http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58975
--- Comment #4 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> --- @Steve: When I say "f77" in lowercase, I'm talking about the f77 executable that comes as part of the "fort77" package on Ubuntu. (It works by invoking f2c followed by the C compiler.) The only reason I was trying to use gfortran on such old code in the first place was that I wanted to build it on OSX, and f77 doesn't seem to exist for OSX, so I tried gfortran instead, hoping that it would be compatible. (FWIW, I tried the -ff2c and/or -std=legacy options before posting this bug report; they didn't seem to help with this issue.) I'm okay with the EXTERNAL RAN workaround, though.
