hdf5_ep

[svn-r9384] Purpose:
    Refactor and update fortran configuration

Description:
    Changed configure.in to include the production, debugging and profiling
flags for FORTRAN in the command line.

    Added '-flags' files for PGI and Intel C compilers

    Added '-fflags' files for PGI and Intel FORTRAN compilers

    Updated 'gnu-flags' file for GNU C compiler to not modify compiler flags
when gcc is not being used.

    Make detection of the correct FORTRAN compiler a bit smarter for Linux
platforms.  (And carried over some of the minor changes to other affected
machines)

Platforms tested:
    Linux 2.4 (tungsten) w/PGI and Intel C & FORTRAN compilers.
    Changes not tested by h5committest