Point to gcc 4.6

Change-Id: I2bd6554f3636f6701d73d60d616ffc0cc480687d
Merge "Point to gcc 4.6"
am 0c328eae: Merge "Point to gcc 4.6"

* commit '0c328eae6ea431cc7014502403830ae2b5bc1210':
  Point to gcc 4.6
Add -ldl for opannotate, oparchive, etc, in pp/Android.mk

The new libbfd.a is compiled with plugin enabled.  The plugin.o in
it need dlopen, dlsym, etc

Change-Id: I63912ddc151fe3f6a34274e6200db6e7a16c910d
Merge "Add -ldl for opannotate, oparchive, etc, in pp/Android.mk"
Merge remote-tracking branch 'goog/master' into HEAD