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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.

(From OE-Core rev: 51ea4378864f1468df2ca282a84f78a17d6861aa)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ross Burton 2014-06-26 15:16:55 +01:00 committed by Richard Purdie
parent 0ae5aadc6b
commit 442efc3959
1 changed files with 1 additions and 0 deletions
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meta/classes/patch.bbclass
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@ -177,6 +177,7 @@ python patch_do_patch() {
bb.fatal(str(e))
bb.utils.remove(process_tmpdir, True)
del os.environ['TMPDIR']
}
patch_do_patch[vardepsexclude] = "PATCHRESOLVE"