configure.ac: Update all AC_DEFINEs to newer style.

2004-09-27  Kelley Cook  <kcook@gcc.gnu.org>

	* configure.ac: Update all AC_DEFINEs to newer style.
	* configure: Regenerate.
	* include/gc_config.h.in: Regenerate.

From-SVN: r88206

4 files changed, 273 insertions, 101 deletions

diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog
index 4d48b580265..68dd4204e56 100644
--- a/boehm-gc/ChangeLog
+++ b/boehm-gc/ChangeLog
@@ -1,3 +1,9 @@
+2004-09-27  Kelley Cook  <kcook@gcc.gnu.org>
+
+	* configure.ac: Update all AC_DEFINEs to newer style.
+	* configure: Regenerate.
+	* include/gc_config.h.in: Regenerate.
+
 2004-08-27  Hans Boehm  <Hans.Boehm@hp.com>
 
 	* backgraph.c, gc_priv.h (GC_traverse_back_graph,
diff --git a/boehm-gc/configure b/boehm-gc/configure
index 7cbcb5f2ac0..68e7411250f 100755
--- a/boehm-gc/configure
+++ b/boehm-gc/configure
@@ -967,7 +967,7 @@ esac
     else
       echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
     fi
-    cd "$ac_popdir"
+    cd $ac_popdir
   done
 fi
 
@@ -2522,7 +2522,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2580,7 +2581,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2696,7 +2698,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2750,7 +2753,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2795,7 +2799,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2839,7 +2844,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -3197,7 +3203,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_cxx_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -3255,7 +3262,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_cxx_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -3326,7 +3334,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_cxx_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -3370,7 +3379,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_cxx_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -4731,7 +4741,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
 case $host in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 4734 "configure"' > conftest.$ac_ext
+  echo '#line 4744 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -4878,7 +4888,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -5322,21 +5333,25 @@ case "$THREADS" in
     THREADLIBS=-lpthread
     case "$host" in
      x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_LINUX_THREADS 1
 _ACEOF
 
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define _REENTRANT 1
 _ACEOF
 
         if test "${enable_parallel_mark}" = yes; then
-	  cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define PARALLEL_MARK 1
 _ACEOF
 
 	fi
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define THREAD_LOCAL_ALLOC 1
 _ACEOF
 
@@ -5352,7 +5367,8 @@ _ACEOF
 
 	;;
      *-*-aix*)
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_AIX_THREADS 1
 _ACEOF
 
@@ -5364,11 +5380,13 @@ _ACEOF
      *-*-hpux*)
 	{ echo "$as_me:$LINENO: WARNING: \"Only HP/UX 11 threads are supported.\"" >&5
 echo "$as_me: WARNING: \"Only HP/UX 11 threads are supported.\"" >&2;}
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_HPUX_THREADS 1
 _ACEOF
 
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define _POSIX_C_SOURCE 199506L
 _ACEOF
 
@@ -5387,7 +5405,8 @@ _ACEOF
      *-*-freebsd*)
 	{ echo "$as_me:$LINENO: WARNING: \"FreeBSD does not yet fully support threads with Boehm GC.\"" >&5
 echo "$as_me: WARNING: \"FreeBSD does not yet fully support threads with Boehm GC.\"" >&2;}
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_FREEBSD_THREADS 1
 _ACEOF
 
@@ -5395,29 +5414,34 @@ _ACEOF
 	THREADLIBS=-pthread
       	;;
      *-*-solaris*)
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_SOLARIS_THREADS 1
 _ACEOF
 
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_SOLARIS_PTHREADS 1
 _ACEOF
 
 	;;
      *-*-irix*)
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_IRIX_THREADS 1
 _ACEOF
 
 	;;
      *-*-cygwin*)
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_WIN32_THREADS 1
 _ACEOF
 
 	;;
      *-*-darwin*)
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_DARWIN_THREADS 1
 _ACEOF
 
@@ -5433,7 +5457,8 @@ _ACEOF
 	fi
 	;;
      *-*-osf*)
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_OSF1_THREADS 1
 _ACEOF
 
@@ -5476,11 +5501,13 @@ _ACEOF
 #define THREAD_LOCAL_ALLOC 1
 _ACEOF
 
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define GC_DGUX386_THREADS 1
 _ACEOF
 
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define DGUX_THREADS 1
 _ACEOF
 
@@ -5576,7 +5603,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -5630,7 +5658,8 @@ case "$TARGET_ECOS" in
    no)
       ;;
    *)
-      cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define ECOS 1
 _ACEOF
 
@@ -5721,18 +5750,21 @@ echo "$as_me: WARNING: OpenBSD/Alpha without dlopen(). Shared library support is
     machdep="alpha_mach_dep.lo"
     ;;
  i?86-*-solaris2.[89] | i?86-*-solaris2.1?)
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define SOLARIS25_PROC_VDB_BUG_FIXED 1
 _ACEOF
 
     ;;
  mipstx39-*-elf*)
     machdep="mips_ultrix_mach_dep.lo"
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define STACKBASE __stackbase
 _ACEOF
 
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define DATASTART_IS_ETEXT 1
 _ACEOF
 
@@ -5752,7 +5784,8 @@ _ACEOF
     ;;
  sparc-sun-solaris2.3)
     machdep="sparc_mach_dep.lo"
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define SUNOS53_SHARED_LIB 1
 _ACEOF
 
@@ -5761,7 +5794,8 @@ _ACEOF
     machdep="sparc_mach_dep.lo"
     ;;
  ia64-*-*)
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define NO_EXECUTE_PERMISSION 1
 _ACEOF
 
@@ -6068,7 +6102,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -6238,7 +6273,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -6301,7 +6337,8 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -6458,38 +6495,46 @@ esac
 MY_CFLAGS="$CFLAGS"
 
 
+
 cat >>confdefs.h <<\_ACEOF
 #define SILENT 1
 _ACEOF
 
+
 cat >>confdefs.h <<\_ACEOF
 #define NO_SIGNALS 1
 _ACEOF
 
+
 cat >>confdefs.h <<\_ACEOF
 #define ALL_INTERIOR_POINTERS 1
 _ACEOF
 
 
+
 cat >>confdefs.h <<\_ACEOF
 #define JAVA_FINALIZATION 1
 _ACEOF
 
+
 cat >>confdefs.h <<\_ACEOF
 #define GC_GCJ_SUPPORT 1
 _ACEOF
 
+
 cat >>confdefs.h <<\_ACEOF
 #define ATOMIC_UNCOLLECTABLE 1
 _ACEOF
 
 
 if test -n "${with_cross_host}"; then
-   cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define NO_SIGSET 1
 _ACEOF
 
-   cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define NO_DEBUGGING 1
 _ACEOF
 
@@ -6501,17 +6546,20 @@ if test "${enable_gc_debug+set}" = set; then
    if test "$enable_gc_debug" = "yes"; then
     { echo "$as_me:$LINENO: WARNING: \"Must define GC_DEBUG and use debug alloc. in clients.\"" >&5
 echo "$as_me: WARNING: \"Must define GC_DEBUG and use debug alloc. in clients.\"" >&2;}
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define KEEP_BACK_PTRS 1
 _ACEOF
 
-    cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define DBG_HDRS_ALL 1
 _ACEOF
 
     case $host in
       ia64-*-linux* )
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define MAKE_BACK_GRAPH 1
 _ACEOF
 
@@ -6523,7 +6571,8 @@ _ACEOF
 
 	{ echo "$as_me:$LINENO: WARNING: \"Client must not use -fomit-frame-pointer.\"" >&5
 echo "$as_me: WARNING: \"Client must not use -fomit-frame-pointer.\"" >&2;}
-	cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
 #define SAVE_CALL_COUNT 8
 _ACEOF
 
@@ -7501,6 +7550,11 @@ esac
   *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
   esac
 
+  if test x"$ac_file" != x-; then
+    { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+    rm -f "$ac_file"
+  fi
   # Let's still pretend it is `configure' which instantiates (i.e., don't
   # use $as_me), people would be surprised to read:
   #    /* config.h.  Generated by config.status.  */
@@ -7539,12 +7593,6 @@ echo "$as_me: error: cannot find input file: $f" >&2;}
 	 fi;;
       esac
     done` || { (exit 1); exit 1; }
-
-  if test x"$ac_file" != x-; then
-    { echo "$as_me:$LINENO: creating $ac_file" >&5
-echo "$as_me: creating $ac_file" >&6;}
-    rm -f "$ac_file"
-  fi
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF
   sed "$ac_vpsub
diff --git a/boehm-gc/configure.ac b/boehm-gc/configure.ac
index b98d8fbbc00..69ee3d8d5a8 100644
--- a/boehm-gc/configure.ac
+++ b/boehm-gc/configure.ac
@@ -126,59 +126,59 @@ case "$THREADS" in
     THREADLIBS=-lpthread
     case "$host" in
      x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
-	AC_DEFINE(GC_LINUX_THREADS)
-	AC_DEFINE(_REENTRANT)
+	AC_DEFINE(GC_LINUX_THREADS,1,[support for Xavier Leroy's Linux threads])
+	AC_DEFINE(_REENTRANT,1,[Use reentrant code])
         if test "${enable_parallel_mark}" = yes; then
-	  AC_DEFINE(PARALLEL_MARK)
+	  AC_DEFINE(PARALLEL_MARK,1,[allow the marker to run in multiple threads])
 	fi
-	AC_DEFINE(THREAD_LOCAL_ALLOC)
+	AC_DEFINE(THREAD_LOCAL_ALLOC,1,[define GC_local_malloc() & GC_local_malloc_atomic()])
 	;;
      *-*-linux*)
-	AC_DEFINE(GC_LINUX_THREADS)
-	AC_DEFINE(_REENTRANT)
+	AC_DEFINE(GC_LINUX_THREADS,1)
+	AC_DEFINE(_REENTRANT,1)
 	;;
      *-*-aix*)
-	AC_DEFINE(GC_AIX_THREADS)
-	AC_DEFINE(_REENTRANT)
+	AC_DEFINE(GC_AIX_THREADS,1,[support AIX threads])
+	AC_DEFINE(_REENTRANT,1)
 	;;
      *-*-hpux*)
 	AC_MSG_WARN("Only HP/UX 11 threads are supported.")
-	AC_DEFINE(GC_HPUX_THREADS)
-	AC_DEFINE(_POSIX_C_SOURCE,199506L)
+	AC_DEFINE(GC_HPUX_THREADS,1,[enables support for HP/UX 11 pthreads])
+	AC_DEFINE(_POSIX_C_SOURCE,199506L,[POSIX version of C Source])
 	if test "${enable_parallel_mark}" = yes; then
-	  AC_DEFINE(PARALLEL_MARK)
+	  AC_DEFINE(PARALLEL_MARK,1)
 	fi
-	AC_DEFINE(THREAD_LOCAL_ALLOC)
+	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)
+	AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])
 	AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
 	THREADLIBS=-pthread
       	;;
      *-*-solaris*)
-	AC_DEFINE(GC_SOLARIS_THREADS)
-	AC_DEFINE(GC_SOLARIS_PTHREADS)
+	AC_DEFINE(GC_SOLARIS_THREADS,1,[support for Solaris (thr_) threads])
+	AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
 	;;
      *-*-irix*)
-	AC_DEFINE(GC_IRIX_THREADS)
+	AC_DEFINE(GC_IRIX_THREADS,1,[support for Irix pthreads])
 	;;
      *-*-cygwin*)
-	AC_DEFINE(GC_WIN32_THREADS)
+	AC_DEFINE(GC_WIN32_THREADS,1,[support for win32 threads])
 	;;
      *-*-darwin*)
-	AC_DEFINE(GC_DARWIN_THREADS)
-	AC_DEFINE(THREAD_LOCAL_ALLOC)
+	AC_DEFINE(GC_DARWIN_THREADS,1,[support for Mac OS X pthreads])
+	AC_DEFINE(THREAD_LOCAL_ALLOC,1)
 	if test "${enable_parallel_mark}" = yes; then
-	  AC_DEFINE(PARALLEL_MARK)
+	  AC_DEFINE(PARALLEL_MARK,1)
 	fi
 	;;
      *-*-osf*)
-	AC_DEFINE(GC_OSF1_THREADS)
+	AC_DEFINE(GC_OSF1_THREADS,1,[support for Tru64 pthreads])
         if test "${enable_parallel_mark}" = yes; then
-	  AC_DEFINE(PARALLEL_MARK)
-	  AC_DEFINE(THREAD_LOCAL_ALLOC)
+	  AC_DEFINE(PARALLEL_MARK,1)
+	  AC_DEFINE(THREAD_LOCAL_ALLOC,1)
 	  # May want to enable it in other cases, too.
 	  # Measurements havent yet been done.
 	fi
@@ -188,7 +188,7 @@ case "$THREADS" in
     esac
     ;;
  win32)
-    AC_DEFINE(GC_WIN32_THREADS)
+    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.
     ;;
@@ -198,19 +198,19 @@ AC_MSG_RESULT($THREADLIBS)
     # Use pthread GCC  switch
     THREADLIBS=-pthread
     if test "${enable_parallel_mark}" = yes; then
-        AC_DEFINE(PARALLEL_MARK)
+        AC_DEFINE(PARALLEL_MARK,1)
     fi
-    AC_DEFINE(THREAD_LOCAL_ALLOC)
-    AC_DEFINE(GC_DGUX386_THREADS)
-    AC_DEFINE(DGUX_THREADS)
+    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)
-    AC_DEFINE(_REENTRANT)
+    AC_DEFINE(GC_AIX_THREADS,1)
+    AC_DEFINE(_REENTRANT,1)
     ;;
  decosf1 | irix | mach | os2 | solaris | dce | vxworks)
     AC_MSG_ERROR(thread package $THREADS not yet supported)
@@ -260,7 +260,7 @@ case "$TARGET_ECOS" in
    no)
       ;;
    *)
-      AC_DEFINE(ECOS)
+      AC_DEFINE(ECOS,1,[Target is ECOS])
       AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"
       addobjs="$addobjs ecos.lo"
       ;;
@@ -313,12 +313,12 @@ case "$host" in
     machdep="alpha_mach_dep.lo"
     ;;
  i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
-    AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED)
+    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)
-    AC_DEFINE(DATASTART_IS_ETEXT)
+    AC_DEFINE(STACKBASE, __stackbase,[No description])
+    AC_DEFINE(DATASTART_IS_ETEXT,1,[No description])
     ;;
  mips-dec-ultrix*)
     machdep="mips_ultrix_mach-dep.lo"
@@ -335,13 +335,13 @@ case "$host" in
     ;;
  sparc-sun-solaris2.3)
     machdep="sparc_mach_dep.lo"
-    AC_DEFINE(SUNOS53_SHARED_LIB)
+    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)
+    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
@@ -409,40 +409,40 @@ 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(ALL_INTERIOR_POINTERS)
+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)
-AC_DEFINE(GC_GCJ_SUPPORT)
-AC_DEFINE(ATOMIC_UNCOLLECTABLE)
+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)
-   AC_DEFINE(NO_DEBUGGING)
+   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)
-    AC_DEFINE(DBG_HDRS_ALL)
+    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)
+	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)
+	AC_DEFINE(MAKE_BACK_GRAPH,1)
 	AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
-	AC_DEFINE(SAVE_CALL_COUNT, 8)
