[gdm] session: override LANG with user configured language

[Ray Strode <halfline src gnome org>]

commit db94ed31b79c90528d922d705ff3484216817415
Author: Ray Strode <rstrode redhat com>
Date:   Wed Aug 27 09:49:58 2014 -0400

    session: override LANG with user configured language
    
    We need to set LANG based on whats in accountsservice, for the
    language configuration in control-center to work.
    
    This commit partially reverts commit
    
    c672e4e49983d285e829c1ec846d22fbf19bf29a
    
    https://bugzilla.gnome.org/show_bug.cgi?id=730478

 daemon/gdm-session.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/daemon/gdm-session.c b/daemon/gdm-session.c
index 0c52d63..406e42e 100644
--- a/daemon/gdm-session.c
+++ b/daemon/gdm-session.c
@@ -2395,6 +2395,7 @@ set_up_session_environment (GdmSession *self)
 {
         GdmSessionDisplayMode display_mode;
         gchar *desktop_names;
+        const char *locale;
 
         gdm_session_set_environment_variable (self,
                                               "GDMSESSION",
@@ -2413,6 +2414,17 @@ set_up_session_environment (GdmSession *self)
 
         set_up_session_language (self);
 
+        locale = get_default_language_name (self);
+
+        if (locale != NULL && locale[0] != '\0') {
+                gdm_session_set_environment_variable (self,
+                                                      "LANG",
+                                                      locale);
+                gdm_session_set_environment_variable (self,
+                                                      "GDM_LANG",
+                                                      locale);
+        }
+
         display_mode = gdm_session_get_display_mode (self);
         if (display_mode == GDM_SESSION_DISPLAY_MODE_REUSE_VT) {
                 gdm_session_set_environment_variable (self,