Subversion Repositories scarts

# Copyright (c) 1999, 2000, 2001, 2002, 2003 by Red Hat, Inc. All rights reserved.

# Copyright 2004 Nathanael Nerode

#

# 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 Nathanael Nerode

dnl Process this file with autoconf to produce configure.

AC_PREREQ(2.59)

AC_INIT

AC_CONFIG_SRCDIR(gcj_mlc.c)

# This works around the fact that libtool configuration may change LD

# for this particular configuration, but some shells, instead of

# keeping the changes in LD private, export them just because LD is

# exported.

ORIGINAL_LD_FOR_MULTILIBS=$LD

AM_ENABLE_MULTILIB(, ..)

AC_CANONICAL_HOST

AC_CANONICAL_TARGET

# Get the 'noncanonical' system names.

ACX_NONCANONICAL_TARGET

# This works around an automake problem.

mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"

AC_SUBST(mkinstalldirs)

AM_INIT_AUTOMAKE(gc, 6.3, no-define)

# The autoconf 2.5x version of the no-executables hack.

GCC_NO_EXECUTABLES

# Yak.  We must force CC and CXX to /not/ be precious variables; otherwise

# the wrong, non-multilib-adjusted value will be used in multilibs.

# As a side effect, we have to subst CFLAGS and CXXFLAGS ourselves.

m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])

m4_define([_AC_ARG_VAR_PRECIOUS],[])

AC_PROG_CC

AC_PROG_CXX

m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])

AM_PROG_CC_C_O

AC_SUBST(CFLAGS)

AC_SUBST(CXXFLAGS)

# Newer automakes demand CCAS and CCASFLAGS.

: ${CCAS='$(CC)'}

: ${CCASFLAGS='$(CFLAGS)'}

AC_SUBST(CCAS)

AC_SUBST(CCASFLAGS)

AC_CHECK_TOOL(AS, as)

AC_CHECK_TOOL(AR, ar)

AC_CHECK_TOOL(RANLIB, ranlib, :)

AC_PROG_INSTALL

AM_MAINTAINER_MODE

. ${srcdir}/configure.host

case ${gc_basedir} in

/* | [A-Za-z]:[/\\]*) gc_flagbasedir=${gc_basedir} ;;

*) gc_flagbasedir='$(top_builddir)/'${gc_basedir} ;;

esac

gc_cflags="${gc_cflags} -Iinclude -I"'$(top_builddir)'"/./targ-include -I${gc_flagbasedir}/libc/include"

case "${host}" in

  *-*-cygwin32*)

    gc_cflags="${gc_cflags} -I${gc_flagbasedir}/../winsup/include"

    ;;

esac

dnl gc_cflags="${gc_cflags} -fno-builtin"

GC_CFLAGS=${gc_cflags}

AC_SUBST(GC_CFLAGS)

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])

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]

)

AM_CPPFLAGS="-I`cd $srcdir && ${PWDCMD-pwd}`/include"

THREADLIBS=

case "$THREADS" in

 no | none | single)

    THREADS=none

    ;;

 posix | posix95 | pthreads)

    THREADS=posix

    THREADLIBS=-lpthread

    case "$host" in

     x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)

        AC_DEFINE(GC_LINUX_THREADS,1,[support for Xavier Leroy's Linux threads])

        AC_DEFINE(_REENTRANT,1,[Use reentrant code])

        if test "${enable_parallel_mark}" = yes; then

          AC_DEFINE(PARALLEL_MARK,1,[allow the marker to run in multiple threads])

        fi

        AC_DEFINE(THREAD_LOCAL_ALLOC,1,[define GC_local_malloc() & GC_local_malloc_atomic()])

        ;;

     *-*-linux*)

        AC_DEFINE(GC_LINUX_THREADS,1)

        AC_DEFINE(_REENTRANT,1)

        ;;

     *-*-aix*)

        AC_DEFINE(GC_AIX_THREADS,1,[support AIX threads])

        AC_DEFINE(_REENTRANT,1)

        ;;

     *-*-hpux*)

        AC_MSG_WARN("Only HP/UX 11 threads are supported.")

        AC_DEFINE(GC_HPUX_THREADS,1,[enables support for HP/UX 11 pthreads])

        AC_DEFINE(_POSIX_C_SOURCE,199506L,[POSIX version of C Source])

        if test "${enable_parallel_mark}" = yes; then

          AC_DEFINE(PARALLEL_MARK,1)

        fi

        AC_DEFINE(THREAD_LOCAL_ALLOC,1)

        THREADLIBS="-lpthread -lrt"

        ;;

     *-*-freebsd*)

        AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")

        AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])

        AM_CPPFLAGS="$AM_CPPFLAGS -pthread"

        THREADLIBS=-pthread

        ;;

     *-*-solaris*)

        AC_DEFINE(GC_SOLARIS_THREADS,1,[support for Solaris (thr_) threads])

        AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])

        ;;

     *-*-irix*)

        AC_DEFINE(GC_IRIX_THREADS,1,[support for Irix pthreads])

        ;;

     *-*-cygwin*)

        AC_DEFINE(GC_WIN32_THREADS,1,[support for win32 threads])

        ;;

     *-*-darwin*)

        AC_DEFINE(GC_DARWIN_THREADS,1,[support for Mac OS X pthreads])

        AC_DEFINE(THREAD_LOCAL_ALLOC,1)

        if test "${enable_parallel_mark}" = yes; then

          AC_DEFINE(PARALLEL_MARK,1)

        fi

        ;;

     *-*-osf*)

        AC_DEFINE(GC_OSF1_THREADS,1,[support for Tru64 pthreads])

        if test "${enable_parallel_mark}" = yes; then

          AC_DEFINE(PARALLEL_MARK,1)

          AC_DEFINE(THREAD_LOCAL_ALLOC,1)

          # May want to enable it in other cases, too.

          # Measurements havent yet been done.

        fi

        AM_CPPFLAGS="$AM_CPPFLAGS -pthread"

        THREADLIBS="-lpthread -lrt"

        ;;

    esac

    ;;

 win32)

    AC_DEFINE(GC_WIN32_THREADS,1)

    dnl Old wine getenv may not return NULL for missing entry.

    dnl Define EMPTY_GETENV_RESULTS here to work around the bug.

    ;;

 dgux386)

    THREADS=dgux386

AC_MSG_RESULT($THREADLIBS)

    # Use pthread GCC  switch

    THREADLIBS=-pthread

    if test "${enable_parallel_mark}" = yes; then

        AC_DEFINE(PARALLEL_MARK,1)

    fi

    AC_DEFINE(THREAD_LOCAL_ALLOC,1)

    AC_DEFINE(GC_DGUX386_THREADS,1,[support for DB/UX on I386 threads])

    AC_DEFINE(DGUX_THREADS,1,[No description])

    # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread

    AM_CPPFLAGS="-pthread $AM_CPPFLAGS"

    ;;

 aix)

    THREADS=posix

    THREADLIBS=-lpthread

    AC_DEFINE(GC_AIX_THREADS,1)

    AC_DEFINE(_REENTRANT,1)

    ;;

 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(THREADLIBS)

case "$host" in

   powerpc-*-darwin*)

      powerpc_darwin=true

      ;;

esac

AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)

# We never want libdl on darwin. It is a fake libdl that just ends up making

# dyld calls anyway

case "$host" in

  *-*-darwin*) ;;

  *)

    AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")

    ;;

esac

AC_SUBST(EXTRA_TEST_LIBS)

target_all=libgcjgc.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=

addincludes=

addtests=

case "$TARGET_ECOS" in

   no)

      ;;

   *)

      AC_DEFINE(ECOS,1,[Target is ECOS])

      AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"

      addobjs="$addobjs ecos.lo"

      ;;

esac

if test "${enable_cplusplus}" = yes; then

      addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"

      addtests="$addtests test_cpp"

fi

AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)

AC_SUBST(CXX)

AC_SUBST(AM_CPPFLAGS)

# Configuration of shared libraries

#

AC_MSG_CHECKING(whether to build shared libraries)

AC_ENABLE_SHARED

case "$host" in

 alpha-*-openbsd*)

     enable_shared=no

     AC_MSG_RESULT(no)

     ;;

 *)

     AC_MSG_RESULT(yes)

     ;;

esac

# Configuration of machine-dependent code

#

# We don't set NO_EXECUTE_PERMISSION by default because gcj (and

# anything else that creates trampolines in gc-allocated memory)

# always needs exec permission.  The exceptions to this are IA-64 and

# some variations of Power PC, where trampolines don't contain

# executable code.

#

AC_MSG_CHECKING(which machine-dependent code should be used)

machdep=

case "$host" in

 alpha*-*-openbsd*)

    machdep="alpha_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="alpha_mach_dep.lo"

    ;;

 i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)

    AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED,1,[PROC_VDB in Solaris 2.5 gives wrong values for dirty bits])

    ;;

 mipstx39-*-elf*)

    machdep="mips_ultrix_mach_dep.lo"

    AC_DEFINE(STACKBASE, __stackbase,[No description])

    AC_DEFINE(DATASTART_IS_ETEXT,1,[No description])

    ;;

 mips-dec-ultrix*)

    machdep="mips_ultrix_mach-dep.lo"

    ;;

 mips-nec-sysv*|mips-unknown-sysv*)

    ;;

 mips*-*-linux*)

    ;;

 mips-*-*)

    machdep="mips_sgi_mach_dep.lo"

    ;;

 sparc-*-netbsd*)

    machdep="sparc_netbsd_mach_dep.lo"

