KEEP_BACK_PTRS], 1,
+ [Define to save back-pointers in debugging headers.])
+ keep_back_ptrs=true
+ AC_DEFINE([DBG_HDRS_ALL], 1,
+ [Define to force debug headers on all objects.])
+ case $host in
+ ia64-*-linux* )
+ AC_DEFINE(MAKE_BACK_GRAPH)
+ AC_DEFINE(SAVE_CALL_COUNT, 8)
+ AC_CHECK_LIB(unwind, backtrace, [
+ AC_DEFINE(GC_HAVE_BUILTIN_BACKTRACE)
+ UNWINDLIBS=-lunwind
+ AC_MSG_WARN("Client code may need to link against libunwind.")
+ ])
+ ;;
+ x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
+ AC_DEFINE(MAKE_BACK_GRAPH)
+ AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
+ AC_DEFINE(SAVE_CALL_COUNT, 8)
+ ;;
+ i[3456]86-*-dgux*)
+ AC_DEFINE(MAKE_BACK_GRAPH)
+ ;;
+ esac ]
+ fi)
+AM_CONDITIONAL([KEEP_BACK_PTRS], [test x"$keep_back_ptrs" = xtrue])
+
+# Check for AViiON Machines running DGUX
+ac_is_dgux=no
+AC_CHECK_HEADER(sys/dg_sys_info.h,
+[ac_is_dgux=yes;])
+
+ ## :GOTCHA: we do not check anything but sys/dg_sys_info.h
+if test $ac_is_dgux = yes; then
+ dgux_spec_opts="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
+ CFLAGS="$dgux_spec_opts $CFLAGS"
+ CXXFLAGS="$dgux_spec_opts $CXXFLAGS"
+ if test "$enable_gc_debug" = "yes"; then
+ CFLAGS="-g -mstandard $CFLAGS"
+ CXXFLAGS="-g -mstandard $CXXFLAGS"
+ fi
+ AC_SUBST(CFLAGS)
+ AC_SUBST(CXXFLAGS)
+fi
+
+AC_ARG_ENABLE(java-finalization,
+ [AC_HELP_STRING([--disable-java-finalization],
+ [Disable support for java finalization.])])
+if test x"$enable_java_finalization" != xno; then
+ AC_DEFINE([JAVA_FINALIZATION], 1, [See doc/README.macros.])
+fi
+
+AC_ARG_ENABLE(atomic-uncollectable,
+ [AC_HELP_STRING([--disable-atomic-uncollectible],
+ [Disable support for atomic uncollectible allocation.])])
+if test x"$enable_atomic_uncollectible" != x"no"; then
+ AC_DEFINE(ATOMIC_UNCOLLECTABLE, 1,
+ [Define to enable atomic uncollectible allocation.])
+fi
+
+AC_ARG_ENABLE(redirect-malloc,
+ [AC_HELP_STRING([--enable-redirect-malloc],
+ [Redirect malloc and friends to GC routines])])
+
+if test "${enable_redirect_malloc}" = yes; then
+ if test "${enable_gc_debug}" = yes; then
+ AC_DEFINE([REDIRECT_MALLOC], GC_debug_malloc_replacement,
+ [If defined, redirect malloc to this function.])
+ AC_DEFINE([REDIRECT_REALLOC], GC_debug_realloc_replacement,
+ [If defined, redirect GC_realloc to this function.])
+ AC_DEFINE([REDIRECT_FREE], GC_debug_free,
+ [If defined, redirect free to this function.])
+ else
+ AC_DEFINE(REDIRECT_MALLOC, GC_malloc)
+ fi
+ AC_DEFINE([GC_USE_DLOPEN_WRAP], 1, [See doc/README.macros.])
+fi
+
+AC_ARG_ENABLE(large-config,
+ [AC_HELP_STRING([--enable-large-config],
+ [Optimize for large (> 100 MB) heap or root set])])
+
+if test "${enable_large_config}" = yes; then
+ AC_DEFINE(LARGE_CONFIG, 1, [Define to optimize for large heaps or root sets.])
+fi
+
+AC_ARG_ENABLE(handle-fork,
+ [AC_HELP_STRING([--enable-handle-fork],
+ [Attempt to ensure a usable collector after fork() in multi-threaded
+ programs.])])
+
+if test "${enable_handle_fork}" = yes; then
+ AC_DEFINE(HANDLE_FORK, 1,
+ [Define to install pthread_atfork() handlers by default.])
+elif test "${enable_handle_fork}" = no; then
+ AC_DEFINE(NO_HANDLE_FORK, 1,
+ [Prohibit installation of pthread_atfork() handlers.])
+fi
+
+dnl This is something of a hack. When cross-compiling we turn off
+dnl some functionality. We also enable the "small" configuration.
