Re: touch gets stuck for named pipes

[Paolo Bonzini]

>>> -             ac_cv_func_utime_null=no)])
>>> +             ac_cv_func_utime_null=yes)])
>> I'd write this as 'ac_cv_func_utime_null="guessing yes"', to make it obvious.
> 
> It would be a tad more backwards-compatible to stick with "yes".
> Consider a configure.ac that does this,
> 
>     AC_FUNC_UTIME_NULL
>     if test $ac_cv_func_utime_null = yes; then
>       ...
>     fi
> 
> That would malfunction with the "guessing yes" value.

I'll make it say "guessing yes" and still put "yes" in the variable.

Paolo