cmtk: enable some compile options

- use system zlib
- enabled bzip2
- enabled fftw
- enabled openmp for clang

- still disabled Grand Central Dispatch for linux because of build failure
- still disabled CUDA because of build failure
- still disabled mxml because of build failure
- still disabled lzma because of lack of lzmadec.h
- still disabled dcmtk because of build failure

pkgs/applications/science/biology/cmtk/default.nix

@@ -1,4 +1,12 @@
-{ lib, stdenv, fetchurl, cmake }:
+{ lib
+, stdenv
+, bzip2
+, cmake
+, fetchurl
+, fftw
+, llvmPackages
+, zlib
+}:
 
 stdenv.mkDerivation rec {
   pname = "cmtk";
@@ -12,6 +20,14 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
+  buildInputs = [
+    bzip2
+    fftw
+    zlib
+  ] ++ lib.optionals stdenv.cc.isClang [
+    llvmPackages.openmp
+  ];
+
   env.NIX_CFLAGS_COMPILE = toString [
     (lib.optionalString stdenv.cc.isGNU "-std=c++11")
     (lib.optionalString stdenv.cc.isClang "-Wno-error=c++11-narrowing")