diff options
Diffstat (limited to 'dev-haskell/opengl/files/opengl-2.2.1.1-ghc-7.4.patch')
| -rw-r--r-- | dev-haskell/opengl/files/opengl-2.2.1.1-ghc-7.4.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/dev-haskell/opengl/files/opengl-2.2.1.1-ghc-7.4.patch b/dev-haskell/opengl/files/opengl-2.2.1.1-ghc-7.4.patch new file mode 100644 index 000000000000..772b17539523 --- /dev/null +++ b/dev-haskell/opengl/files/opengl-2.2.1.1-ghc-7.4.patch @@ -0,0 +1,29 @@ +Fix build failure against ghc-7.4 + +[ 4 of 84] Compiling Graphics.Rendering.OpenGL.GL.GLboolean ( Graphics/Rendering/OpenGL/GL/GLboolean.hs, dist/build/Graphics/Rendering/OpenGL/GL/GLboolean.o ) + +Graphics/Rendering/OpenGL/GL/GLboolean.hs:27:23: + Could not deduce (Eq a) arising from a use of `/=' + from the context (Num a) + bound by the type signature for + unmarshalGLboolean :: Num a => a -> Bool + at Graphics/Rendering/OpenGL/GL/GLboolean.hs:27:1-27 + Possible fix: + add (Eq a) to the context of + the type signature for unmarshalGLboolean :: Num a => a -> Bool + In the expression: (/= 0) + In an equation for `unmarshalGLboolean': + unmarshalGLboolean = (/= 0) + +Reported-by: Christian Lask +diff --git a/Graphics/Rendering/OpenGL/GL/GLboolean.hs b/Graphics/Rendering/OpenGL/GL/GLboolean.hs +index cab7356..cc4faa8 100644 +--- a/Graphics/Rendering/OpenGL/GL/GLboolean.hs ++++ b/Graphics/Rendering/OpenGL/GL/GLboolean.hs +@@ -23,5 +23,5 @@ marshalGLboolean :: Num a => Bool -> a + marshalGLboolean False = 0 + marshalGLboolean True = 1 + +-unmarshalGLboolean :: Num a => a -> Bool ++unmarshalGLboolean :: (Eq a, Num a) => a -> Bool + unmarshalGLboolean = (/= 0) |