$NetBSD$

fix void main.

--- Config/bytecopy.c~	1998-03-22 23:26:53.000000000 +0000
+++ Config/bytecopy.c
@@ -3,7 +3,7 @@
 
 char buffer[27];
 
-void main (void)
+int main (void)
 {
   COPY(buffer,"abcdefghijklmnopqrstuvwxyz",27);
   if (strcmp(buffer,"abcdefghijklmnopqrstuvwxyz") != 0) exit(1);
