Don't screw up /usr/bin/ld if you can't write to current dir as root....

Don't screw up /usr/bin/ld if you can't write to current dir as root.
BUG=http://crbug.com/15700
TEST=make sure ld is not gold, make sure root can't write to your nfs home directory, copy this script there, run it, let it install gold, verify it aborts early without torching /usr/bin/ld


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=19683

[dank, 2009-06-30 20:57:34]

This should avert the damage.

I'm not worried about making this work if root
can't write to the directory containing the
script.  I suspect most google engineers are already
familiar with the limitation and/or put their client
on a local directory.

[Paweł Hajdan Jr., 2009-06-30 23:36:12]

After addressing this one issue, LGTM. Thanks for quick patch!

http://codereview.chromium.org/151113/diff/1/2
File build/install-build-deps.sh (right):

http://codereview.chromium.org/151113/diff/1/2#newcode69
Line 69: make install failed, not installing gold
Shouldn't that be echo?