hdf5_ep

[svn-r10603] Purpose:
     Bug fix.

Description:
     The nbit filter test case (compound datatype with no-op field)
     can not pass the daily test on heping and eirene when the
     enable-production option is set with configure and PGI compiler
     is used. It will generate segmentation fault.

Solution:
     It was found that the seg fault disappears when adding a new
     index variable in the test case and using it instead of using
     an existing index variable twice during initialization.

     This does not make much sense since previous codes is logically
     equivalent to the changed codes. So, some other factors beyond
     the test case codes may have caused the problem.

Platforms tested:
     heping

Misc. update: