glib: Update gtimezone.c patch as upstream wants

packages/glib/glib-gtimezone.c.patch

@@ -1,8 +1,8 @@
 Patch submitted at https://bugzilla.gnome.org/show_bug.cgi?id=771304
 
-diff -u -r ../glib-2.48.2/glib/gtimezone.c ./glib/gtimezone.c
---- ../glib-2.48.2/glib/gtimezone.c	2016-08-17 12:07:29.000000000 -0400
-+++ ./glib/gtimezone.c	2016-09-12 16:52:41.864974630 -0400
+diff -u -r ../glib-2.54.2/glib/gtimezone.c ./glib/gtimezone.c
+--- ../glib-2.54.2/glib/gtimezone.c	2017-07-14 01:03:39.000000000 +0200
++++ ./glib/gtimezone.c	2017-12-09 02:03:46.797229494 +0100
 @@ -43,6 +43,13 @@
  #include <windows.h>
  #endif
@@ -17,87 +17,133 @@ diff -u -r ../glib-2.48.2/glib/gtimezone.c ./glib/gtimezone.c
  /**
   * SECTION:timezone
   * @title: GTimeZone
-@@ -396,6 +400,75 @@
- static GBytes*
- zone_info_unix (const gchar *identifier)
- {
+@@ -392,7 +399,105 @@
+   gtz->transitions = NULL;
+ }
+ 
+-#ifdef G_OS_UNIX
 +#ifdef __ANDROID__
-+  /* Android does not have /etc/localtime but uses a system property for the
-+     the current timezone. There are no files under /usr/share/zoneinfo,
-+     instead a single /system/usr/share/zoneinfo/tzdata which are all zoneinfo
-+     files compiled together with the following tool:
-+     https://android.googlesource.com/platform/external/icu/+/master/tools/ZoneCompactor.java */
-+  struct tzdata_header {
-+    char version[12];
-+    uint32_t index_offset, data_offset, zonetab_offset;
++/* Android does not have /etc/localtime but uses a system property for the
++   the current timezone. There are no files under /usr/share/zoneinfo,
++   instead a single /system/usr/share/zoneinfo/tzdata which are all zoneinfo
++   files compiled together with the following tool:
++   https://android.googlesource.com/platform/external/icu/+/master/tools/ZoneCompactor.java */
++static GBytes*
++zone_info_android (const gchar *identifier)
++{
++  struct tzdata_header
++  {
++    char     version[12];
++    uint32_t index_offset;
++    uint32_t data_offset;
++    uint32_t zonetab_offset;
 +  } __attribute__((packed)) header;
 +
-+  struct tzdata_index_entry {
-+    char name[40];
-+    uint32_t offset, length, unused;
++  struct tzdata_index_entry
++  {
++    char     name[40];
++    uint32_t offset;
++    uint32_t length;
++    uint32_t unused;
 +  } __attribute__((packed)) entry;
 +
 +  char sys_timezone[PROP_VALUE_MAX];
-+  if (identifier == NULL) {
-+    if (__system_property_get("persist.sys.timezone", sys_timezone) < 1) {
-+      g_warning("__system_property_get(\"persist.sys.timezone\") failed\n");
-+      return NULL;
++
++  if (identifier == NULL)
++    {
++      if (__system_property_get("persist.sys.timezone", sys_timezone) < 1)
++      {
++        g_warning("__system_property_get(\"persist.sys.timezone\") failed\n");
++        return NULL;
++      }
++      identifier = sys_timezone;
 +    }
-+    identifier = sys_timezone;
++
++  int tzdata_fd = open("/system/usr/share/zoneinfo/tzdata", O_RDONLY);
++  if (tzdata_fd < 0)
++  {
++    g_warning("Failed opening tzdata");
++    return NULL;
 +  }
-+  if (identifier != NULL) {
-+    int tzdata_fd = open("/system/usr/share/zoneinfo/tzdata", O_RDONLY);
-+    if (tzdata_fd < 0) {
-+      g_warning("Failed opening tzdata");
-+      return NULL;
-+    }
-+    if (read(tzdata_fd, &header, sizeof(header)) < (ssize_t) sizeof(header)) {
-+      g_warning("Failed reading tzdata header");