    ;;

 sparc-sun-solaris2.3)

    machdep="sparc_mach_dep.lo"

    AC_DEFINE(SUNOS53_SHARED_LIB,1,[Avoid Solaris 5.3 dynamic library bug])

    ;;

 sparc*-sun-solaris2.*)

    machdep="sparc_mach_dep.lo"

    ;;

 ia64-*-*)

    AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])

    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(addincludes)

AC_SUBST(addlibs)

AC_SUBST(addtests)

#

# Check for AViiON Machines running DGUX

#

AC_MSG_CHECKING(if host is AViiON running DGUX)

ac_is_dgux=no

AC_CHECK_HEADER(sys/dg_sys_info.h,

[ac_is_dgux=yes;])

AC_MSG_RESULT($ac_is_dgux)

    ## :GOTCHA: we do not check anything but sys/dg_sys_info.h

if test $ac_is_dgux = yes; then

    if test "$enable_full_debug" = "yes"; then

      CFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"

      CXXFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"

    else

      CFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"

      CXXFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"

    fi

    AC_SUBST(CFLAGS)

    AC_SUBST(CXXFLAGS)

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 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,1,[disables statistics printing])

AC_DEFINE(NO_SIGNALS,1,[does not disable signals])

AC_DEFINE(ALL_INTERIOR_POINTERS,1,[allows all pointers to the interior of objects to be recognized])

dnl By default, make the library as general as possible.

AC_DEFINE(JAVA_FINALIZATION,1,[make it somewhat safer to finalize objects out of order])

AC_DEFINE(GC_GCJ_SUPPORT,1,[include support for gcj])

AC_DEFINE(ATOMIC_UNCOLLECTABLE,1,[include code for GC_malloc_atomic_uncollectable])

dnl This is something of a hack.  When cross-compiling we turn off

dnl some functionality. These is only correct when targetting an

dnl embedded system.  FIXME.

if test -n "${with_cross_host}"; then

   AC_DEFINE(NO_SIGSET,1,[use empty GC_disable_signals and GC_enable_signals])

   AC_DEFINE(NO_DEBUGGING,1,[removes GC_dump])

fi

AC_ARG_ENABLE(gc-debug,

[  --enable-gc-debug    include full support for pointer backtracing etc.],

[ if test "$enable_gc_debug" = "yes"; then

    AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")

    AC_DEFINE(KEEP_BACK_PTRS,1,[Add code to save back pointers])

    AC_DEFINE(DBG_HDRS_ALL,1,[Make sure that all objects have debug headers])

    case $host in

      ia64-*-linux* )

        AC_DEFINE(MAKE_BACK_GRAPH,1,[Enable GC_PRINT_BACK_HEIGHT environment variable])

      ;;

      x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )

        AC_DEFINE(MAKE_BACK_GRAPH,1)

        AC_MSG_WARN("Client must not use -fomit-frame-pointer.")

        AC_DEFINE(SAVE_CALL_COUNT, 8, [number of call frames saved with objects allocated through the debugging interface])

      ;;

      i[3456]86-*-dgux*)

        AC_DEFINE(MAKE_BACK_GRAPH,1)

      ;;

    esac

  fi])

if test "${gc_use_mmap}" = "yes"; then

  AC_DEFINE(USE_MMAP, 1, [use MMAP instead of sbrk to get new memory])

fi

symver=

case "$target" in

  *-*-linux* )

    cat > conftest.c <

#include 

void *tf (void *arg) { (void) arg; return NULL; }

int main (void) { pthread_t th; pthread_create (&th, NULL, tf, NULL); return 0; }

EOF

    if $CC $CFLAGS -pthread -o conftest conftest.c > /dev/null 2>&1; then

      symver=`readelf -s conftest 2> /dev/null | sed -n '/UND pthread_create@/{s/^.*@//;s/ .*$//;p;q}'`

    fi

    rm -f conftest conftest.c

    ;;

esac

if test -n "$symver"; then

  AC_DEFINE_UNQUOTED(GC_PTHREAD_SYM_VERSION, "$symver", [symbol version of pthread_create])

fi

if test -n "$with_cross_host" &&

   test x"$with_cross_host" != x"no"; then

  toolexecdir='$(exec_prefix)/$(target_noncanonical)'

  toolexeclibdir='$(toolexecdir)/lib'

else

  toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'

  toolexeclibdir='$(libdir)'

fi

multi_os_directory=`$CC -print-multi-os-directory`

case $multi_os_directory in

  .) ;; # Avoid trailing /.

  *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;

esac

AC_SUBST(toolexecdir)

AC_SUBST(toolexeclibdir)

if test "${multilib}" = "yes"; then

  multilib_arg="--enable-multilib"

else

  multilib_arg=

fi

AC_CONFIG_HEADERS([include/gc_config.h include/gc_ext_config.h])

AC_CONFIG_FILES(Makefile include/Makefile)

AC_OUTPUT