use local swift on macos

Signed-off-by: Kristoffer Dalby <kristoffer@dalby.cc>

Package.resolved

@@ -50,17 +50,17 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-log.git",
       "state" : {
-        "revision" : "e97a6fcb1ab07462881ac165fdbb37f067e205d5",
-        "version" : "1.5.4"
+        "revision" : "9cb486020ebf03bfa5b5df985387a14a98744537",
+        "version" : "1.6.1"
       }
     },
     {
       "identity" : "swift-system",
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-system.git",
       "state" : {
-        "revision" : "f9266c85189c2751589a50ea5aec72799797e471",
-        "version" : "1.3.0"
+        "revision" : "6a9e38e7bd22a3b8ba80bddf395623cf68f57807",
+        "version" : "1.3.1"
       }
     },
     {

flake.nix

@@ -16,21 +16,18 @@
       else "dev";
 
     ndeps = pkgs:
-      with pkgs; [
-        swiftPackages.swiftNoSwiftDriver
-        swiftPackages.swiftpm
-
-        pkg-config
-      ];
+      with pkgs;
+        [
+          pkg-config
+        ]
+        ++ lib.optionals stdenv.isLinux [
+          swiftPackages.swiftNoSwiftDriver
+          swiftPackages.swiftpm
+        ];
 
     bdeps = pkgs:
       with pkgs;
         [
-          swiftPackages.stdenv
-          swiftPackages.XCTest
-          swiftPackages.Foundation
-          swiftPackages.Dispatch
-
           # SwiftExif
           libexif
           libiptcdata
@@ -73,6 +70,11 @@
           # and find that library in Nix and add it to the buildDeps.
         ]
         ++ lib.optionals stdenv.isLinux [
+          swiftPackages.stdenv
+          swiftPackages.XCTest
+          swiftPackages.Foundation
+          swiftPackages.Dispatch
+
           swift-corelibs-libdispatch
           glibc.dev