clang/linux: Build with -g0 if fastbuild=1 is set (e.g. on the buildbots)

build/common.gypi

 # Copyright (c) 2010 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 531 matching lines @@
               },
               'VCCLCompilerTool': {
                 'DebugInformationFormat': '0',
               }
             }
           }, { # else: OS != "win", generate less debug information.
             'variables': {
               'debug_extra_cflags': '-g1',
             },
           }],
+          # Clang creates chubby debug information, which makes linking very
+          # slow. For now, don't create debug information with clang.  See
+          # http://crbug.com/70000
+          ['OS=="linux" and clang==1', {
+            'variables': {
+              'debug_extra_cflags': '-g0',
+            },
+          }],
         ],  # conditions for fastbuild.
       }],  # fastbuild!=0
       ['selinux==1', {
         'defines': ['CHROMIUM_SELINUX=1'],
       }],
       ['win_use_allocator_shim==0', {
         'conditions': [
           ['OS=="win"', {
             'defines': ['NO_TCMALLOC'],
           }],
@@ skipping 942 matching lines @@
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: