[CMake] fortran compiler failed to compile simple test program

[Ette, Anthony (CDS)]

> What is the output of "cf77 --version"?
Garbage (see below):
rts1-4:/home/bzpl46> cf77 --version
cf77 Fatal Error: invalid flag -io
I've scoured the cf77 docs and found nothing native so I've responded to concurrent and again asked how I can find unique identifying information for cmake to latch onto.  Will report back.

> That may be what it tells cf77 but that is not what it tells gcc.  From "man gcc":
> Anyway we should drop it for cf77 once we can identify that compiler as distinct from a GNU compiler.
Agreed on both counts although I've challenged concurrent to justify their decision to treat -rdynamic different than standard GNU.  I think ideally cf77 would handle -rdynamic same as standard GNU.  If that's really not an option, we should continue down the path of having cmake identify cf77 and strip the option.

Thank you again for all your help - you rock!
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