vchoi_fork

[svn-r10870] Purpose:
Bug fix

Description:
Fortran type detection failed on Cygwin.  This is because executables
in Cygwin have the .exe extension, which confused dependencies in
the Makefile.

Solution:
Sprinkled the $(EXEEXT) variable liberally about the fortran/src
Makefile.am.  This variable is set at configure time and will
be ".exe" on Cygwin and stay "" on Linux.

Platforms tested:
Cygwin, modi4, mir