$OpenBSD: patch-troff_input_cc,v 1.1 2010/05/09 21:26:54 robert Exp $
--- troff/input.cc.orig	Sun May  9 23:21:57 2010
+++ troff/input.cc	Sun May  9 23:22:15 2010
@@ -75,6 +75,9 @@ void vjustify();
 #endif /* COLUMN */
 void transparent();
 void transparent_file();
+void process_input_stack();
+extern void end_diversions();
+extern void title();
 
 const char *program_name = 0;
 token tok;