Re: declaring only the functions that are defined

[Paul Eggert]

"Bruno Haible" <address@hidden> writes:

>> For the special case of nanosleep, one might want nanosleep declared
>> even if the nanosleep module isn't being used, for the benefit of
>> hosts that define nanosleep but don't declare it.
>
> Huh? If the program uses nanosleep(), it needs the gnulib module,
> for those hosts that don't have the function at all.

I was thinking of programs that use nanosleep only if HAVE_NANOSLEEP,
and which include timespec.h to get the nanosleep declaration.
I don't know of any such programs offhand, but it's plausible.