===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/mandoc/Attic/man_hash.c,v
retrieving revision 1.21
retrieving revision 1.22
diff -c -r1.21 -r1.22
*** src/usr.bin/mandoc/Attic/man_hash.c	2015/04/02 22:06:17	1.21
--- src/usr.bin/mandoc/Attic/man_hash.c	2015/04/18 17:01:28	1.22
***************
*** 1,4 ****
! /*	$OpenBSD: man_hash.c,v 1.21 2015/04/02 22:06:17 schwarze Exp $ */
  /*
   * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
   *
--- 1,4 ----
! /*	$OpenBSD: man_hash.c,v 1.22 2015/04/18 17:01:28 schwarze Exp $ */
  /*
   * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
   *
***************
*** 45,58 ****
  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;
  
  	memset(table, UCHAR_MAX, sizeof(table));
  
--- 45,57 ----
  static	unsigned char	 table[26 * HASH_DEPTH];
  
  
  void
  man_hash_init(void)
  {
  	int		 i, j, x;
+ 
+ 	if (*table != '\0')
+ 		return;
  
  	memset(table, UCHAR_MAX, sizeof(table));