[infra] Remove dependence on //third_party/gyp/pylib/gyp/mac_tool.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/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 "
 } else {
   goma_prefix = ""
 }
 
-# This will copy the gyp-mac-tool to the build directory. We pass in the source
-# file of the win tool.
-gyp_mac_tool_source =
-    rebase_path("//third_party/gyp/pylib/gyp/mac_tool.py", root_build_dir)
-exec_script("setup_toolchain.py", [ gyp_mac_tool_source ])
-
 # Shared toolchain definition. Invocations should set toolchain_os to set the
 # build args in this definition.
 template("mac_toolchain") {
   toolchain(target_name) {
     assert(defined(invoker.cc), "mac_toolchain() must specify a \"cc\" value")
     assert(defined(invoker.cxx), "mac_toolchain() must specify a \"cxx\" value")
+    assert(defined(invoker.ar), "mac_toolchain() must specify an \"ar\" value")
     assert(defined(invoker.ld), "mac_toolchain() must specify a \"ld\" value")
     assert(defined(invoker.toolchain_cpu),
            "mac_toolchain() must specify a \"toolchain_cpu\"")
     assert(defined(invoker.toolchain_os),
            "mac_toolchain() must specify a \"toolchain_os\"")
 
     # We can't do string interpolation ($ in strings) on things with dots in
     # them. To allow us to use $cc below, for example, we create copies of
     # these values in our scope.
     cc = invoker.cc
     cxx = invoker.cxx
+    ar = invoker.ar
     ld = invoker.ld
 
     # Make these apply to all tools below.
     lib_switch = "-l"
     lib_dir_switch = "-L"
 
     sysroot_flags = ""
 
     if (defined(invoker.sysroot_flags)) {
       sysroot_flags = invoker.sysroot_flags
@@ skipping 49 matching lines @@
       depfile = "{{output}}.d"
       command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} $sysroot_flags $toolchain_flags {{cflags}} {{cflags_cc}} {{cflags_objcc}} -c {{source}} -o {{output}}"
       depsformat = "gcc"
       description = "OBJCXX {{output}}"
       outputs = [
         "{{target_out_dir}}/{{target_output_name}}/{{source_name_part}}.o",
       ]
     }
 
     tool("alink") {
-      command = "rm -f {{output}} && ./gyp-mac-tool filter-libtool libtool -static -o {{output}} {{inputs}}"
-      description = "LIBTOOL-STATIC {{output}}"
+      rspfile = "{{output}}.rsp"
+      command = "rm -f {{output}} && $ar rcs {{output}} @$rspfile"
+      description = "AR {{output}}"
+      rspfile_content = "{{inputs}}"
       outputs = [
         "{{target_out_dir}}/{{target_output_name}}{{output_extension}}",
       ]
       default_output_extension = ".a"
       output_prefix = "lib"
     }
 
     tool("solink") {
       dylib = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}"  # eg "./libfoo.dylib"
       rspfile = dylib + ".rsp"
@@ skipping 94 matching lines @@
 }
 
 # Toolchain used for Mac host targets.
 mac_toolchain("clang_x64") {
   toolchain_cpu = "x64"
   toolchain_os = "mac"
   prefix = rebase_path("//buildtools/toolchain/clang+llvm-x86_64-darwin/bin",
                        root_build_dir)
   cc = "${goma_prefix}$prefix/clang"
   cxx = "${goma_prefix}$prefix/clang++"
+  ar = "${prefix}/llvm-ar"
   ld = cxx
   strip = "strip"
   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_x86") {
   toolchain_cpu = "i386"
   toolchain_os = "mac"
   prefix = rebase_path("//buildtools/toolchain/clang+llvm-x86_64-darwin/bin",
                        root_build_dir)
   cc = "${goma_prefix}$prefix/clang"
   cxx = "${goma_prefix}$prefix/clang++"
+  ar = "${prefix}/llvm-ar"
   ld = cxx
   strip = "strip"
   is_clang = true
   sysroot_flags = "-isysroot $mac_sdk_path -mmacosx-version-min=$mac_sdk_min"
 }