===================================================================
RCS file: /cvs/mandoc/Attic/man_hash.c,v
retrieving revision 1.31
retrieving revision 1.32
diff -u -p -r1.31 -r1.32
--- mandoc/Attic/man_hash.c	2015/04/02 22:48:17	1.31
+++ mandoc/Attic/man_hash.c	2015/04/18 17:01:58	1.32
@@ -1,4 +1,4 @@
-/*	$Id: man_hash.c,v 1.31 2015/04/02 22:48:17 schwarze Exp $ */
+/*	$Id: man_hash.c,v 1.32 2015/04/18 17:01:58 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -47,14 +47,13 @@
 static	unsigned char	 table[26 * HASH_DEPTH];
 
 
-/*
- * XXX - this hash has global scope, so if intended for use as a library
- * with multiple callers, it will need re-invocation protection.
- */
 void
 man_hash_init(void)
 {
 	int		 i, j, x;
+
+	if (*table != '\0')
+		return;
 
 	memset(table, UCHAR_MAX, sizeof(table));