updated for version 7.4.650
Problem:    Configure check may fail because the dl library is not used.
Solution:   Put "-ldl" in LIBS rather than LDFLAGS. (Oazki Kiichi)
diff --git a/src/version.c b/src/version.c
index 4397456..92fec40 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    650,
+/**/
     649,
 /**/
     648,