[gtk+] gdk: Add more GDK_GL_ERROR error ids

[Emmanuele Bassi <ebassi src gnome org>]

commit 0ce9815bd1e719a7f3c36b61456b7442511d3ad5
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Jul 1 16:17:14 2016 +0100

    gdk: Add more GDK_GL_ERROR error ids
    
    We're going to use them in other locations.

 gdk/gdktypes.h |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdktypes.h b/gdk/gdktypes.h
index 211d7a1..4818fe3 100644
--- a/gdk/gdktypes.h
+++ b/gdk/gdktypes.h
@@ -472,6 +472,8 @@ struct _GdkPoint
  * @GDK_GL_ERROR_NOT_AVAILABLE: OpenGL support is not available
  * @GDK_GL_ERROR_UNSUPPORTED_FORMAT: The requested visual format is not supported
  * @GDK_GL_ERROR_UNSUPPORTED_PROFILE: The requested profile is not supported
+ * @GDK_GL_ERROR_COMPILATION_FAILED: The shader compilation failed (available since 3.22)
+ * @GDK_GL_ERROR_LINK_FAILED: The shader linking failed (available since 3.22)
  *
  * Error enumeration for #GdkGLContext.
  *
@@ -480,7 +482,9 @@ struct _GdkPoint
 typedef enum {
   GDK_GL_ERROR_NOT_AVAILABLE,
   GDK_GL_ERROR_UNSUPPORTED_FORMAT,
-  GDK_GL_ERROR_UNSUPPORTED_PROFILE
+  GDK_GL_ERROR_UNSUPPORTED_PROFILE,
+  GDK_GL_ERROR_COMPILATION_FAILED,
+  GDK_GL_ERROR_LINK_FAILED
 } GdkGLError;
 
 /**