[gtk/ngl-is-the-new-gl] Keep accepting GSK_RENDERER=opengl

[Matthias Clasen <matthiasc src gnome org>]

commit 4e472ae01d01fc3d319682f4f5cb94c54f6a09ea
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Oct 7 00:56:08 2021 -0400

    Keep accepting GSK_RENDERER=opengl
    
    We use that in our testsuite, lets not remove it.

 gsk/gskrenderer.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/gsk/gskrenderer.c b/gsk/gskrenderer.c
index 12f05817a7..7c35b051f9 100644
--- a/gsk/gskrenderer.c
+++ b/gsk/gskrenderer.c
@@ -504,7 +504,8 @@ get_renderer_for_name (const char *renderer_name)
 #endif
   else if (g_ascii_strcasecmp (renderer_name, "cairo") == 0)
     return GSK_TYPE_CAIRO_RENDERER;
-  else if (g_ascii_strcasecmp (renderer_name, "gl") == 0)
+  else if (g_ascii_strcasecmp (renderer_name, "opengl") == 0 ||
+           g_ascii_strcasecmp (renderer_name, "gl") == 0)
     return GSK_TYPE_GL_RENDERER;
 #ifdef GDK_RENDERING_VULKAN
   else if (g_ascii_strcasecmp (renderer_name, "vulkan") == 0)
@@ -519,6 +520,7 @@ get_renderer_for_name (const char *renderer_name)
       g_print ("broadway - Disabled during GTK build\n");
 #endif
       g_print ("   cairo - Use the Cairo fallback renderer\n");
+      g_print ("  opengl - Use the OpenGL renderer\n");
       g_print ("      gl - Use the OpenGL renderer\n");
 #ifdef GDK_RENDERING_VULKAN
       g_print ("  vulkan - Use the Vulkan renderer\n");