opensubdiv: fix glew paths

Include and lib are not in ${glew} but in ${glew.dev}.

This changes what is found by the cmake of opensubdiv and some features
are now enabled, such as OpenGL 4.2 support.

pkgs/development/libraries/opensubdiv/default.nix

@@ -28,8 +28,8 @@
     [ "-DNO_TUTORIALS=1"
       "-DNO_REGRESSION=1"
       "-DNO_EXAMPLES=1"
-      "-DGLEW_INCLUDE_DIR=${glew}/include"
-      "-DGLEW_LIBRARY=${glew}/lib"
+      "-DGLEW_INCLUDE_DIR=${glew.dev}/include"
+      "-DGLEW_LIBRARY=${glew.dev}/lib"
     ];
 
   enableParallelBuilding = true;