Silence warnings about pattern synonyms with no type signatures.

Author: svenpanne

src/Graphics/GLU/Tokens.hs

@@ -1,4 +1,7 @@
-{-# LANGUAGE PatternSynonyms, ScopedTypeVariables #-}
+{-# LANGUAGE CPP, PatternSynonyms, ScopedTypeVariables #-}
+#if __GLASGOW_HASKELL__ >= 800
+{-# OPTIONS_GHC -Wno-missing-pat-syn-sigs #-}
+#endif
 --------------------------------------------------------------------------------
 -- |
 -- Module      :  Graphics.GLU.Tokens