From 14d0c3f3a17fda1e1ad7f8ea3cddb2615d095d16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hl=C3=B6=C3=B0ver=20Sigur=C3=B0sson?= <hlolli@gmail.com>
Date: Tue, 10 May 2022 12:34:33 +0200
Subject: [PATCH] csound: darwin support

---
 pkgs/applications/audio/csound/default.nix | 20 ++++++++++++++++----
 pkgs/top-level/all-packages.nix            |  4 +++-
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/pkgs/applications/audio/csound/default.nix b/pkgs/applications/audio/csound/default.nix
index ebcdb8f4290..4da3efbffe4 100644
--- a/pkgs/applications/audio/csound/default.nix
+++ b/pkgs/applications/audio/csound/default.nix
@@ -1,4 +1,8 @@
 { lib, stdenv, fetchFromGitHub, cmake, libsndfile, libsamplerate, flex, bison, boost, gettext
+, Accelerate
+, AudioUnit
+, CoreAudio
+, CoreMIDI
 , alsa-lib ? null
 , libpulseaudio ? null
 , libjack2 ? null
@@ -26,21 +30,29 @@ stdenv.mkDerivation rec {
   };
 
   cmakeFlags = [ "-DBUILD_CSOUND_AC=0" ] # fails to find Score.hpp
+    ++ lib.optional stdenv.isDarwin "-DCS_FRAMEWORK_DEST=${placeholder "out"}/lib"
     ++ lib.optional (libjack2 != null) "-DJACK_HEADER=${libjack2}/include/jack/jack.h";
 
   nativeBuildInputs = [ cmake flex bison gettext ];
   buildInputs = [ libsndfile libsamplerate boost ]
-    ++ builtins.filter (optional: optional != null) [
+    ++ lib.optionals stdenv.isDarwin [
+      Accelerate AudioUnit CoreAudio CoreMIDI
+    ] ++ lib.optionals stdenv.isLinux (builtins.filter (optional: optional != null) [
       alsa-lib libpulseaudio libjack2
       liblo ladspa-sdk fluidsynth eigen
-      curl tcltk fltk ];
+      curl tcltk fltk
+    ]);
+
+  postInstall = lib.optional stdenv.isDarwin ''
+    mkdir -p $out/Library/Frameworks
+    ln -s $out/lib/CsoundLib64.framework $out/Library/Frameworks
+  '';
 
   meta = with lib; {
     description = "Sound design, audio synthesis, and signal processing system, providing facilities for music composition and performance on all major operating systems and platforms";
     homepage = "https://csound.com/";
     license = licenses.lgpl21Plus;
     maintainers = [maintainers.marcweber];
-    platforms = platforms.linux;
+    platforms = platforms.unix;
   };
 }
-
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8f4adeab534..cf59c3dc7c6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -25602,7 +25602,9 @@ with pkgs;
 
   csa = callPackage ../applications/audio/csa { };
 
-  csound = callPackage ../applications/audio/csound { };
+  csound = callPackage ../applications/audio/csound {
+    inherit (pkgs.darwin.apple_sdk.frameworks) Accelerate AudioUnit CoreAudio CoreMIDI;
+  };
 
   csound-manual = callPackage ../applications/audio/csound/csound-manual {
     python = python27;