Hey again - I was getting some strange segfaults when calling
H5Tconvert to go from unpacked to packed compound types (packed with
H5Tcopy + H5Tpack, while dealing with previously reported bug) in
another posix thread from where the H5 types were created/initalized.
The routines were crashing in H5TS_get_thread_local_value (rather
pthread_getspecific) - in H5TS_cancel_count_dec.  Is this expected?
Is it not safe to use types allocated in the main thread in a slave
thread and does that make any sense if so?  Is there any way to work
around the issue?

Thanks,
-Jason

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