tmux v2.3 で en_US.UTF-8 決め打ちを止めるpatch。ロケールの修正か wcwidth-cjk 使うの前提。

0012-Unse-locale-as-en_US.UTF-8.patch

From: Youhei SASAKI <uwabami@gfd-dennou.org>
Date: Sat, 4 Feb 2017 03:30:21 +0900
Subject: Unse locale as en_US.UTF-8

Signed-off-by: Youhei SASAKI <uwabami@gfd-dennou.org>
---
 tmux.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

--- a/tmux.c
+++ b/tmux.c
@@ -188,13 +188,11 @@
 	const char	*s;
 	int		 opt, flags, keys;
 
-	if (setlocale(LC_CTYPE, "en_US.UTF-8") == NULL) {
-		if (setlocale(LC_CTYPE, "") == NULL)
-			errx(1, "invalid LC_ALL, LC_CTYPE or LANG");
-		s = nl_langinfo(CODESET);
-		if (strcasecmp(s, "UTF-8") != 0 && strcasecmp(s, "UTF8") != 0)
-			errx(1, "need UTF-8 locale (LC_CTYPE) but have %s", s);
-	}
+	if (setlocale(LC_CTYPE, "") == NULL)
+		errx(1, "invalid LC_ALL, LC_CTYPE or LANG");
+	s = nl_langinfo(CODESET);
+	if (strcasecmp(s, "UTF-8") != 0 && strcasecmp(s, "UTF8") != 0)
+		errx(1, "need UTF-8 locale (LC_CTYPE) but have %s", s);
 
 	setlocale(LC_TIME, "");
 	tzset();