patch.bbclass: unset TMPDIR after use

GNU Patch < 2.6.1 has a race condition so we create a per-instance TMPDIR to
avoid this.  This was implemented by setting os.environ[TMPDIR] but at the end
of do_patch the temporary directory is deleted but TMPDIR is not unset.

In general this doesn't cause a problem but if do_patch is embedded in a larger
function then TMPDIR is set to a directory that doesn't exist.  Avoid this by
removing TMPDIR from os.environ when the directory is deleted.

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions