build: Add macOS x86_64 target support for ARM hosts

Author: AkiSakurai

build/Utils.cmake

@@ -206,6 +206,8 @@ function(extract_sources sources_file)
     if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
       if(CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
         set(target_platforms_arg "--target-platforms=shim//:macos-arm64")
+      elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
+        set(target_platforms_arg "--target-platforms=shim//:macos-x86_64")
       endif()
     endif()
 

shim/BUCK

@@ -90,3 +90,11 @@ execution_platform(
     use_windows_path_separators = False,
     visibility = ["PUBLIC"],
 )
+
+execution_platform(
+    name = "macos-x86_64",
+    cpu_configuration = "prelude//cpu:x86_64",
+    os_configuration = "prelude//os:macos",
+    use_windows_path_separators = False,
+    visibility = ["PUBLIC"],
+)