hdf5_ep

[svn-r21738] Purpose:

    Revert part of r21275 (F2003 configure change) which unintentionally
    removed a line from configure.in that sets FC=no when fortran
    is not enabled. This ensures that configure doesn't run
    compiler checks on a fortran compiler when it won't be used.
    (and can cause failures in configure when no fortran compiler is
    present as well as issues with the resulting src/Makefile when
    building DLLs on Cygwin)

Tested:

    h5committest; manually on jam & bangan (Cygwin).