waf: Allow building with MIT KRB5 >= 1.20
gssrpc/xdr.h:105:1: error: function declaration isn’t a prototype
[-Werror=strict-prototypes]
105 | typedef bool_t (*xdrproc_t)();
| ^~~~~~~
This can't be fixed, as the protoype is variadic. It can take up to three
arguments.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14870
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14881
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit
5d8e794551b5df835f07e2bd8348fef746144601)