fix macos CI

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

.cargo/config.toml

@@ -1,2 +1,14 @@
-[build]
+[target.x86_64-unknown-linux-gnu]
-rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+
+[target.i686-unknown-linux-gnu]
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+
+[target.aarch64-unknown-linux-gnu]
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+
+[target.aarch64-apple-darwin]
+rustflags = ["-C", "link-arg=-fuse-ld=zld"]
+
+[target.x86_64-apple-darwin]
+rustflags = ["-C", "link-arg=-fuse-ld=zld"]

flake.nix

@@ -26,15 +26,17 @@
       in rec {
         devShell = with pkgs;
           mkShell {
-            nativeBuildInputs = [
+            nativeBuildInputs =
-              cmake
+              [
-              openssl
+                cmake
-              fontconfig
+                openssl
-              pkg-config
+                fontconfig
-              llvmPackages.lld
+                pkg-config
-              rust-analyzer
+                rust-analyzer
-              toolchain
+                toolchain
-            ];
+              ]
+              ++ lib.optionals (with stdenv.hostPlatform; (isx86 || isi686 || isAarch64) && isLinux) [llvmPackages.lld]
+              ++ lib.optionals stdenv.hostPlatform.isDarwin [zld darwin.apple_sdk.frameworks.Cocoa];
           };
 
         formatter = pkgs.alejandra;