[pango] coretext: handle locale set through environment variables

[Kristian Rietveld <kristian src gnome org>]

commit 5ff42dc22274177321ccc698d9388460a2628d2a
Author: Kristian Rietveld <kris loopnest org>
Date:   Fri May 29 22:12:27 2015 +0200

    coretext: handle locale set through environment variables

 pango/pango-language.c |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)
---
diff --git a/pango/pango-language.c b/pango/pango-language.c
index 1247ae7..725559f 100644
--- a/pango/pango-language.c
+++ b/pango/pango-language.c
@@ -205,7 +205,26 @@ _pango_get_lc_ctype (void)
   CFArrayRef languages;
   CFStringRef language;
   gchar ret[16];
+  gchar *p;
+
+  /* Take the same approach as done for Windows above. First we check
+   * if somebody tried to set the locale through environment variables.
+   */
+  p = getenv ("LC_ALL");
+  if (p != NULL)
+    return g_strdup (p);
 
+  p = getenv ("LC_CTYPE");
+  if (p != NULL)
+    return g_strdup (p);
+
+  p = getenv ("LANG");
+  if (p != NULL)
+    return g_strdup (p);
+
+  /* If the environment variables are not set, determine the locale
+   * through the platform-native API.
+   */
   languages = CFLocaleCopyPreferredLanguages ();
   language = CFArrayGetValueAtIndex (languages, 0);