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+# 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
+
+dnl Process this file with autoconf to produce configure.
+
+AC_INIT(gcj_mlc.c)
+
+dnl Can't be done in GC_CONFIGURE because that confuses automake.
+AC_CONFIG_AUX_DIR(.)
+
+AC_CANONICAL_SYSTEM
+
+GC_CONFIGURE(.)
+
+AM_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])
+
+AM_MAINTAINER_MODE
+# 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
+
+AC_MSG_CHECKING([for threads package to use])
+AC_ARG_ENABLE(threads, [ --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 "$THREADS"; then
+ THREADS=no
+ fi
+ AC_MSG_RESULT([$THREADS])])
+
+AC_ARG_ENABLE(parallel-mark,
+[ --enable-parallel-mark parallelize marking and free list construction],
+ [case "$THREADS" in
+ no | none | single)
+ AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
+ ;;
+ esac]
+)
+
+INCLUDES=-I${srcdir}/include
+THREADLIBS=
+case "$THREADS" in
+ no | none | single)
+ THREADS=none
+ ;;
+ posix | pthreads)
+ THREADS=posix
+ THREADLIBS=-lpthread
+ case "$host" in
+ x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux*)
+ AC_DEFINE(GC_LINUX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ if test "${enable_parallel_mark}"; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ ;;
+ *-*-linux*)
+ AC_DEFINE(GC_LINUX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ ;;
+ *-*-hpux*)
+ AC_MSG_WARN("Only HP/UX 11 threads are supported.")
+ AC_DEFINE(GC_HPUX_THREADS)
+ AC_DEFINE(_POSIX_C_SOURCE,199506L)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ THREADLIBS="-lpthread -lrt"
+ ;;
+ *-*-freebsd*)
+ AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
+ AC_DEFINE(FREEBSD_THREADS)
+ INCLUDES="$INCLUDES -pthread"
+ THREADLIBS=-pthread
+ ;;
+ *-*-solaris*)
+ AC_DEFINE(GC_SOLARIS_THREADS)
+ AC_DEFINE(GC_SOLARIS_PTHREADS)
+ ;;
+ *-*-irix*)
+ AC_DEFINE(GC_IRIX_THREADS)
+ ;;
+ esac
+ ;;
+ decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
+ AC_MSG_ERROR(thread package $THREADS not yet supported)
+ ;;
+ *)
+ AC_MSG_ERROR($THREADS is an unknown thread package)
+ ;;
+esac
+AC_SUBST(THREADLIBS)
+
+AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
+AC_SUBST(EXTRA_TEST_LIBS)
+
+target_all=libgc.la
+AC_SUBST(target_all)
+
+dnl If the target is an eCos system, use the appropriate eCos
+dnl I/O routines.
+dnl FIXME: this should not be a local option but a global target
+dnl system; at present there is no eCos target.
+TARGET_ECOS="no"
+AC_ARG_WITH(ecos,
+[ --with-ecos enable runtime eCos target support],
+TARGET_ECOS="$with_ecos"
+)
+
+addobjs=
+CXXINCLUDES=
+case "$TARGET_ECOS" in
+ no)
+ ;;
+ *)
+ AC_DEFINE(ECOS)
+ CXXINCLUDES="-I${TARGET_ECOS}/include"
+ addobjs="$addobjs ecos.lo"
+ ;;
+esac
+AC_SUBST(CXX)
+
+AC_SUBST(INCLUDES)
+AC_SUBST(CXXINCLUDES)
+
+machdep=
+case "$host" in
+# alpha_mach_dep.s assumes that pointers are not saved in fp registers.
+# Gcc on a 21264 can spill pointers to fp registers. Oops.
+# alpha*-*-*)
+# machdep="alpha_mach_dep.lo"
+# ;;
+ mipstx39-*-elf*)
+ machdep="mips_ultrix_mach_dep.lo"
+ AC_DEFINE(STACKBASE, __stackbase)
+ AC_DEFINE(DATASTART_IS_ETEXT)
+ ;;
+ mips-dec-ultrix*)
+ machdep="mips_ultrix_mach-dep.lo"
+ ;;
+ mips-*-*)
+ machdep="mips_sgi_mach_dep.lo"
+ AC_DEFINE(NO_EXECUTE_PERMISSION)
+ ;;
+ sparc-sun-solaris2.3*)
+ AC_DEFINE(SUNOS53_SHARED_LIB)
+ ;;
+esac
+if test x"$machdep" = x; then
+ machdep="mach_dep.lo"
+fi
+addobjs="$addobjs $machdep"
+AC_SUBST(addobjs)
+
+dnl As of 4.13a2, the collector will not properly work on Solaris when
+dnl built with gcc and -O. So we remove -O in the appropriate case.
+case "$host" in
+ sparc-sun-solaris2*)
+ if test "$GCC" = yes; then
+ new_CFLAGS=
+ for i in $CFLAGS; do
+ case "$i" in
+ -O*)
+ ;;
+ *)
+ new_CFLAGS="$new_CFLAGS $i"
+ ;;
+ esac
+ done
+ CFLAGS="$new_CFLAGS"
+ fi
+ ;;
+esac
+
+dnl We need to override the top-level CFLAGS. This is how we do it.
+MY_CFLAGS="$CFLAGS"
+AC_SUBST(MY_CFLAGS)
+
+dnl Include defines that have become de facto standard.
+dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
+AC_DEFINE(SILENT)
+AC_DEFINE(NO_SIGNALS)
+AC_DEFINE(NO_EXECUTE_PERMISSION)
+AC_DEFINE(ALL_INTERIOR_POINTERS)
+
+dnl By default, make the library as general as possible.
+AC_DEFINE(JAVA_FINALIZATION)
+AC_DEFINE(GC_GCJ_SUPPORT)
+AC_DEFINE(ATOMIC_UNCOLLECTABLE)
+
+dnl This is something of a hack. When cross-compiling we turn off
+dnl some functionality. We also enable the "small" configuration.
+dnl These is only correct when targetting an embedded system. FIXME.
+if test -n "${with_cross_host}"; then
+ AC_DEFINE(NO_SIGSET)
+ AC_DEFINE(NO_CLOCK)
+ AC_DEFINE(SMALL_CONFIG)
+ AC_DEFINE(NO_DEBUGGING)
+fi
+
+AC_ARG_ENABLE(full-debug,
+[ --enable-full-debug include full support for pointer backtracing etc.],
+[ if test "$enable_full_debug" = "yes"; then
+ AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
+ AC_DEFINE(KEEP_BACK_PTRS)
+ AC_DEFINE(DBG_HDRS_ALL)
+ case $host in
+ x86-*-linux* | i586-*-linux* | i686-*-linux* )
+ AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
+ AC_DEFINE(SAVE_CALL_COUNT, 8)
+ ;;
+ esac ]
+ fi)
+
+AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
+
+if test "${multilib}" = "yes"; then
+ multilib_arg="--enable-multilib"
+else
+ multilib_arg=
+fi
+
+AC_OUTPUT(Makefile,,
+srcdir=${srcdir}
+host=${host}
+target=${target}
+with_multisubdir=${with_multisubdir}
+ac_configure_args="${multilib_arg} ${ac_configure_args}"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+gc_basedir=${gc_basedir}
+CC="${CC}"
+DEFS="$DEFS"
+)