Improvements to tools/gn.py

build/toolchain/mac/BUILD.gn

 # Copyright (c) 2013 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.
 
 # TODO(brettw) Use "gcc_toolchain.gni" like the Linux toolchains. This requires
 # some enhancements since the commands on Mac are slightly different than on
 # Linux.
 
 import("../goma.gni")
-import("//build/config/ios/ios_sdk.gni")
 import("//build/config/mac/mac_sdk.gni")
 
 assert(host_os == "mac")
 
 import("//build/toolchain/clang.gni")
 import("//build/toolchain/goma.gni")
 import("//build/config/sysroot.gni")
 
 if (use_goma) {
   goma_prefix = "$goma_dir/gomacc "
@@ skipping 180 matching lines @@
       target_os = target_os
       target_cpu = target_cpu
 
       if (defined(invoker.is_clang)) {
         is_clang = invoker.is_clang
       }
     }
   }
 }
 
-# Toolchain used for iOS device targets.
-mac_toolchain("ios_clang_arm") {
-  toolchain_cpu = "arm"
-  toolchain_os = "mac"
-  prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
-                       root_build_dir)
-  cc = "${goma_prefix}$prefix/clang"
-  cxx = "${goma_prefix}$prefix/clang++"
-  ld = cxx
-  is_clang = true
-  sysroot_flags = "-isysroot $ios_device_sdk_path -miphoneos-version-min=$ios_deployment_target"
-}
-
-# Toolchain used for iOS simulator targets.
-mac_toolchain("ios_clang_x64") {
-  toolchain_cpu = "x64"
-  toolchain_os = "mac"
-  prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
-                       root_build_dir)
-  cc = "${goma_prefix}$prefix/clang"
-  cxx = "${goma_prefix}$prefix/clang++"
-  ld = cxx
-  is_clang = true
-  sysroot_flags = "-isysroot $ios_simulator_sdk_path -mios-simulator-version-min=$ios_deployment_target"
-}
-
 # Toolchain used for Mac host targets.
 mac_toolchain("clang_x64") {
   toolchain_cpu = "x64"
   toolchain_os = "mac"
   prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
                        root_build_dir)
   cc = "${goma_prefix}$prefix/clang"
   cxx = "${goma_prefix}$prefix/clang++"
   ld = cxx
   is_clang = true
   sysroot_flags = "-isysroot $mac_sdk_path -mmacosx-version-min=$mac_sdk_min"
 }
 
 # Toolchain used for Mac host (i386) targets.
 mac_toolchain("clang_i386") {
   toolchain_cpu = "i386"
   toolchain_os = "mac"
   prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
                        root_build_dir)
   cc = "${goma_prefix}$prefix/clang"
   cxx = "${goma_prefix}$prefix/clang++"
   ld = cxx
   is_clang = true
   sysroot_flags = "-isysroot $mac_sdk_path -mmacosx-version-min=$mac_sdk_min"
 }