Add LC_ALL=C to gcc linker wrappers to speed up links

build/toolchain/gcc_link_wrapper.py

Index: build/toolchain/gcc_link_wrapper.py
diff --git a/build/toolchain/gcc_link_wrapper.py b/build/toolchain/gcc_link_wrapper.py
index c701c1b99c1a55efa42e73eb33b874d830a5d0d7..c589fe330d4c10926aa1411af00a1942ee56f7f4 100755
--- a/build/toolchain/gcc_link_wrapper.py
+++ b/build/toolchain/gcc_link_wrapper.py
@@ -11,6 +11,7 @@ does not have a POSIX-like shell (e.g. Windows).
 """
 
 import argparse
+import os
 import subprocess
 import sys
 
@@ -47,8 +48,10 @@ def main():
                       help='Linking command')
   args = parser.parse_args()
 
-  # First, run the actual link.
-  result = subprocess.call(CommandToRun(args.command))
+  # Work-around for gold being slow-by-default. http://crbug.com/632230
+  fast_env = dict(os.environ)
+  fast_env['LC_ALL'] = 'C'
+  result = subprocess.call(CommandToRun(args.command), env=fast_env)
   if result != 0:
     return result