+	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)
+	AC_DEFINE(MAKE_BACK_GRAPH,1)
       ;;
     esac 
   fi])
diff --git a/boehm-gc/include/gc_config.h.in b/boehm-gc/include/gc_config.h.in
index fbd244610aa..60ffb9741b6 100644
--- a/boehm-gc/include/gc_config.h.in
+++ b/boehm-gc/include/gc_config.h.in
@@ -1,34 +1,152 @@
+/* include/gc_config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* allows all pointers to the interior of objects to be recognized */
 #undef ALL_INTERIOR_POINTERS
+
+/* include code for GC_malloc_atomic_uncollectable */
 #undef ATOMIC_UNCOLLECTABLE
+
+/* No description */
 #undef DATASTART_IS_ETEXT
+
+/* Make sure that all objects have debug headers */
 #undef DBG_HDRS_ALL
+
+/* No description */
 #undef DGUX_THREADS
+
+/* Target is ECOS */
 #undef ECOS
+
+/* support AIX threads */
 #undef GC_AIX_THREADS
+
+/* support for Mac OS X pthreads */
 #undef GC_DARWIN_THREADS
+
+/* support for DB/UX on I386 threads */
 #undef GC_DGUX386_THREADS
+
+/* support FreeBSD threads */
 #undef GC_FREEBSD_THREADS
+
+/* include support for gcj */
 #undef GC_GCJ_SUPPORT
+
+/* enables support for HP/UX 11 pthreads */
 #undef GC_HPUX_THREADS
+
+/* support for Irix pthreads */
 #undef GC_IRIX_THREADS
+
+/* support for Xavier Leroy's Linux threads */
 #undef GC_LINUX_THREADS
+
+/* support for Tru64 pthreads */
 #undef GC_OSF1_THREADS
+
+/* support for Solaris pthreads */
 #undef GC_SOLARIS_PTHREADS
+
+/* support for Solaris (thr_) threads */
 #undef GC_SOLARIS_THREADS
+
+/* support for win32 threads */
 #undef GC_WIN32_THREADS
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* make it somewhat safer to finalize objects out of order */
 #undef JAVA_FINALIZATION
+
+/* Add code to save back pointers */
 #undef KEEP_BACK_PTRS
+
+/* Enable GC_PRINT_BACK_HEIGHT environment variable */
 #undef MAKE_BACK_GRAPH
+
+/* removes GC_dump */
 #undef NO_DEBUGGING
+
+/* cause some or all of the heap to not have execute permission */
 #undef NO_EXECUTE_PERMISSION
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+#undef NO_MINUS_C_MINUS_O
+
+/* does not disable signals */
 #undef NO_SIGNALS
+
+/* use empty GC_disable_signals and GC_enable_signals */
 #undef NO_SIGSET
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* allow the marker to run in multiple threads */
 #undef PARALLEL_MARK
+
+/* number of call frames saved with objects allocated through the debugging
+   interface */
 #undef SAVE_CALL_COUNT
+
+/* disables statistics printing */
 #undef SILENT
+
+/* PROC_VDB in Solaris 2.5 gives wrong values for dirty bits */
 #undef SOLARIS25_PROC_VDB_BUG_FIXED
+
+/* No description */
 #undef STACKBASE
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Avoid Solaris 5.3 dynamic library bug */
 #undef SUNOS53_SHARED_LIB
+
+/* define GC_local_malloc() & GC_local_malloc_atomic() */
 #undef THREAD_LOCAL_ALLOC
+
+/* POSIX version of C Source */
 #undef _POSIX_C_SOURCE
+
+/* Use reentrant code */
 #undef _REENTRANT