Create wrapper scripts that set --output-directory

third_party/android_platform/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//testing/test.gni")
 import("config.gni")
 
-gypi_values = exec_script("//build/gypi_to_gn.py",
-                          [ rebase_path("relocation_packer.gyp") ],
-                          "scope",
-                          [ "relocation_packer.gyp" ])
+if (current_toolchain == host_toolchain) {
+  gypi_values = exec_script("//build/gypi_to_gn.py",
+                            [ rebase_path("relocation_packer.gyp") ],
+                            "scope",
+                            [ "relocation_packer.gyp" ])
 
-if (current_toolchain == host_toolchain) {
   # GYP: //third_party/android_platform/relocation_packer.gyp:android_lib_relocation_packer
   source_set("android_lib_relocation_packer") {
     deps = [
       "//third_party/elfutils:libelf",
     ]
     configs -= [ "//build/config/compiler:chromium_code" ]
     configs += [ "//build/config/compiler:no_chromium_code" ]
     sources = gypi_values.relocation_packer_sources
   }
 
@@ skipping 17 matching lines @@
   # GYP: //third_party/android_platform/relocation_packer.gyp:android_relocation_packer_unittests
   test("android_relocation_packer_unittests") {
     deps = [
       ":android_lib_relocation_packer",
       ":copy_android_relocation_packer_test_data",
       "//testing/gtest",
     ]
     sources = gypi_values.relocation_packer_test_sources
   }
 }
+
+if (is_android) {
+  import("//build/config/android/rules.gni")
+
+  wrapper_script("stack_wrapper") {
+    target = "//third_party/android_platform/development/scripts/stack"
+  }
+}