cogl: Bind the locale dir for the Cogl domain

dgettext (which Cogl is using) doesn't work unless you first tell
gettext where the locale dir is for the library's domain. This just
adds the necessary calls into _cogl_init.

https://bugzilla.gnome.org/show_bug.cgi?id=658700

Reviewed-by: Robert Bragg <robert@linux.intel.com>

cogl/Makefile.am

@@ -31,6 +31,7 @@ AM_CPPFLAGS = \
 	-DCOGL_GL_LIBNAME=\"$(COGL_GL_LIBNAME)\" \
 	-DCOGL_GLES1_LIBNAME=\"$(COGL_GLES1_LIBNAME)\" \
 	-DCOGL_GLES2_LIBNAME=\"$(COGL_GLES2_LIBNAME)\" \
+	-DCOGL_LOCALEDIR=\""$(localedir)"\" \
 	$(NULL)
 
 AM_CFLAGS = $(COGL_DEP_CFLAGS) $(COGL_EXTRA_CFLAGS) $(MAINTAINER_CFLAGS)

cogl/cogl.c

@@ -30,6 +30,7 @@
 #include <string.h>
 #include <math.h>
 #include <stdlib.h>
+#include <glib/gi18n-lib.h>
 
 #include "cogl-debug.h"
 #include "cogl-internal.h"
@@ -1121,6 +1122,9 @@ _cogl_init (void)
 
   if (g_once_init_enter (&init_status))
     {
+      bindtextdomain (GETTEXT_PACKAGE, COGL_LOCALEDIR);
+      bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+
       g_type_init ();
 
       _cogl_config_read ();