glew110: fix darwin build

pkgs/development/libraries/glew/1.10.nix

···
-{ stdenv, fetchurl, mesa_glu, x11, libXmu, libXi }:
+{ stdenv, fetchurl, mesa_glu, x11, libXmu, libXi
+, AGL ? null }:
 
 with stdenv.lib;
 
···
 
   nativeBuildInputs = [ x11 libXmu libXi ];
   propagatedNativeBuildInputs = [ mesa_glu ]; # GL/glew.h includes GL/glu.h
+  buildInputs = [] ++ optionals stdenv.isDarwin [ AGL ];
 
   patchPhase = ''
     sed -i 's|lib64|lib|' config/Makefile.linux

pkgs/top-level/all-packages.nix

···
   gle = callPackage ../development/libraries/gle { };
 
   glew = callPackage ../development/libraries/glew { };
-  glew110 = callPackage ../development/libraries/glew/1.10.nix { };
+  glew110 = callPackage ../development/libraries/glew/1.10.nix {
+    inherit (darwin.apple_sdk.frameworks) AGL;
+  };
 
   glfw = self.glfw3;
   glfw2 = callPackage ../development/libraries/glfw/2.x.nix { };