[oe] Issues with .list files

[Michael Smith]

Michael Morrell wrote:

> Second, when a bitbake run is done with lots of parallelism, it is
> possible that it tries to open a nonexistent .list file (it was there
> when it did the os.listdir call, but that package later removed it
> before it recreates it), causing a crash here.  We are seeing such
> crashes reasonably often.

Yeah, package_do_shlibs() in package.bbclass should probably write to a 
temp file and then link it into place. Right now it just removes and 
rewrites.

Mike