From f9081aa622535dc5dc92097541bde52285a58714 Mon Sep 17 00:00:00 2001
From: yzx9 <git@yzx9.xyz>
Date: Sun, 27 Oct 2024 20:23:32 +0800
Subject: [PATCH] openctm: fix darwin support

---
 pkgs/by-name/op/openctm/package.nix | 35 ++++++++++++++++++++---------
 1 file changed, 24 insertions(+), 11 deletions(-)

diff --git a/pkgs/by-name/op/openctm/package.nix b/pkgs/by-name/op/openctm/package.nix
index d89640ca8210..bb6bd763ea1d 100644
--- a/pkgs/by-name/op/openctm/package.nix
+++ b/pkgs/by-name/op/openctm/package.nix
@@ -6,6 +6,7 @@
   libglut,
   gtk2,
   libGLU,
+  darwin,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -26,18 +27,30 @@ stdenv.mkDerivation (finalAttrs: {
 
   nativeBuildInputs = [ pkg-config ];
 
-  buildInputs = [
-    libglut
-    gtk2
-    libGLU
-  ];
+  buildInputs =
+    [
+      libglut
+      libGLU
+    ]
+    ++ lib.optionals stdenv.hostPlatform.isLinux [ gtk2 ]
+    ++ lib.optionals stdenv.hostPlatform.isDarwin [ darwin.apple_sdk.frameworks.Cocoa ];
 
-  postPatch = ''
-    substituteInPlace tools/tinyxml/Makefile.linux \
-      --replace-warn "-Wno-format" "-Wno-format -Wno-format-security"
-    substituteInPlace tools/Makefile.linux \
-      --replace-warn "-lglut" "-lglut -lGL -lGLU"
-  '';
+  postPatch =
+    lib.optionalString stdenv.hostPlatform.isLinux ''
+      substituteInPlace "tools/tinyxml/Makefile.linux" \
+        --replace-warn "-Wno-format" "-Wno-format -Wno-format-security"
+      substituteInPlace "tools/Makefile.linux" \
+        --replace-warn "-lglut" "-lglut -lGL -lGLU"
+    ''
+    + lib.optionalString stdenv.hostPlatform.isDarwin ''
+      substituteInPlace "lib/Makefile.macosx" \
+                        "tools/Makefile.macosx" \
+                        "tools/jpeg/makefile.macosx" \
+                        "tools/zlib/Makefile.macosx" \
+        --replace-warn "gcc" "${stdenv.cc.targetPrefix}cc"
+      substituteInPlace "lib/Makefile.macosx" "tools/Makefile.macosx" "tools/tinyxml/Makefile.macosx" \
+        --replace-warn "g++" "${stdenv.cc.targetPrefix}c++"
+    '';
 
   makeFlags = [
     "BINDIR=$(bin)/bin/"