Description:
------------
Previous bug #51076
http://bugs.php.net/bug.php?id=51076
was fixed by:
svn commit r295225 ( http://svn.php.net/viewvc?view=revision&revision=295225 )

but later, commit r295230 ( http://svn.php.net/viewvc?
view=revision&revision=295230)
updated shtool to version 2.0.8 without backporting the previous patch.
(In upstream, nothing changed regarding mkdir between 2.0.6 and  2.0.8)

And so, the race condition with -j>1 is still there. (In my case, it appeared 
during the "make install" step processing the installation of the extensions)

Error was: "mkdir: cannot create directory ... : File exists"


So, the patch in r295225 should be reapplied to shtool 2.0.8.


In a second time, why not replacing all the mkdir code block of shtool by 
something like:
if opt_p = no:
   mkdir ...
   chmod ...
   chown ...
   chgrp ...
   ...
else:
   mkdir -p ...
   chmod -R ...
   chown -R ...
   chgrp -R ...
   ...

That would be safer I think ...