updated for version 7.4.540
Problem:    Cannot build with tiny and small features. (Taro Muraoka)
Solution:   Add #ifdef around CMD_USER.
diff --git a/src/version.c b/src/version.c
index 9e9e802..57b5d76 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    540,
+/**/
     539,
 /**/
     538,