hdf5_ep

[svn-r1083] Purpose:
    Bug fix

Problem:
    Currently, when --enable_preduction --disable-debug modes are
    selected during configure, the optimization level scheduled is
    -O (-O2).  Unfortunately, this level of optimization relaxes
    too much the alignments necesary for the building, and testing
    of the hdf5 library.

Solution:
    Lower the level of optimiztion to -O1.  This still maintains
    required alignments.

Platform tested:
    Irix6.5(fuga)