Apply arflags to dependent configs in GN.

tools/gn/command_desc.cc

 // 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.
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <set>
 #include <sstream>
 
@@ skipping 506 matching lines @@
     "      one (either directly or all of them).\n"
     "\n"
     "  script\n"
     "  args\n"
     "  depfile\n"
     "      Actions only. The script and related values.\n"
     "\n"
     "  outputs\n"
     "      Outputs for script and copy target types.\n"
     "\n"
+    "  arflags       [--blame]\n"
     "  defines       [--blame]\n"
     "  include_dirs  [--blame]\n"
     "  cflags        [--blame]\n"
     "  cflags_cc     [--blame]\n"
     "  cflags_cxx    [--blame]\n"
     "  ldflags       [--blame]\n"
     "  lib_dirs\n"
     "  libs\n"
     "      Shows the given values taken from the target and all configs\n"
     "      applying. See \"--blame\" below.\n"
@@ skipping 118 matching lines @@
     } else if (what == variables::kOutputs) {
       PrintOutputs(target, false);
     } else if (what == variables::kDeps) {
       PrintDeps(target, false);
     } else if (what == variables::kLibDirs) {
       PrintLibDirs(target, false);
     } else if (what == variables::kLibs) {
       PrintLibs(target, false);
     } else if (what == "runtime_deps") {
       PrintRuntimeDeps(target);
+//  }  Hidden closing brace in macro below.
 
     CONFIG_VALUE_HANDLER(defines, std::string)
     CONFIG_VALUE_HANDLER(include_dirs, SourceDir)
+    CONFIG_VALUE_HANDLER(arflags, std::string)
     CONFIG_VALUE_HANDLER(asmflags, std::string)
     CONFIG_VALUE_HANDLER(cflags, std::string)
     CONFIG_VALUE_HANDLER(cflags_c, std::string)
     CONFIG_VALUE_HANDLER(cflags_cc, std::string)
     CONFIG_VALUE_HANDLER(cflags_objc, std::string)
     CONFIG_VALUE_HANDLER(cflags_objcc, std::string)
     CONFIG_VALUE_HANDLER(ldflags, std::string)
 
     } else {
       OutputString("Don't know how to display \"" + what + "\".\n");
@@ skipping 48 matching lines @@
 
   if (is_binary_output) {
     OUTPUT_CONFIG_VALUE(defines, std::string)
     OUTPUT_CONFIG_VALUE(include_dirs, SourceDir)
     OUTPUT_CONFIG_VALUE(asmflags, std::string)
     OUTPUT_CONFIG_VALUE(cflags, std::string)
     OUTPUT_CONFIG_VALUE(cflags_c, std::string)
     OUTPUT_CONFIG_VALUE(cflags_cc, std::string)
     OUTPUT_CONFIG_VALUE(cflags_objc, std::string)
     OUTPUT_CONFIG_VALUE(cflags_objcc, std::string)
-    OUTPUT_CONFIG_VALUE(ldflags, std::string)
+
+    if (target->output_type() == Target::STATIC_LIBRARY)
+      OUTPUT_CONFIG_VALUE(arflags, std::string)
+    else if (target->output_type() != Target::SOURCE_SET)
+      OUTPUT_CONFIG_VALUE(ldflags, std::string)
   }
 
   if (target->output_type() == Target::ACTION ||
       target->output_type() == Target::ACTION_FOREACH) {
     PrintScript(target, true);
     PrintArgs(target, true);
     PrintDepfile(target, true);
   }
 
   if (target->output_type() == Target::ACTION ||
       target->output_type() == Target::ACTION_FOREACH ||
       target->output_type() == Target::COPY_FILES ||
       target->output_type() == Target::CREATE_BUNDLE) {
     PrintOutputs(target, true);
   }
 
   // Libs can be part of any target and get recursively pushed up the chain,
   // so always display them, even for groups and such.
   PrintLibs(target, true);
   PrintLibDirs(target, true);
 
   PrintDeps(target, true);
 
   return 0;
 }
 
 }  // namespace commands