Added command to uninstall gcc before building & installing it.

Before this change the user had to unmerge an existing gcc-4.6.0 before
calling build_tc.py. This change incorporates that step in the script.

PRESUBMIT=passed
R=cmtice,shenhan,bjanakiraman
DELTA=5  (5 added, 0 deleted, 0 changed)
RCL=57542-p2
RDATE=2011/12/20 20:08:16


P4 change: 42662644
1 file changed
tree: bd570b570ffebba52e74c868e4d943697db2db87
  1. .git5_specs/
  2. v14/