patch 7.4.1104
Problem:    Various problems building with MzScheme/Racket.
Solution:   Make it work with new versions of Racket. (Yukihiro Nakadaira, Ken
            Takata)
diff --git a/src/version.c b/src/version.c
index 72c4497..baecfc7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1104,
+/**/
     1103,
 /**/
     1102,