updated for version 7.4.474

Problem:    AIX compiler can't handle // comment.  Issue 265.
Solution:   Remove that line.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    474,
 /**/
     473,
 /**/