Newlib's non-posix'ness [Re: KSH is pdksh]

Earnie Boyd earnie_boyd@yahoo.com
Thu Jan 25 16:17:00 GMT 2001


Mumit Khan wrote:
> 
> On Thu, 25 Jan 2001, Earnie Boyd wrote:
> 
> > Matthew Smith wrote:
> > >
> > > Can anyone suggest an elegant way around this?
> > >
> >
> > Fix the code.  Remove the redefinitions.
> 
> FYI, it's newlib that provides the incorrect declaration. It's one of
> those cases where newlib's declarations don't quite match POSIX/UNIX98,
> but small enough that nobody has bothered to fix those. Mostly has to
> do with signed vs unsigned (eg., size_t vs ssize_t) and those little
> nits. Interestingly enough, someone, quite possibly Joel Scherrill, had
> gone through newlib and fixed most of these, if not all, but only for
> RTEMS!
> 
> POSIX:
>     ssize_t read (int, void *, size_t);
> 
> newlib:
>     #ifdef __rtems__
>       ssize_t read (int, void *, size_t);
>     #else
>       int read (int, void *, size_t);
>     #endif
> 
> Perhaps Chris and/or DJ know why that is the case.
> 
> When you have a conflict between Glenn Fowler's AT&T AST and another
> library, chances are that AST is doing the right thing.
> 

There's been other chatter about problems with __rtems__ and Cygwin on
the newlib list; but, it was wrt pthreads.  I've CCed newlib on this.

Earnie.

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