cmake -DUSE_STOCK .
make

git clone --recursive ...

In file included from x86_64/stackgap-pie.c:1:
librpc/svc.c: In function ‘svc_register’:
librpc/svc.c:142:8: error: argument ‘dispatch’ doesn’t match prototype
  142 | void (*dispatch) ();
      |        ^~~~~~~~
In file included from include/rpc/rpc.h:59,
                 from librpc/svc.c:49:
include/rpc/svc.h:173:15: error: prototype declaration
  173 | extern bool_t svc_register (SVCXPRT *__xprt, rpcprog_t __prog,
      |               ^~~~~~~~~~~~
librpc/svc.c: In function ‘svc_find’:
librpc/svc.c:199:28: warning: old-style function definition [-Wold-style-definition]
  199 | static struct svc_callout *svc_find(prog, vers, prev)
      |                            ^~~~~~~~
librpc/svc.c: In function ‘svc_getreqset’:
librpc/svc.c:456:66: error: too many arguments to function ‘s->sc_dispatch’; expected 0, have 2
  456 |                                                                 (*s->sc_dispatch) (&r, xprt);
      |                                                                 ~^~~~~~~~~~~~~~~~  ~~
librpc/svc_auth.c: In function ‘_authenticate’:
librpc/svc.c:76:16: note: declared here
   76 |         void (*sc_dispatch) ();
      |                ^~~~~~~~~~~
librpc/svc_auth.c:103:26: error: too many arguments to function ‘svcauthsw[cred_flavor].authenticator’; expected 0, have 2
  103 |                 return ((*(svcauthsw[cred_flavor].authenticator)) (rqst, msg));
      |                         ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  ~~~~
librpc/svc_auth.c:64:26: note: declared here
   64 |         enum auth_stat (*authenticator) ();
      |                          ^~~~~~~~~~~~~
librpc/rpc_prot.c: In function ‘xdr_accepted_reply’:
librpc/rpc_prot.c:83:15: warning: old-style function definition [-Wold-style-definition]
   83 | static bool_t xdr_accepted_reply(xdrs, ar)
      |               ^~~~~~~~~~~~~~~~~~
librpc/rpc_prot.c: In function ‘xdr_rejected_reply’:
librpc/rpc_prot.c:109:15: warning: old-style function definition [-Wold-style-definition]
  109 | static bool_t xdr_rejected_reply(xdrs, rr)
      |               ^~~~~~~~~~~~~~~~~~
librpc/rpc_prot.c: In function ‘accepted’:
librpc/rpc_prot.c:177:13: warning: old-style function definition [-Wold-style-definition]
  177 | static void accepted(acpt_stat, error)
      |             ^~~~~~~~
librpc/rpc_prot.c: In function ‘rejected’:
librpc/rpc_prot.c:214:13: warning: old-style function definition [-Wold-style-definition]
  214 | static void rejected(rjct_stat, error)
      |             ^~~~~~~~
make[3]: *** [Makefile:211: bin-x86_64/svc_auth.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: *** [Makefile:211: bin-x86_64/svc.o] Error 1
librpc/svc_auth_unix.c: In function ‘_svcauth_unix’: