--- gforth/configure.in	2008/08/19 18:57:19	1.242
+++ gforth/configure.in	2008/10/11 18:42:08	1.249
@@ -20,12 +20,12 @@ dnl Process this file with autoconf to p
 
 dnl We use some automake macros here,
 dnl but don't use automake for creating Makefile.in
-AC_INIT([gforth],[0.6.9-20080716],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
+AC_INIT([gforth],[0.6.9-20081006],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
 AC_PREREQ(2.54)
 #snapshots have numbers major.minor.release-YYYYMMDD
 #note that lexicographic ordering must be heeded.
 #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
-UPDATED="July 16, 2008"
+UPDATED="October 10, 2008"
 AC_SUBST(UPDATED)
 AC_CONFIG_HEADERS(engine/config.h)
 
@@ -617,7 +617,6 @@ else
  M4=m4
 fi
 AC_SUBST(M4)
-AC_DEFINE_UNQUOTED(M4,"$M4",[How to invoke m4])
 AC_MSG_RESULT($M4)
 
 # Find installed Gforth
@@ -666,6 +665,20 @@ case "$host_os" in
 		DIRSEP="/"
 		PATHSEP=":"
 		DEFAULTSYSTEMPREFIX=""
+                #the following magic value was suggested by
+                #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
+                AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
+		;;
+	*linux*)
+		DIRSEP="/"
+		PATHSEP=":"
+		DEFAULTSYSTEMPREFIX=""
+		if test "$wordsize" = 64; then
+		   LTDL_LIBRARY_PATH=`grep 64 /etc/ld.so.conf | tr '[\n]' [:] | sed -e 's/:$//'`
+		   if test -n "$LTDL_LIBRARY_PATH"; then
+		      AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
+		   fi
+		fi
 		;;
 	*)
 		DIRSEP="/"