Darwin support

flake.nix

@@ -7,7 +7,12 @@
   };
 
   outputs = { self, nixpkgs, utils }:
-    utils.lib.eachSystem [ "x86_64-linux" "aarch64-linux" ] (system:
+    (utils.lib.eachSystem [
+      "x86_64-linux"
+      "aarch64-linux"
+      "x86_64-darwin"
+      "aarch64-darwin"
+    ] (system:
       let
         sources = builtins.fromJSON (builtins.readFile ./sources.json);
         buildAdoptLike = with import nixpkgs { system = system; };
@@ -23,7 +28,8 @@
               sha256 = value.sha256;
             };
             version = value.java_version;
-            buildInputs = with pkgs; [
+            buildInputs = if pkgs.stdenv.isLinux then
+              with pkgs; [
                 alsa-lib
                 fontconfig
                 freetype
@@ -34,11 +40,17 @@
                 xorg.libXrender
                 xorg.libXtst
                 zlib
-            ];
-            nativeBuildInputs = with pkgs; [ autoPatchelfHook makeWrapper ];
+              ]
+            else
+              [ ];
+            nativeBuildInputs = if pkgs.stdenv.isLinux then
+              with pkgs; [ autoPatchelfHook makeWrapper ]
+            else
+              [ ];
             dontStrip = 1;
-            installPhase = ''
+            installPhase = if pkgs.stdenv.isLinux then ''
               cd ..
+
               mv $sourceRoot $out
               # jni.h expects jni_md.h to be in the header search path.
               ln -s $out/include/linux/*_md.h $out/include/
@@ -69,11 +81,31 @@
                               }
                 fi
               done
-            '';
-            preFixup = ''
+            '' else if pkgs.stdenv.isDarwin then ''
+              cd ..
+              mv $sourceRoot $out
+              # jni.h expects jni_md.h to be in the header search path.
+              ln -s $out/Contents/Home/include/darwin/*_md.h $out/Contents/Home/include/
+              rm -rf $out/Home/demo
+              # Remove some broken manpages.
+              rm -rf $out/Home/man/ja*
+              ln -s $out/Contents/Home/* $out/
+              # Propagate the setJavaClassPath setup hook from the JDK so that
+              # any package that depends on the JDK has $CLASSPATH set up
+              # properly.
+              mkdir -p $out/nix-support
+              printWords ${setJavaClassPath} > $out/nix-support/propagated-build-inputs
+              # Set JAVA_HOME automatically.
+              cat <<EOF >> $out/nix-support/setup-hook
+              if [ -z "\''${JAVA_HOME-}" ]; then export JAVA_HOME=$out; fi
+              EOF
+            '' else
+              (throw "Unsupported OS");
+            preFixup = if pkgs.stdenv.isLinux then ''
               find "$out" -name libfontmanager.so -exec \
                 patchelf --add-needed libfontconfig.so {} \;
-            '';
+            '' else
+              "";
           };
       in with import nixpkgs { system = system; }; {
         packages = {
@@ -92,5 +124,5 @@
         };
 
         defaultPackage = self.packages.${system}.temurin.stable;
-      });
+      }));
 }