updated for version 7.4.299
Problem:    When running configure twice DYNAMIC_PYTHON_DLL may become empty.
Solution:   Use AC_CACHE_VAL. (Ken Takata)
diff --git a/src/version.c b/src/version.c
index 1a1755e..38361ce 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    299,
+/**/
     298,
 /**/
     297,