+dnl These is only correct when targetting an embedded system. FIXME.
+if test -n "${with_cross_host}"; then
+ AC_DEFINE([NO_CLOCK], 1, [Define to not use system clock (cross compiling).])
+ AC_DEFINE([SMALL_CONFIG], 1,
+ [Define to tune the collector for small heap sizes.])
+fi
+
+if test "$enable_gc_debug" == "no"; then
+ AC_DEFINE([NO_DEBUGGING], 1,
+ [Disable debugging, like GC_dump and its callees.])
+fi
+
+AC_SUBST(UNWINDLIBS)
+
+AC_ARG_ENABLE(gc-assertions,
+ [AC_HELP_STRING([--enable-gc-assertions],
+ [collector-internal assertion checking])])
+if test "${enable_gc_assertions}" = yes; then
+ AC_DEFINE([GC_ASSERTIONS], 1, [Define to enable internal debug assertions.])
+fi
+
+AC_ARG_ENABLE(munmap,
+ [AC_HELP_STRING([--enable-munmap=N],
+ [return page to the os if empty for N collections])],
+ MUNMAP_THRESHOLD=$enableval;
+ [case "$MMAP" in
+ no)
+ AC_MSG_ERROR([--enable-munmap requires --enable-mmap])
+ ;;
+ esac]
+ )
+if test "${enable_munmap}" != ""; then
+ AC_DEFINE([USE_MMAP], 1,
+ [Define to use mmap instead of sbrk to expand the heap.])
+ AC_DEFINE([USE_MUNMAP], 1,
+ [Define to return memory to OS with munmap calls
+ (see doc/README.macros).])
+ if test "${MUNMAP_THRESHOLD}" = "yes"; then
+ MUNMAP_THRESHOLD=6
+ fi
+ AC_DEFINE_UNQUOTED([MUNMAP_THRESHOLD], [${MUNMAP_THRESHOLD}],
+ [Number of GC cycles to wait before unmapping an unused block.])
+fi
+
+AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
+
+
+# Atomic Ops
+# ----------
+
+# Do we want to use an external libatomic_ops? By default use it if it's
+# found.
+AC_ARG_WITH([libatomic-ops],
+ [AS_HELP_STRING([--with-libatomic-ops[=yes|no|check]],
+ [Use a external libatomic_ops? (default: check)])],
+ [], [with_libatomic_ops=check])
+
+# Check for an external libatomic_ops if the answer was yes or check. If not
+# found, fail on yes, and convert check to no.
+AS_IF([test x"$with_libatomic_ops" != xno],
+ [ PKG_CHECK_MODULES([ATOMIC_OPS], [atomic_ops], [],
+ [ AS_IF([test x"$with_libatomic_ops" != xcheck],
+ [AC_MSG_ERROR([A external libatomic_ops was not found.])])
+ with_libatomic_ops=no ]) ])
+
+# If we have neither an external or an internal version, offer a useful hint
+# and exit.
+AS_IF([test x"$with_libatomic_ops" = xno -a ! -e "$srcdir/libatomic_ops"],
+ [ AC_MSG_ERROR([libatomic_ops is required. You can either install it on your system, or fetch and unpack a recent version into the source directory and link or rename it to libatomic_ops.]) ])
+
+# Finally, emit the definitions for bundled or external AO.
+AC_MSG_CHECKING([which libatomic_ops to use])
+AS_IF([test x"$with_libatomic_ops" != xno],
+ [ AC_MSG_RESULT([external]) ],
+ [ AC_MSG_RESULT([internal])
+ ATOMIC_OPS_CFLAGS='-I$(top_builddir)/libatomic_ops/src -I$(top_srcdir)/libatomic_ops/src'
+ ATOMIC_OPS_LIBS=""
+ AC_SUBST([ATOMIC_OPS_CFLAGS])
+ AC_CONFIG_SUBDIRS([libatomic_ops])
+ ])
+AM_CONDITIONAL([USE_INTERNAL_LIBATOMIC_OPS],
+ [test x$with_libatomic_ops = xno -a x"$THREADS" != xnone])
+AM_CONDITIONAL([NEED_ATOMIC_OPS_ASM],
+ [test x$with_libatomic_ops = xno -a x$need_atomic_ops_asm = xtrue])
+
+dnl Produce the Files
+dnl -----------------
+
+AC_CONFIG_FILES([Makefile bdw-gc.pc])
+
+AC_CONFIG_COMMANDS([default],,
+ [ srcdir="${srcdir}"
+ host=${host}
+ CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+ CC="${CC}"
+ DEFS="$DEFS" ])
+
+AC_OUTPUT
projects / hs-boehmgc.git / blobdiff