Re: autoconf tests and stdcall name mangling

[Dimitrios Apostolou]

On Wed, 22 May 2013, Zack Weinberg wrote:
> On Wed, May 22, 2013 at 1:06 PM, Nick Bowler <address@hidden> wrote:
> > The fundamental problem, I think, is that you really need the proper
> > headers included and AC_REPLACE_FUNCS does not seem to allow you to
> > specify the includes.  So you probably can't use this macro at all.
> >
> > You can use AC_LINK_IFELSE to fully specify the test program to compile
> > and link, which is probably what you'll need to do here.  This may still
> > be tricky to get right.  Alternately, Gnulib[1] has a getaddrinfo module[2]
> > which may already do everything you need (although I have not used it).
>
> I wrote the attached macro to solve a closely related problem (looking
> for ntohl, not getaddrinfo; the way Winsock works, it's equivalent).
> Perhaps it will be useful to you.
>
> Going forward I think AC_*_FUNC[S] really need to grow a way to
> specify headers.  Fake-declaring everything as "char foo();" has been
> kinda silly for years now.

What I really need from autoconf is to append to config.h the results of 
the tests so far right after every test. That way I'd be able to #include 
"platform.h" instead of AC_DEFAULT_INCLUDES and I'd get an increasing 
number of headers included after every test.

That in combination to checking for the exact prototype I define, would 
have resolved many of my problems. Something like:
AC_CHECK_FUNC([int getaddrinfo(NULL,NULL,NULL,NULL)])


Thanks,
Dimitris