On Sun, Apr 21, 2013 at 10:57 AM, William Gropp <[email protected]> wrote:

Only g77 typically maps Foo_foo (in Fortran) to Foo_foo__ (double trailing underscore); if the Fortran name contains no underscore, only a single underscore is appended, so Foofoo goes to foofoo_ (I know of no Fortran compiler that has exactly the behavior in the text). gfortran uses a single trailing underscore, for example.

g95 also generates double-underscoring by default but now that gfortran has proper support for modern Fortran, I don't see much use of this compiler. Jeff -- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute [email protected] / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond ALCF docs: http://www.alcf.anl.gov/user-guides