dart-sdk: support two level namespace for macOS

Author: daeho-ro

Formula/d/dart-sdk.rb

@@ -33,6 +33,13 @@ class DartSdk < Formula
     end
   end
 
+  # Workaround for dependants audit failure: Libraries were compiled with a flat namespace.
+  # Issue ref: https://github.com/dart-lang/sdk/issues/63115
+  patch do
+    url "https://github.com/dart-lang/sdk/commit/6b2aae401cd0983fc66b5e4728679b6f85cb1143.patch?full_index=1"
+    sha256 "83797751b03c1f2a607a2b8fa642d30952d2c4c01356749c480218b9cf89ae0c"
+  end
+
   def install
     resource("depot-tools").stage(buildpath/"depot-tools")
 
@@ -42,6 +49,12 @@ def install
     system "gclient", "config", "--name", "sdk", "https://dart.googlesource.com/sdk.git@#{version}"
     system "gclient", "sync", "--no-history"
 
+    # Workaround for error: 'readdir_r' is deprecated
+    # Issue ref: https://github.com/dart-lang/sdk/issues/63089
+    inreplace "sdk/build/config/compiler/BUILD.gn",
+              "\"-Wno-tautological-constant-compare\",",
+              "\\0\n      \"-Wno-deprecated-declarations\","
+
     chdir "sdk" do
       arch = Hardware::CPU.arm? ? "arm64" : "x64"
       system "./tools/build.py", "--mode=release", "--arch=#{arch}", "create_sdk"