261 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			261 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| # Copyright (c) 1999-2001 by Red Hat, Inc. All rights reserved.
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| # 
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| # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
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| # OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
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| # 
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| # Permission is hereby granted to use or copy this program
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| # for any purpose,  provided the above notices are retained on all copies.
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| # Permission to modify the code and to distribute modified code is granted,
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| # provided the above notices are retained, and a notice that the code was
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| # modified is included with the above copyright notice.
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| #
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| # Original author: Tom Tromey
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| 
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| dnl Process this file with autoconf to produce configure.
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| 
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| AC_INIT(gcj_mlc.c)
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| 
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| dnl Can't be done in GC_CONFIGURE because that confuses automake. 
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| AC_CONFIG_AUX_DIR(.)
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| 
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| AC_CANONICAL_SYSTEM
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| 
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| GC_CONFIGURE(.)
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| 
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| AM_PROG_LIBTOOL
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| 
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| dnl We use these options to decide which functions to include.
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| AC_ARG_WITH(target-subdir,
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| [  --with-target-subdir=SUBDIR
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|                           configuring with a cross compiler])
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| AC_ARG_WITH(cross-host,
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| [  --with-cross-host=HOST  configuring with a cross compiler])
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| 
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| AM_MAINTAINER_MODE
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| # automake wants to see AC_EXEEXT.  But we don't need it.  And having
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| # it is actually a problem, because the compiler we're passed can't
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| # necessarily do a full link.  So we fool automake here.
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| if false; then
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|   # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
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|   # to nothing, so nothing would remain between `then' and `fi' if it
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|   # were not for the `:' below.
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|   :
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|   AC_EXEEXT
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| fi
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| 
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| AC_MSG_CHECKING([for threads package to use])
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| AC_ARG_ENABLE(threads, [  --enable-threads=TYPE   choose threading package],
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|   THREADS=$enableval,
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|   [ AC_MSG_CHECKING([for thread model used by GCC])
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|     THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
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|     if test -z "$THREADS"; then
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|       THREADS=no
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|     fi
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|     AC_MSG_RESULT([$THREADS])])
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| 
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| AC_ARG_ENABLE(parallel-mark,
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| [  --enable-parallel-mark	parallelize marking and free list construction],
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|    [case "$THREADS" in
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|       no | none | single)
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| 	AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
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| 	;;
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|     esac]
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| )
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| 
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| INCLUDES=-I${srcdir}/include
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| THREADLIBS=
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| case "$THREADS" in
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|  no | none | single)
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|     THREADS=none
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|     ;;
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|  posix | pthreads)
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|     THREADS=posix
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|     THREADLIBS=-lpthread
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|     case "$host" in
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|      x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux*)
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| 	AC_DEFINE(GC_LINUX_THREADS)
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| 	AC_DEFINE(_REENTRANT)
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|         if test "${enable_parallel_mark}"; then
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| 	  AC_DEFINE(PARALLEL_MARK)
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| 	fi
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| 	AC_DEFINE(THREAD_LOCAL_ALLOC)
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| 	;;
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|      *-*-linux*)
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| 	AC_DEFINE(GC_LINUX_THREADS)
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| 	AC_DEFINE(_REENTRANT)
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| 	;;
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|      *-*-hpux*)
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| 	AC_MSG_WARN("Only HP/UX 11 threads are supported.")
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| 	AC_DEFINE(GC_HPUX_THREADS)
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| 	AC_DEFINE(_POSIX_C_SOURCE,199506L)
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| 	if test "${enable_parallel_mark}" = yes; then
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| 	  AC_DEFINE(PARALLEL_MARK)
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| 	fi
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| 	AC_DEFINE(THREAD_LOCAL_ALLOC)
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| 	THREADLIBS="-lpthread -lrt"
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| 	;;
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|      *-*-freebsd*)
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| 	AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
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| 	AC_DEFINE(FREEBSD_THREADS)
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| 	INCLUDES="$INCLUDES -pthread"
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| 	THREADLIBS=-pthread
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|       	;;
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|      *-*-solaris*)
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| 	AC_DEFINE(GC_SOLARIS_THREADS)
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| 	AC_DEFINE(GC_SOLARIS_PTHREADS)
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| 	;;
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|      *-*-irix*)
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| 	AC_DEFINE(GC_IRIX_THREADS)
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| 	;;
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|     esac
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|     ;;
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|  decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
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|     AC_MSG_ERROR(thread package $THREADS not yet supported)
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|     ;;
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|  *)
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|     AC_MSG_ERROR($THREADS is an unknown thread package)
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|     ;;
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| esac
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| AC_SUBST(THREADLIBS)
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| 
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| AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
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| AC_SUBST(EXTRA_TEST_LIBS)
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| 
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| target_all=libgc.la
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| AC_SUBST(target_all)
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| 
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| dnl If the target is an eCos system, use the appropriate eCos
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| dnl I/O routines.
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| dnl FIXME: this should not be a local option but a global target
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| dnl system; at present there is no eCos target.
