tree af18bd7447c199f1c99fe0dc9b880aeb30dc8b3a
parent 7253e0b8a486797347b8bdec43aa98ce135f3ad7
author Dan Willemsen <dwillemsen@google.com> 1458680897 -0700
committer Dan Willemsen <dwillemsen@google.com> 1458701616 -0700

Improve BUILDDIR handling with symlinks

If BUILDDIR is a local symlink to another directory in the same parent
directory (out -> out.angler), then using out and .. as relative paths
to get back and forth work.

But if BUILDDIR is a symlink to another directory altogether (out ->
/mnt/sdd/out.master), then we shouldn't be relying on relative paths (so
that the source directory can still be moved).

Change-Id: I946c8116090410ab2b935eafba9b6e96f5f2f1dd