hdf5_ep

[svn-r17567] Purpose:

    Configure Fix

Description:

    Modified configure to set FC and CXX to "no" when fortran and c++ are
    not being compiled, respectively. This will prevent configure from running
    some checks on these compilers when they are not being used.

    This fixes a problem that was occuring when FC and/or CXX are set to
    a nonexistant or invalid compiler. Even if the languages were disabled,
    a libtool test would fail, thus preventing libtool from properly linking
    any libraries, yet configure would not flag an error message due to this
    because the languages were disabled.

Tested:

    - h5committest (jam, smirom, linew)
    - manually eyeballed configure output and logfile.