updated for version 7.4.223
Problem:    Still using an older autoconf version.
Solution:   Switch to autoconf 2.69.
diff --git a/src/version.c b/src/version.c
index 3d35254..c901b09 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    223,
+/**/
     222,
 /**/
     221,