--- byaccj1.15/src/main.c~	2006-10-16 20:16:16.000000000 +0200
+++ byaccj1.15/src/main.c	2009-02-19 14:38:45.000000000 +0100
@@ -353,10 +353,10 @@
     union_file_name[len + 5] = 'u';
 	output_file_name[len + 5] = 'o';
 
-    mktemp(action_file_name);
-    mktemp(text_file_name);
-    mktemp(union_file_name);
-	mktemp(output_file_name);
+    mkstemp(action_file_name);
+    mkstemp(text_file_name);
+    mkstemp(union_file_name);
+    mkstemp(output_file_name);
 
     len = strlen(file_prefix);