Made import more robust. Bumped version to 2.6.0.1.

Author: svenpanne

GLUT.cabal

@@ -1,5 +1,5 @@
 name: GLUT
-version: 2.6.0.0
+version: 2.6.0.1
 synopsis: A binding for the OpenGL Utility Toolkit
 description:
   A Haskell binding for the OpenGL Utility Toolkit, a window system independent

src/Graphics/UI/GLUT/Raw/Functions.hs

@@ -177,7 +177,7 @@ module Graphics.UI.GLUT.Raw.Functions (
 
 import Foreign.C.Types
 import Foreign.Ptr
-import Graphics.Rendering.OpenGL.Raw.Core31.Types
+import Graphics.Rendering.OpenGL.Raw.Core31 ( GLenum, GLint, GLfloat, GLdouble )
 import Graphics.UI.GLUT.Raw.APIEntry
 import Graphics.UI.GLUT.Raw.Callbacks