# 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"
)