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| TARGET_ECOS="no"
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| AC_ARG_WITH(ecos,
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| [  --with-ecos             enable runtime eCos target support],
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| TARGET_ECOS="$with_ecos"
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| )
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| 
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| addobjs=
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| CXXINCLUDES=
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| case "$TARGET_ECOS" in
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|    no)
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|       ;;
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|    *)
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|       AC_DEFINE(ECOS)
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|       CXXINCLUDES="-I${TARGET_ECOS}/include"
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|       addobjs="$addobjs ecos.lo"
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|       ;;
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| esac
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| AC_SUBST(CXX)
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| 
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| AC_SUBST(INCLUDES)
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| AC_SUBST(CXXINCLUDES)
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| 
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| machdep=
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| case "$host" in
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| # alpha_mach_dep.s assumes that pointers are not saved in fp registers.
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| # Gcc on a 21264 can spill pointers to fp registers.  Oops.
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| # alpha*-*-*)
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| #    machdep="alpha_mach_dep.lo"
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| #    ;;
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|  mipstx39-*-elf*)
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|     machdep="mips_ultrix_mach_dep.lo"
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|     AC_DEFINE(STACKBASE, __stackbase)
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|     AC_DEFINE(DATASTART_IS_ETEXT)
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|     ;;
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|  mips-dec-ultrix*)
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|     machdep="mips_ultrix_mach-dep.lo"
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|     ;;
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|  mips-*-*)
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|     machdep="mips_sgi_mach_dep.lo"
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|     AC_DEFINE(NO_EXECUTE_PERMISSION)
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|     ;;
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|  sparc-sun-solaris2.3*)
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|     AC_DEFINE(SUNOS53_SHARED_LIB)
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|     ;;
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| esac
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| if test x"$machdep" = x; then
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|    machdep="mach_dep.lo"
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| fi
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| addobjs="$addobjs $machdep"
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| AC_SUBST(addobjs)
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| 
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| dnl As of 4.13a2, the collector will not properly work on Solaris when
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| dnl built with gcc and -O.  So we remove -O in the appropriate case.
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| case "$host" in
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|  sparc-sun-solaris2*)
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|     if test "$GCC" = yes; then
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|        new_CFLAGS=
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|        for i in $CFLAGS; do
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| 	  case "$i" in
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| 	   -O*)
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| 	      ;;
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| 	   *)
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| 	      new_CFLAGS="$new_CFLAGS $i"
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| 	      ;;
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| 	  esac
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|        done
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|        CFLAGS="$new_CFLAGS"
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|     fi
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|     ;;
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| esac
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| 
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| dnl We need to override the top-level CFLAGS.  This is how we do it.
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| MY_CFLAGS="$CFLAGS"
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| AC_SUBST(MY_CFLAGS)
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| 
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| dnl Include defines that have become de facto standard.
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| dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
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| AC_DEFINE(SILENT)
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| AC_DEFINE(NO_SIGNALS)
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| AC_DEFINE(NO_EXECUTE_PERMISSION)
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| AC_DEFINE(ALL_INTERIOR_POINTERS)
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| 
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| dnl By default, make the library as general as possible.
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| AC_DEFINE(JAVA_FINALIZATION)
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| AC_DEFINE(GC_GCJ_SUPPORT)
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| AC_DEFINE(ATOMIC_UNCOLLECTABLE)
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| 
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| dnl This is something of a hack.  When cross-compiling we turn off
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| dnl some functionality.  We also enable the "small" configuration.
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| dnl These is only correct when targetting an embedded system.  FIXME.
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| if test -n "${with_cross_host}"; then
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|    AC_DEFINE(NO_SIGSET)
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|    AC_DEFINE(NO_CLOCK)
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|    AC_DEFINE(SMALL_CONFIG)
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|    AC_DEFINE(NO_DEBUGGING)
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| fi
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| 
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| AC_ARG_ENABLE(full-debug,
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| [  --enable-full-debug	include full support for pointer backtracing etc.],
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| [ if test "$enable_full_debug" = "yes"; then
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|     AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
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|     AC_DEFINE(KEEP_BACK_PTRS)
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|     AC_DEFINE(DBG_HDRS_ALL)
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|     case $host in
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|       x86-*-linux* | i586-*-linux* | i686-*-linux* )
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| 	AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
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| 	AC_DEFINE(SAVE_CALL_COUNT, 8)
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|       ;;
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|     esac ]
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|   fi)
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| 
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| AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
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| 
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| if test "${multilib}" = "yes"; then
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|   multilib_arg="--enable-multilib"
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| else
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|   multilib_arg=
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| fi
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| 
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| AC_OUTPUT(Makefile,,
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| srcdir=${srcdir}
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| host=${host}
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| target=${target}
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| with_multisubdir=${with_multisubdir}
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| ac_configure_args="${multilib_arg} ${ac_configure_args}"
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| CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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| gc_basedir=${gc_basedir}
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| CC="${CC}"
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| DEFS="$DEFS"
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| )
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