From a8b96a014024e2771e7d578d2b0e6f513a47c3e2 Mon Sep 17 00:00:00 2001
From: Weijia Wang <9713184+wegank@users.noreply.github.com>
Date: Fri, 9 Dec 2022 10:09:54 +0100
Subject: [PATCH] mygui: add darwin support

---
 pkgs/development/libraries/mygui/default.nix  | 56 ++++++++++++++++---
 .../libraries/mygui/disable-framework.patch   | 19 +++++++
 pkgs/top-level/all-packages.nix               |  1 +
 3 files changed, 68 insertions(+), 8 deletions(-)
 create mode 100644 pkgs/development/libraries/mygui/disable-framework.patch

diff --git a/pkgs/development/libraries/mygui/default.nix b/pkgs/development/libraries/mygui/default.nix
index 740c1fec8834..b49f9ca6e2de 100644
--- a/pkgs/development/libraries/mygui/default.nix
+++ b/pkgs/development/libraries/mygui/default.nix
@@ -1,9 +1,24 @@
-{  lib, stdenv, fetchFromGitHub, libX11, cmake, ois, freetype, libuuid,
-   boost, pkg-config, withOgre ? false, ogre ? null, libGL, libGLU ? null } :
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, pkg-config
+, boost
+, freetype
+, libuuid
+, ois
+, withOgre ? false
+, ogre
+, libGL
+, libGLU
+, libX11
+, Cocoa
+}:
 
 let
   renderSystem = if withOgre then "3" else "4";
-in stdenv.mkDerivation rec {
+in
+stdenv.mkDerivation rec {
   pname = "mygui";
   version = "3.4.0";
 
@@ -14,17 +29,42 @@ in stdenv.mkDerivation rec {
     sha256 = "0a4zi8w18pjj813n7kmxldl1d9r1jp0iyhkw7pbqgl8f7qaq994w";
   };
 
-  nativeBuildInputs = [ cmake pkg-config ];
-  buildInputs = [ libX11 ois freetype libuuid boost ]
-    ++ (if withOgre then [ ogre ] else [ libGL libGLU ]);
+  patches = [
+    ./disable-framework.patch
+  ];
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  buildInputs = [
+    boost
+    freetype
+    libuuid
+    ois
+  ] ++ lib.optionals withOgre [
+    ogre
+  ] ++ lib.optionals (!withOgre && stdenv.isLinux) [
+    libGL
+    libGLU
+  ] ++ lib.optionals stdenv.isLinux [
+    libX11
+  ] ++ lib.optionals stdenv.isDarwin [
+    Cocoa
+  ];
 
   # Tools are disabled due to compilation failures.
-  cmakeFlags = [ "-DMYGUI_BUILD_TOOLS=OFF" "-DMYGUI_BUILD_DEMOS=OFF" "-DMYGUI_RENDERSYSTEM=${renderSystem}" ];
+  cmakeFlags = [
+    "-DMYGUI_BUILD_TOOLS=OFF"
+    "-DMYGUI_BUILD_DEMOS=OFF"
+    "-DMYGUI_RENDERSYSTEM=${renderSystem}"
+  ];
 
   meta = with lib; {
     homepage = "http://mygui.info/";
     description = "Library for creating GUIs for games and 3D applications";
     license = licenses.lgpl3Plus;
-    platforms = platforms.linux;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/development/libraries/mygui/disable-framework.patch b/pkgs/development/libraries/mygui/disable-framework.patch
new file mode 100644
index 000000000000..502e58ac3625
--- /dev/null
+++ b/pkgs/development/libraries/mygui/disable-framework.patch
@@ -0,0 +1,19 @@
+diff --git a/CMake/Utils/MyGUIConfigTargets.cmake b/CMake/Utils/MyGUIConfigTargets.cmake
+index bba3f91..8f4f351 100644
+--- a/CMake/Utils/MyGUIConfigTargets.cmake
++++ b/CMake/Utils/MyGUIConfigTargets.cmake
+@@ -477,14 +477,6 @@ function(mygui_config_lib PROJECTNAME)
+ 		if (CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "Intel")
+ 			# add GCC visibility flags to shared library build
+ 			set_target_properties(${PROJECTNAME} PROPERTIES COMPILE_FLAGS "${MYGUI_GCC_VISIBILITY_FLAGS}")
+-			if (APPLE)
+-				# deal with Mac OS X's framework system
+-				set_target_properties(${PROJECTNAME} PROPERTIES FRAMEWORK TRUE)
+-				set_target_properties(${PROJECTNAME} PROPERTIES PUBLIC_HEADER "${${PROJECTNAME}_HEADERS}")
+-				set_target_properties(${PROJECTNAME} PROPERTIES OUTPUT_NAME ${PROJECTNAME})
+-				set_target_properties(${PROJECTNAME} PROPERTIES BUILD_WITH_INSTALL_RPATH TRUE)
+-				set_target_properties(${PROJECTNAME} PROPERTIES INSTALL_NAME_DIR "@executable_path/../Frameworks")
+-			endif (APPLE)
+ 		endif ()
+ 	endif (MYGUI_STATIC)
+ 	mygui_install_target(${PROJECTNAME} "")
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 172ba6fd737b..77d92a36ee6e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -21645,6 +21645,7 @@ with pkgs;
   mygpoclient = with python3.pkgs; toPythonApplication mygpoclient;
 
   mygui = callPackage ../development/libraries/mygui {
+    inherit (darwin.apple_sdk.frameworks) Cocoa;
     ogre = ogre1_9;
   };