K 10
svn:author
V 8
bdrewery
K 8
svn:date
V 27
2015-10-20T20:37:00.791355Z
K 7
svn:log
V 269
Improve safety of caching from r289659 by only importing of none of the
variables are already set.  This should cover odd cases such as the
COMPILER_TYPE override in lib/csu/powerpc64.

X-MFC-With:	r289659
MFC after:	3 weeks
Sponsored by:	EMC / Isilon Storage Division

END