Re: AC_PROG_CC fails when target C library is missing fopen

[Ralf Corsepius]

On 08/12/2009 02:09 PM, Eric Blake wrote:
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> According to Paolo Bonzini on 8/10/2009 4:27 PM:
>    
> > On 08/11/2009 12:11 AM, Ralf Wildenhues wrote:
> >      
> > > I don't see in this discussion where the main argument to switch to
> > > using fopen is addressed:
> > > <http://thread.gmane.org/gmane.comp.sysutils.autoconf.patches/6656>
> > > IOW, how do you prevent AC_COMPUTE_INT and friends from getting you
> > > wrong answers on your system (if you happen to have a simulator around)?
> > >        
> > In my patch I use an empty source code file to determine the default
> > file name.  Then I use one with fopen to determine if the user is
> > cross-compiling; this would fail for RTEMS so that the preprocessor-only
> > AC_COMPUTE_INT is used.
> >      
> If we get feedback from both RTEMS
>    
FYI: I haven't forgotten about your patch, but haven't been able to look 
into this at depth yet, but hope to be able to look into this sometime 
next week. Sorry for the inconvenience.

Ralf