paraview, vtk: fix build after mesa update

pkgs/applications/graphics/paraview/default.nix

@@ -29,6 +29,9 @@ stdenv.mkDerivation rec {
     "-DPARAVIEW_INSTALL_DEVELOPMENT=ON"
   ];
 
+  # https://bugzilla.redhat.com/show_bug.cgi?id=1138466
+  NIX_CFLAGS_COMPILE = "-DGLX_GLXEXT_LEGACY";
+
   enableParallelBuilding = true;
 
   buildInputs = [ cmake qt4 hdf5 mpich2 python libxml2 mesa libXt ];

pkgs/development/libraries/vtk/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, cmake, mesa, libX11, xproto, libXt
+{ stdenv, fetchurl, fetchpatch, cmake, mesa, libX11, xproto, libXt
 , qtLib ? null }:
 
 with stdenv.lib;
@@ -17,6 +17,9 @@ stdenv.mkDerivation rec {
     sha256 = "1fxxgsa7967gdphkl07lbfr6dcbq9a72z5kynlklxn7hyp0l18pi";
   };
 
+  # https://bugzilla.redhat.com/show_bug.cgi?id=1138466
+  postPatch = "sed '/^#define GL_GLEXT_LEGACY/d' -i ./Rendering/vtkOpenGL.h";
+
   buildInputs = [ cmake mesa libX11 xproto libXt ]
     ++ optional (qtLib != null) qtLib;