diff --git a/Build.sh b/Build.sh
index dbaaadf..c3976e9 100644
--- a/Build.sh
+++ b/Build.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.566 2012/05/07 17:03:03 tg Exp $'
+srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.567 2012/05/09 23:20:42 tg Exp $'
 #-
 # Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
 #		2011, 2012
@@ -672,6 +672,7 @@ SunOS)
 	;;
 syllable)
 	add_cppflags -D_GNU_SOURCE
+	add_cppflags -DMKSH_NO_SIGSUSPEND
 	oswarn=' and will currently not work'
 	;;
 ULTRIX)
@@ -1428,7 +1429,7 @@ else
 		#define EXTERN
 		#define MKSH_INCLUDES_ONLY
 		#include "sh.h"
-		__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.566 2012/05/07 17:03:03 tg Exp $");
+		__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.567 2012/05/09 23:20:42 tg Exp $");
 		int main(void) { printf("Hello, World!\n"); return (0); }
 EOF
 	case $cm in