-+      goto error;
-+    }
-+    header.index_offset = htonl(header.index_offset);
-+    header.data_offset = htonl(header.data_offset);
 +
-+    uint32_t current_offset = header.index_offset;
-+    while (current_offset < header.data_offset) {
-+      if (read(tzdata_fd, &entry, sizeof(entry)) < (ssize_t) sizeof(entry)) {
++  if (read(tzdata_fd, &header, sizeof(header)) < (ssize_t) sizeof(header))
++  {
++    g_warning("Failed reading tzdata header");
++    goto error;
++  }
++
++  header.index_offset = htonl(header.index_offset);
++  header.data_offset = htonl(header.data_offset);
++
++  uint32_t current_offset = header.index_offset;
++  while (current_offset < header.data_offset)
++    {
++      if (read(tzdata_fd, &entry, sizeof(entry)) < (ssize_t) sizeof(entry))
++      {
 +        g_warning("Failed reading tzdata index entry");
 +        goto error;
 +      }
-+      if (strcmp(entry.name, identifier) == 0) {
-+        entry.offset = htonl(entry.offset);
-+        entry.length = htonl(entry.length);
-+        if (entry.length == 0) {
-+          g_warning("Invalid tzdata entry with length zero");
-+          goto error;
-+        }
-+        if (lseek(tzdata_fd, header.data_offset + entry.offset, SEEK_SET) == -1) {
-+          g_warning("Failed seeking to tzdata entry");
-+          goto error;
-+        }
-+        guint8* data = g_malloc(entry.length);
-+        if (read(tzdata_fd, data, entry.length) < entry.length) {
-+          g_warning("Failed reading tzdata entry");
-+          g_free(data);
-+          goto error;
++
++      if (strcmp(entry.name, identifier) == 0)
++        {
++          entry.offset = htonl(entry.offset);
++          entry.length = htonl(entry.length);
++          if (entry.length == 0)
++            {
++              g_warning("Invalid tzdata entry with length zero");
++              goto error;
++            }
++
++          if (lseek(tzdata_fd, header.data_offset + entry.offset, SEEK_SET) == -1)
++            {
++              g_warning("Failed seeking to tzdata entry");
++              goto error;
++            }
++
++          guint8* data = g_malloc(entry.length);
++          if (read(tzdata_fd, data, entry.length) < entry.length)
++            {
++              g_warning("Failed reading tzdata entry");
++              g_free(data);
++              goto error;
++            }
++
++          close(tzdata_fd);
++          return g_bytes_new_take(data, entry.length);
 +        }
-+        close(tzdata_fd);
-+        return g_bytes_new_take(data, entry.length);
-+      }
 +    }
++
 +error:
-+    close(tzdata_fd);
-+  }
++  close(tzdata_fd);
++
 +  return NULL;
-+#else
-   gchar *filename;
-   GMappedFile *file = NULL;
-   GBytes *zoneinfo = NULL;
-@@ -434,6 +497,7 @@
-     }
-   g_free (filename);
++}
++
++#elif defined(G_OS_UNIX)
++
+ static GBytes*
+ zone_info_unix (const gchar *identifier)
+ {
+@@ -436,6 +541,10 @@
    return zoneinfo;
-+#endif
  }
  
++#endif
++
++#ifdef G_OS_UNIX
++
  static void
+ init_zone_from_iana_info (GTimeZone *gtz, GBytes *zoneinfo)
+ {
+@@ -1387,7 +1496,11 @@
+   if (tz->t_info == NULL)
+     {
+ #ifdef G_OS_UNIX
++# ifdef __ANDROID__
++      GBytes *zoneinfo = zone_info_android (identifier);
++# else
+       GBytes *zoneinfo = zone_info_unix (identifier);
++# endif
+       if (!zoneinfo)
+         zone_for_constant_offset (tz, "UTC");
+       else