===================================================================
RCS file: /cvs/mandoc/term_ascii.c,v
retrieving revision 1.49
retrieving revision 1.52
diff -u -p -r1.49 -r1.52
--- mandoc/term_ascii.c	2015/10/06 18:32:20	1.49
+++ mandoc/term_ascii.c	2015/11/12 21:50:03	1.52
@@ -1,4 +1,4 @@
-/*	$Id: term_ascii.c,v 1.49 2015/10/06 18:32:20 schwarze Exp $ */
+/*	$Id: term_ascii.c,v 1.52 2015/11/12 21:50:03 schwarze Exp $ */
 /*
  * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
@@ -38,8 +38,7 @@
 #include "manconf.h"
 #include "main.h"
 
-static	struct termp	 *ascii_init(enum termenc, const struct mchars *,
-				const struct manoutput *);
+static	struct termp	 *ascii_init(enum termenc, const struct manoutput *);
 static	int		  ascii_hspan(const struct termp *,
 				const struct roffsu *);
 static	size_t		  ascii_width(const struct termp *, int);
@@ -59,8 +58,7 @@ static	size_t		  locale_width(const struct termp *, in
 
 
 static struct termp *
-ascii_init(enum termenc enc, const struct mchars *mchars,
-	const struct manoutput *outopts)
+ascii_init(enum termenc enc, const struct manoutput *outopts)
 {
 #if HAVE_WCHAR
 	char		*v;
@@ -69,7 +67,6 @@ ascii_init(enum termenc enc, const struct mchars *mcha
 
 	p = mandoc_calloc(1, sizeof(struct termp));
 
-	p->symtab = mchars;
 	p->line = 1;
 	p->tabwidth = 5;
 	p->defrmargin = p->lastrmargin = 78;
@@ -91,8 +88,16 @@ ascii_init(enum termenc enc, const struct mchars *mcha
 
 #if HAVE_WCHAR
 	if (TERMENC_ASCII != enc) {
+
+		/*
+		 * Do not change any of this to LC_ALL.  It might break
+		 * the formatting by subtly changing the behaviour of
+		 * various functions, for example strftime(3).  As a
+		 * worst case, it might even cause buffer overflows.
+		 */
+
 		v = TERMENC_LOCALE == enc ?
-		    setlocale(LC_ALL, "") :
+		    setlocale(LC_CTYPE, "") :
 		    setlocale(LC_CTYPE, "en_US.UTF-8");
 		if (NULL != v && MB_CUR_MAX > 1) {
 			p->enc = enc;
@@ -119,24 +124,24 @@ ascii_init(enum termenc enc, const struct mchars *mcha
 }
 
 void *
-ascii_alloc(const struct mchars *mchars, const struct manoutput *outopts)
+ascii_alloc(const struct manoutput *outopts)
 {
 
-	return ascii_init(TERMENC_ASCII, mchars, outopts);
+	return ascii_init(TERMENC_ASCII, outopts);
 }
 
 void *
-utf8_alloc(const struct mchars *mchars, const struct manoutput *outopts)
+utf8_alloc(const struct manoutput *outopts)
 {
 
-	return ascii_init(TERMENC_UTF8, mchars, outopts);
+	return ascii_init(TERMENC_UTF8, outopts);
 }
 
 void *
-locale_alloc(const struct mchars *mchars, const struct manoutput *outopts)
+locale_alloc(const struct manoutput *outopts)
 {
 
-	return ascii_init(TERMENC_LOCALE, mchars, outopts);
+	return ascii_init(TERMENC_LOCALE, outopts);
 }
 
 static void
@@ -246,7 +251,6 @@ ascii_hspan(const struct termp *p, const struct roffsu
 		r = su->scale * 0.24;
 		break;
 	case SCALE_VS:
-		/* FALLTHROUGH */
 	case SCALE_PC:
 		r = su->scale * 40.0;
 		break;
@@ -254,7 +258,6 @@ ascii_hspan(const struct termp *p, const struct roffsu
 		r = su->scale * 10.0 / 3.0;
 		break;
 	case SCALE_EN:
-		/* FALLTHROUGH */
 	case SCALE_EM:
 		r = su->scale * 24.0;
 		break;