On OpenBSD the file /usr/include/rpcsvc/ypclnt.h contains the following
declaration:

struct ypall_callback {
	/* return non-0 to stop getting called */
	int (*foreach)(unsigned long, char *, int, char *, int, void *);
	char *data;		/* opaque pointer for use of callback fn */
};

the 'foreach' function pointer's declaration in Modules/nismodule.c is
different:

gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -O3 -Wall
-Wstrict-prototypes -I. -I./Include -I/usr/local/include -IInclude
-I/home/henry/py3k -c /home/henry/py3k/Modules/nismodule.c -o
build/temp.openbsd-4.6-amd64-3.2/home/henry/py3k/Modules/nismodule.o
/home/henry/py3k/Modules/nismodule.c: In function `nis_cat':
/home/henry/py3k/Modules/nismodule.c:208: warning: assignment from
incompatible pointer type


The attached patch fixes this very important issue :)

Does someone know whether FreeBSD or NetBSD need the same treatment?

FreeBSD does.

http://svn.freebsd.org/viewvc/base/stable/7/include/rpcsvc/ypclnt.h?revision=172506&view=markup

But NetBSD doesn't:

http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/include/rpcsvc/ypclnt.h?rev=1.13&content-type=text/plain&only_with_tag=MAIN

On Mon, Jul 06, 2009 at 11:26:45PM +0000, Amaury Forgeot d'Arc wrote:
> 
> Amaury Forgeot d'Arc <amauryfa@gmail.com> added the comment:
> 
> Does someone know whether FreeBSD or NetBSD need the same treatment?
> 
> ----------
> nosy: +amaury.forgeotdarc
> 
> _______________________________________
> Python tracker <report@bugs.python.org>
> <http://bugs.python.org/issue6420>
> _______________________________________

What about this new patch?

It works on OpenBSD, but I don't have any FreeBSD to test. I should be
safe to commit though, the patch is rather trivial.

Thanks, fixed in r73873, r73874, r73875 and r73876.