Linux: Don't bother trying to install gold via apt-get. Just always build our own copy.

build/install-build-deps.sh

 #!/bin/bash -e
 
 # Copyright (c) 2011 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.
 
 # Script to install everything needed to build chromium (well, ideally, anyway)
 # See http://code.google.com/p/chromium/wiki/LinuxBuildInstructions
 # and http://code.google.com/p/chromium/wiki/LinuxBuild64Bit
 
@@ skipping 296 matching lines @@
     echo "Gold is a new linker that links Chrome 5x faster than GNU ld."
     echo -n "*** To use the gold linker, "
     echo "you must pass -B/usr/local/gold/bin/ to g++ ***"
     echo -n "Install the gold linker? (y/N) "
     if yes_no 1; then
       do_inst_gold=1
     fi
   fi
   if test "$do_inst_gold" = "1"
   then
-    # If the system provides a good version of gold, just install it.
-    if apt-cache show binutils-gold | grep -Eq 'Version: 2.2[1-9].*'; then
-      echo "Installing binutils-gold. Backing up ld as ld.single."
-      sudo apt-get install binutils-gold
-    else
-      echo "Building binutils with gold..."
-      install_gold || exit 99
-    fi
+    echo "Building binutils with gold..."
+    install_gold || exit 99
   else
     echo "Not installing gold."
   fi
 fi
 
 # Install 32bit backwards compatibility support for 64bit systems
 if [ "$(uname -m)" = "x86_64" ]; then
   if test "$do_inst_lib32" = ""
   then
     echo "Installing 32bit libraries not already provided by the system"
@@ skipping 169 matching lines @@
              sed -e 's/[.]so[.][0-9].*/.so/' |
              sort -u); do
     [ "x${i##*/}" = "xld-linux.so" ] && continue
     [ -r "$i" ] && continue
     j="$(ls "$i."* | sed -e 's/.*[.]so[.]\([^.]*\)$/\1/;t;d' |
          sort -n | tail -n 1)"
     [ -r "$i.$j" ] || continue
     sudo ln -s "${i##*/}.$j" "$i"
   done
 fi