From: Rich Felker <dalias@aerifal.cx>
Date: Tue, 11 Sep 2018 03:04:42 +0000 (-0400)
Subject: use lighter internal stdio lock in getopt error printing
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=cf7db2427f99d784f3d27a4036c1abf41c61db87;p=musl

use lighter internal stdio lock in getopt error printing

the public flockfile interface is significantly heavier because it has
to handle the possibility of caller returning or thread exiting while
holding the lock.
---

diff --git a/src/misc/getopt.c b/src/misc/getopt.c
index cd1f292f..7d7b1167 100644
--- a/src/misc/getopt.c
+++ b/src/misc/getopt.c
@@ -5,6 +5,7 @@
 #include <stdlib.h>
 #include "libc.h"
 #include "locale_impl.h"
+#include "stdio_impl.h"
 
 char *optarg;
 int optind=1, opterr=1, optopt, __optpos, __optreset=0;
@@ -16,12 +17,12 @@ void __getopt_msg(const char *a, const char *b, const char *c, size_t l)
 {
 	FILE *f = stderr;
 	b = __lctrans_cur(b);
-	flockfile(f);
+	FLOCK(f);
 	fputs(a, f)>=0
 	&& fwrite(b, strlen(b), 1, f)
 	&& fwrite(c, 1, l, f)==l
 	&& putc('\n', f);
-	funlockfile(f);
+	FUNLOCK(f);
 }
 
 int getopt(int argc, char * const argv[], const char *optstring)