Re: [gfortran] Fix PR 20178: Implement g77 / f2c calling conventions

[Toon Moene <toon at moene dot indiv dot nluug dot nl>]

Paul Brook wrote:

> On Saturday 05 March 2005 15:32, Tobias Schlüter wrote:
>
> > Until I mentioned it on the mailing list, noone had complained that we
> > didn't implement a calling convention compatible with g77.  Unfortunately,
> > people seem to care, so I implemented it.
> >
> > The g77 calling convention requires two things for function results that we
> > didn't do:
> > - scalar COMPLEX functions return via a hidden argument
> > - default REAL functions return a C double
> >
> > I implemented this, but it is currently only enabled via a command-line
> > option.  If we decide that this is the right way, I propose making
> > -fno-second-underscore the default also, as compatibility with g77 will
> > then not be required for this either.

> I vote for keeping the current default, and leaving -ff2c as an option. I'm 
> sure we will get complaints whatever we choose, so we may as well choose the 
> most efficient option. (assuming a sane C abi for that particular target of 
> course ;-)

Ditto over here and please make -fno-second-underscore the default !

As long as people have the means (by specifying compile time options) to 
get the behaviour they want, we should choose the most efficient / 
straightforward option as the default.

--
Toon Moene - e-mail: toon@moene.indiv.nluug.nl - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
Maintainer, GNU Fortran 77: http://gcc.gnu.org/onlinedocs/g77_news.html
A maintainer of GNU Fortran 95: http://gcc.gnu.org/fortran/