new gfortran failures on MacOS X

[Jack Howarth]

   I tried one other test...

gfortran -m64 -O direct_io_6.f90

...to see if the problem was specific to 32-bit binaries
on MacOS X. However that doesn't run. I get a run-time error of...

At line dyld: lazy symbol binding failed: Symbol not found: ___umodti3
  Referenced from: /sw/lib/gcc4/lib/ppc64/libgfortran.2.dylib
  Expected in: dynamic lookup

dyld: Symbol not found: ___umodti3
  Referenced from: /sw/lib/gcc4/lib/ppc64/libgfortran.2.dylib
  Expected in: dynamic lookup

Trace/BPT trap

So I guess that needs fixed as well.
            Jack