[cogl] renderer: Make COGL_RENDERER / COGL_DRIVER env. variables case insensitive

[Neil Roberts <nroberts src gnome org>]

commit 6e37cebc7a5ca8aab51d866bca9916c0b5483728
Author: Rob Bradford <rob linux intel com>
Date:   Fri Dec 9 17:13:17 2011 +0000

    renderer: Make COGL_RENDERER / COGL_DRIVER env. variables case insensitive
    
    This will make it much more user friendly :-)
    
    Reviewed-by: Neil Roberts <neil linux intel com>

 cogl/cogl-renderer.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/cogl/cogl-renderer.c b/cogl/cogl-renderer.c
index aed8dc9..4157ac4 100644
--- a/cogl/cogl-renderer.c
+++ b/cogl/cogl-renderer.c
@@ -222,7 +222,7 @@ _cogl_renderer_choose_driver (CoglRenderer *renderer,
     driver_name = _cogl_config_driver;
 
 #ifdef HAVE_COGL_GL
-  if (driver_name == NULL || !strcmp (driver_name, "gl"))
+  if (driver_name == NULL || !g_ascii_strcasecmp (driver_name, "gl"))
     {
       renderer->driver = COGL_DRIVER_GL;
       libgl_name = COGL_GL_LIBNAME;
@@ -231,7 +231,7 @@ _cogl_renderer_choose_driver (CoglRenderer *renderer,
 #endif
 
 #ifdef HAVE_COGL_GLES2
-  if (driver_name == NULL || !strcmp (driver_name, "gles2"))
+  if (driver_name == NULL || !g_ascii_strcasecmp (driver_name, "gles2"))
     {
       renderer->driver = COGL_DRIVER_GLES2;
       libgl_name = COGL_GLES2_LIBNAME;
@@ -240,7 +240,7 @@ _cogl_renderer_choose_driver (CoglRenderer *renderer,
 #endif
 
 #ifdef HAVE_COGL_GLES
-  if (driver_name == NULL || !strcmp (driver_name, "gles1"))
+  if (driver_name == NULL || !g_ascii_strcasecmp (driver_name, "gles1"))
     {
       renderer->driver = COGL_DRIVER_GLES1;
       libgl_name = COGL_GLES1_LIBNAME;
@@ -308,7 +308,8 @@ cogl_renderer_connect (CoglRenderer *renderer, GError **error)
           char *user_choice = getenv ("COGL_RENDERER");
           if (!user_choice)
             user_choice = _cogl_config_renderer;
-          if (user_choice && strcmp (winsys->name, user_choice) != 0)
+          if (user_choice &&
+              g_ascii_strcasecmp (winsys->name, user_choice) != 0)
             continue;
         }