$OpenBSD: patch-doc_Makefile_in,v 1.22 2014/09/02 11:09:38 robert Exp $
--- doc/Makefile.in.orig	Sun Aug 24 11:53:43 2014
+++ doc/Makefile.in	Mon Sep  1 18:00:45 2014
@@ -665,7 +665,7 @@ $(BUILT_SOURCES): manual.xml
 	@if [ -z $(PROG_XMLTO) ]; then \
 		echo Please install xmlto to generate manual pages; \
 	else \
-		LC_ALL=en_US.UTF-8 $(PROG_XMLTO) man ${top_srcdir}/doc/manual.xml; \
+		LC_ALL=C $(PROG_XMLTO) man ${top_srcdir}/doc/manual.xml; \
 	fi
 
 # force allpages to wait on output from xmlto
