bazel: patch rules_foreign_cc to support arm64 macOS

WORKSPACE

@@ -28,8 +28,10 @@ bazel_skylib_workspace()
 
 http_archive(
     name = "rules_foreign_cc",
-    strip_prefix = "rules_foreign_cc-master",
-    url = "https://github.com/bazelbuild/rules_foreign_cc/archive/master.zip",
+    patches = ["@rtorrent//:third_party/rules_foreign_cc.patch"],
+    sha256 = "3c6445404e9e5d17fa0ecdef61be00dd93b20222c11f45e146a98c0a3f67defa",
+    strip_prefix = "rules_foreign_cc-d54c78ab86b40770ee19f0949db9d74a831ab9f0",
+    url = "https://github.com/bazelbuild/rules_foreign_cc/archive/d54c78ab86b40770ee19f0949db9d74a831ab9f0.zip",
 )
 
 load("@rules_foreign_cc//:workspace_definitions.bzl", "rules_foreign_cc_dependencies")

third_party/rules_foreign_cc.patch

@@ -0,0 +1,24 @@
+--- tools/build_defs/shell_toolchain/toolchains/toolchain_mappings.bzl
++++ tools/build_defs/shell_toolchain/toolchains/toolchain_mappings.bzl
+@@ -11,21 +11,18 @@ TOOLCHAIN_MAPPINGS = [
+     ToolchainMapping(
+         exec_compatible_with = [
+             "@bazel_tools//platforms:linux",
+-            "@bazel_tools//platforms:x86_64",
+         ],
+         file = "@rules_foreign_cc//tools/build_defs/shell_toolchain/toolchains/impl:linux_commands.bzl",
+     ),
+     ToolchainMapping(
+         exec_compatible_with = [
+             "@bazel_tools//platforms:windows",
+-            "@bazel_tools//platforms:x86_64",
+         ],
+         file = "@rules_foreign_cc//tools/build_defs/shell_toolchain/toolchains/impl:windows_commands.bzl",
+     ),
+     ToolchainMapping(
+         exec_compatible_with = [
+             "@bazel_tools//platforms:osx",
+-            "@bazel_tools//platforms:x86_64",
+         ],
+         file = "@rules_foreign_cc//tools/build_defs/shell_toolchain/toolchains/impl:osx_commands.bzl",
+     ),