$NetBSD$

--- psbook.c.orig	2011-08-02 13:48:35.000000000 +0000
+++ psbook.c
@@ -32,7 +32,7 @@ static void usage(void)
 }
 
 
-void main(int argc, char *argv[])
+int main(int argc, char *argv[])
 {
    int signature = 0;
    int currentpg, maxpage;
