===================================================================
RCS file: /cvs/mandoc/configure,v
retrieving revision 1.36
retrieving revision 1.37
diff -u -p -r1.36 -r1.37
--- mandoc/configure	2015/11/07 21:31:22	1.36
+++ mandoc/configure	2015/11/26 07:42:11	1.37
@@ -339,6 +339,7 @@ __HEREDOC__
 
 if [ ${HAVE_ERR} -eq 0 ]; then
 	echo "extern	void	  err(int, const char *, ...);"
+	echo "extern	void	  errx(int, const char *, ...);"
 	echo "extern	void	  warn(const char *, ...);"
 	echo "extern	void	  warnx(const char *, ...);"
 fi