diff --git a/xorgversion.m4 b/xorgversion.m4
index 01bffec..421f3ab 100644
--- a/xorgversion.m4
+++ b/xorgversion.m4
@@ -27,7 +27,8 @@ # XORG_RELEASE_VERSION
 # --------------------
 # Adds --with/without-release-string and changes the PACKAGE and
 # PACKAGE_TARNAME to use "$PACKAGE{_TARNAME}-$RELEASE_VERSION".  If
-# no option is given, PACKAGE and PACKAGE_TARNAME are unchanged.
+# no option is given, PACKAGE and PACKAGE_TARNAME are unchanged.  Also
+# defines PACKAGE_VERSION_{MAJOR,MINOR,PATCHLEVEL} for modules to use.
  
 AC_DEFUN([XORG_RELEASE_VERSION],[
 	AC_ARG_WITH(release-version,
@@ -40,4 +41,21 @@ AC_DEFUN([XORG_RELEASE_VERSION],[
 		PACKAGE_TARNAME="$PACKAGE_TARNAME-$RELEASE_VERSION"
 		AC_MSG_NOTICE([Building with package name set to $PACKAGE])
 	fi
+	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_MAJOR],
+		[`echo $PACKAGE_VERSION | sed -ne 's/^\([[^\.]]\+\).*/\1/p'`],
+		[Major version of this package])
+	PVM=`echo $PACKAGE_VERSION | sed -ne 's/^\([[^\.]]\+\)\.\([[^\.]]\+\).*/\2/p'`
+	if test "x$PVM" = "x"; then
+		PVM="0"
+	fi
+	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_MINOR],
+		[$PVM],
+		[Minor version of this package])
+	PVP=`echo $PACKAGE_VERSION | sed -ne 's/^\([[^\.]]\+\)\.\([[^\.]]\+\)\.\([[^\.]]\+\).*/\3/p'`
+	if test "x$PVP" = "x"; then
+		PVP="0"
+	fi
+	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_PATCHLEVEL],
+		[$PVP],
+		[Patch version of this package])
 ])