angle_metal_shader_prebuild.patch

diff --git a/src/libANGLE/renderer/metal/metal_backend.gni b/src/libANGLE/renderer/metal/metal_backend.gni
index d3a8a1d6e..6d3ebd624 100644
--- a/src/libANGLE/renderer/metal/metal_backend.gni
+++ b/src/libANGLE/renderer/metal/metal_backend.gni
@@ -92,8 +92,7 @@ metal_backend_sources = [
 # We can build the ANGLE internal shaders at build-time if we have access to the Mac SDK in the "build" dir.
 # Building internal shaders for iOS is not supported. The Chromium Mac SDK does not have all the required files.
 # This is also an issue when cross-compiling for mac.
-metal_internal_shader_compilation_supported =
-    angle_has_build && !is_ios && target_os == host_os
+metal_internal_shader_compilation_supported = true
 
 metal_internal_shaders_header =
     "$root_gen_dir/angle/mtl_internal_shaders_metallib.h"
diff --git a/src/libANGLE/renderer/metal/BUILD.gn b/src/libANGLE/renderer/metal/BUILD.gn
index 96e9ee842..60ce22d8a 100644
--- a/src/libANGLE/renderer/metal/BUILD.gn
+++ b/src/libANGLE/renderer/metal/BUILD.gn
@@ -50,10 +50,12 @@ if (metal_internal_shader_compilation_supported) {
         "-mmacosx-version-min=10.14",
       ]
     } else if (is_ios) {
-      args += [
-        "--std=ios-metal2.1",
-        "-mios-version-min=12",
-      ]
+      args += ["--std=ios-metal2.1"]
+      if (target_environment == "simulator") {
+        args += ["-mios-simulator-version-min=12"]
+      } else {
+        args += ["-mios-version-min=12"]
+      }
     }
   }