libjack2: fix darwin build

pkgs/misc/jackaudio/default.nix

@@ -1,9 +1,12 @@
 { stdenv, fetchFromGitHub, pkgconfig, python2Packages, makeWrapper
 , bash, libsamplerate, libsndfile, readline, eigen, celt
+# Darwin Dependencies
+, aften, AudioToolbox, CoreAudio, CoreFoundation
 
 # Optional Dependencies
 , dbus ? null, libffado ? null, alsaLib ? null
 , libopus ? null
+, darwin
 
 # Extra options
 , prefix ? ""
@@ -16,7 +19,7 @@ let
 
   libOnly = prefix == "lib";
 
-  optDbus = shouldUsePkg dbus;
+  optDbus = if stdenv.isDarwin then null else shouldUsePkg dbus;
   optPythonDBus = if libOnly then null else shouldUsePkg dbus-python;
   optLibffado = if libOnly then null else shouldUsePkg libffado;
   optAlsaLib = if libOnly then null else shouldUsePkg alsaLib;
@@ -34,21 +37,36 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ pkgconfig python makeWrapper ];
-  buildInputs = [ python libsamplerate libsndfile readline eigen celt
+  buildInputs = [ libsamplerate libsndfile readline eigen celt
     optDbus optPythonDBus optLibffado optAlsaLib optLibopus
-  ];
+  ] ++ stdenv.lib.optionals stdenv.isDarwin [ aften AudioToolbox CoreAudio CoreFoundation ];
 
-  patchPhase = ''
-    substituteInPlace svnversion_regenerate.sh --replace /bin/bash ${bash}/bin/bash
+  # CoreFoundation 10.10 doesn't include CFNotificationCenter.h yet.
+  patches = stdenv.lib.optionals stdenv.isDarwin [ ./clang.patch ./darwin-cf.patch ];
+
+  prePatch = ''
+    substituteInPlace svnversion_regenerate.sh \
+        --replace /bin/bash ${bash}/bin/bash
+  '';
+
+  # It looks like one of the frameworks depends on <CoreFoundation/CFAttributedString.h>
+  # since frameworks are impure we also have to use the impure CoreFoundation here.
+  # FIXME: remove when CoreFoundation is updated to 10.11
+  preConfigure = stdenv.lib.optionalString stdenv.isDarwin ''
+    export NIX_CFLAGS_COMPILE="-F${CoreFoundation}/Library/Frameworks $NIX_CFLAGS_COMPILE"
   '';
 
   configurePhase = ''
+    runHook preConfigure
+
     python waf configure --prefix=$out \
       ${optionalString (optDbus != null) "--dbus"} \
       --classic \
       ${optionalString (optLibffado != null) "--firewire"} \
       ${optionalString (optAlsaLib != null) "--alsa"} \
       --autostart=${if (optDbus != null) then "dbus" else "classic"} \
+
+    runHook postConfigure
   '';
 
   buildPhase = ''