main/musl: backport fix to use UTC instead of GMT as default

1 files changed, 137 insertions, 0 deletions

diff --git a/main/musl/0001-use-the-name-UTC-instead-of-GMT-for-UTC-timezone.patch b/main/musl/0001-use-the-name-UTC-instead-of-GMT-for-UTC-timezone.patch
new file mode 100644
index 0000000000..ef751956ea
--- /dev/null
+++ b/main/musl/0001-use-the-name-UTC-instead-of-GMT-for-UTC-timezone.patch
@@ -0,0 +1,137 @@
+From eb7f93c4f6fd0b637a9f8d6e112131b88ad2b00f Mon Sep 17 00:00:00 2001
+From: Natanael Copa <ncopa@alpinelinux.org>
+Date: Thu, 7 Dec 2017 17:54:07 +0100
+Subject: [PATCH] use the name UTC instead of GMT for UTC timezone
+
+notes by maintainer:
+
+both C and POSIX use the term UTC to specify related functionality,
+despite POSIX defining it as something more like UT1 or historical
+(pre-UTC) GMT without leap seconds. neither specifies the associated
+string for %Z. old choice of "GMT" violated principle of least
+surprise for users and some applications/tests. use "UTC" instead.
+---
+ src/time/__tz.c     | 16 ++++++++--------
+ src/time/gmtime_r.c |  4 ++--
+ src/time/timegm.c   |  4 ++--
+ 3 files changed, 12 insertions(+), 12 deletions(-)
+
+diff --git a/src/time/__tz.c b/src/time/__tz.c
+index ffe8d402..8cc96032 100644
+--- a/src/time/__tz.c
++++ b/src/time/__tz.c
+@@ -15,7 +15,7 @@ weak_alias(__tzname, tzname);
+ 
+ static char std_name[TZNAME_MAX+1];
+ static char dst_name[TZNAME_MAX+1];
+-const char __gmt[] = "GMT";
++const char __utc[] = "UTC";
+ 
+ static int dst_off;
+ static int r0[5], r1[5];
+@@ -126,7 +126,7 @@ static void do_tzset()
+ 
+ 	s = getenv("TZ");
+ 	if (!s) s = "/etc/localtime";
+-	if (!*s) s = __gmt;
++	if (!*s) s = __utc;
+ 
+ 	if (old_tz && !strcmp(s, old_tz)) return;
+ 
+@@ -136,7 +136,7 @@ static void do_tzset()
+ 	 * free so as not to pull it into static programs. Growth
+ 	 * strategy makes it so free would have minimal benefit anyway. */
+ 	i = strlen(s);
+-	if (i > PATH_MAX+1) s = __gmt, i = 3;
++	if (i > PATH_MAX+1) s = __utc, i = 3;
+ 	if (i >= old_tz_size) {
+ 		old_tz_size *= 2;
+ 		if (i >= old_tz_size) old_tz_size = i+1;
+@@ -165,12 +165,12 @@ static void do_tzset()
+ 				}
+ 			}
+ 		}
+-		if (!map) s = __gmt;
++		if (!map) s = __utc;
+ 	}
+ 	if (map && (map_size < 44 || memcmp(map, "TZif", 4))) {
+ 		__munmap((void *)map, map_size);
+ 		map = 0;
+-		s = __gmt;
++		s = __utc;
+ 	}
+ 
+ 	zi = map;
+@@ -207,7 +207,7 @@ static void do_tzset()
+ 				}
+ 			}
+ 			if (!__tzname[0]) __tzname[0] = __tzname[1];
+-			if (!__tzname[0]) __tzname[0] = (char *)__gmt;
++			if (!__tzname[0]) __tzname[0] = (char *)__utc;
+ 			if (!__daylight) {
+ 				__tzname[1] = __tzname[0];
+ 				dst_off = __timezone;
+@@ -216,7 +216,7 @@ static void do_tzset()
+ 		}
+ 	}
+ 
+-	if (!s) s = __gmt;
++	if (!s) s = __utc;
+ 	getname(std_name, &s);
+ 	__tzname[0] = std_name;
+ 	__timezone = getoff(&s);
+@@ -413,7 +413,7 @@ const char *__tm_to_tzname(const struct tm *tm)
+ 	const void *p = tm->__tm_zone;
+ 	LOCK(lock);
+ 	do_tzset();
+-	if (p != __gmt && p != __tzname[0] && p != __tzname[1] &&
++	if (p != __utc && p != __tzname[0] && p != __tzname[1] &&
+ 	    (!zi || (uintptr_t)p-(uintptr_t)abbrevs >= abbrevs_end - abbrevs))
+ 		p = "";
+ 	UNLOCK(lock);
+diff --git a/src/time/gmtime_r.c b/src/time/gmtime_r.c
+index 8cbdadcb..cba72447 100644
+--- a/src/time/gmtime_r.c
++++ b/src/time/gmtime_r.c
+@@ -2,7 +2,7 @@
+ #include <errno.h>
+ #include "libc.h"
+ 
+-extern const char __gmt[];
++extern const char __utc[];
+ 
+ struct tm *__gmtime_r(const time_t *restrict t, struct tm *restrict tm)
+ {
+@@ -12,7 +12,7 @@ struct tm *__gmtime_r(const time_t *restrict t, struct tm *restrict tm)
+ 	}
+ 	tm->tm_isdst = 0;
+ 	tm->__tm_gmtoff = 0;
+-	tm->__tm_zone = __gmt;
++	tm->__tm_zone = __utc;
+ 	return tm;
+ }
+ 
+diff --git a/src/time/timegm.c b/src/time/timegm.c
+index b5dae8b6..f444e76e 100644
+--- a/src/time/timegm.c
++++ b/src/time/timegm.c
+@@ -2,7 +2,7 @@
+ #include "time_impl.h"
+ #include <errno.h>
+ 
+-extern const char __gmt[];
++extern const char __utc[];
+ 
+ time_t timegm(struct tm *tm)
+ {
+@@ -15,6 +15,6 @@ time_t timegm(struct tm *tm)
+ 	*tm = new;
+ 	tm->tm_isdst = 0;
+ 	tm->__tm_gmtoff = 0;
+-	tm->__tm_zone = __gmt;
++	tm->__tm_zone = __utc;
+ 	return t;
+ }
+-- 
+2.15.0
+