diff --git a/Build.sh b/Build.sh
index 2bb0891..b40b36e 100644
--- a/Build.sh
+++ b/Build.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.347 2008/07/17 15:17:46 tg Exp $'
+srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.348 2008/07/18 11:34:20 tg Exp $'
 #-
 # Environment used: CC CFLAGS CPPFLAGS LDFLAGS LIBS NOWARN NROFF TARGET_OS
 # CPPFLAGS recognised:	MKSH_SMALL MKSH_ASSUME_UTF8 MKSH_NOPWNAM MKSH_NOVI
@@ -925,13 +925,13 @@ EOF
 ac_testn sig_t <<-'EOF'
 	#include <sys/types.h>
 	#include <signal.h>
-	int main(void) { return ((int)(sig_t)0); }
+	int main(void) { return ((ptrdiff_t)(sig_t)0); }
 EOF
 
 ac_testn sighandler_t '!' sig_t 0 <<-'EOF'
 	#include <sys/types.h>
 	#include <signal.h>
-	int main(void) { return ((int)(sighandler_t)0); }
+	int main(void) { return ((ptrdiff_t)(sighandler_t)0); }
 EOF
 if test 1 = $HAVE_SIGHANDLER_T; then
 	CPPFLAGS="$CPPFLAGS -Dsig_t=sighandler_t"
@@ -941,7 +941,7 @@ fi
 ac_testn __sighandler_t '!' sig_t 0 <<-'EOF'
 	#include <sys/types.h>
 	#include <signal.h>
-	int main(void) { return ((int)(__sighandler_t)0); }
+	int main(void) { return ((ptrdiff_t)(__sighandler_t)0); }
 EOF
 if test 1 = $HAVE___SIGHANDLER_T; then
 	CPPFLAGS="$CPPFLAGS -Dsig_t=__sighandler_t"