hdf5_ep

[svn-r7854] Purpose:
    Bug Fix

Description:
    The FFLAGS, CXXFLAGS, and CPPFLAGS variables weren't carrying
    user-defined values into the Makefiles.

Solution:
    Changed the flags from FOO="..." to FOO="$FOO ..."

Platforms tested:
    Copper
    Verbena
    Arabica

Misc. update: