openexr,ilmbase: Switch to cmake-based build

It appears that the autotools based build isn't supported on Darwin.
Just use the stdenv-builtin cmake build everywhere, as it works just
fine and is simpler.

pkgs/development/libraries/openexr/default.nix

@@ -1,11 +1,13 @@
-{ lib, stdenv, buildPackages, fetchFromGitHub, autoconf, automake, libtool, pkgconfig,
-  zlib, ilmbase, fetchpatch }:
-
-let
-  # Doesn't really do anything when not crosscompiling
-  emulator = stdenv.hostPlatform.emulator buildPackages;
-in
-
+{ lib
+, stdenv
+, buildPackages
+, fetchFromGitHub
+, zlib
+, ilmbase
+, fetchpatch 
+, cmake
+, libtool
+}:
 stdenv.mkDerivation rec {
   pname = "openexr";
   version = "2.4.1";
@@ -17,36 +19,11 @@ stdenv.mkDerivation rec {
     sha256 = "020gyl8zv83ag6gbcchmqiyx9rh2jca7j8n52zx1gk4rck7kwc01";
   };
 
-  sourceRoot = "source/OpenEXR";
-
   outputs = [ "bin" "dev" "out" "doc" ];
-
-  # Needed because there are some generated sources. Solution: just run them under QEMU.
-  postPatch = ''
-    for file in b44ExpLogTable dwaLookups
-    do
-      # Ecape for both sh and Automake
-      emu=${lib.escapeShellArg (lib.replaceStrings ["$"] ["$$"] emulator)}
-      before="./$file > $file.h"
-      after="$emu $before"
-      substituteInPlace IlmImf/Makefile.am \
-        --replace "$before" "$after"
-    done
-
-    # Make sure the patch succeeded
-    [[ $(grep "$emu" IlmImf/Makefile.am | wc -l) = 2 ]]
-  '';
-
-  preConfigure = ''
-    patchShebangs ./bootstrap
-    ./bootstrap
-  '';
-
-  nativeBuildInputs = [ pkgconfig autoconf automake libtool ];
+  nativeBuildInputs = [ cmake libtool ];
   propagatedBuildInputs = [ ilmbase zlib ];
 
   enableParallelBuilding = true;
-  doCheck = false; # fails 1 of 1 tests
 
   meta = with stdenv.lib; {
     description = "A high dynamic-range (HDR) image file format";