[glibc] hurd: Add prototype for and thus fix _hurdsig_abort_rpcs call

[Samuel Thibault <sthibaul@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9736920963258a90c69e60fb8896ce3e70d18d3e

commit 9736920963258a90c69e60fb8896ce3e70d18d3e
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Tue Aug 15 22:41:23 2023 +0200

    hurd: Add prototype for and thus fix _hurdsig_abort_rpcs call
    
    This was actually not a problem since NULL was getting passed.

Diff:
---
 hurd/hurd/signal.h   |  6 ++++++
 hurd/thread-cancel.c | 11 +----------
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/hurd/hurd/signal.h b/hurd/hurd/signal.h
index 96b6fae007..290c455ad4 100644
--- a/hurd/hurd/signal.h
+++ b/hurd/hurd/signal.h
@@ -28,6 +28,7 @@
 #include <mach/mach_types.h>
 #include <mach/port.h>
 #include <mach/message.h>
+#include <thread_state.h>
 #include <hurd/hurd_types.h>
 #include <signal.h>
 #include <errno.h>
@@ -183,6 +184,11 @@ _hurd_self_sigstate (void)
 }
 # endif
 #endif
+
+extern mach_port_t
+_hurdsig_abort_rpcs (struct hurd_sigstate *ss, int signo, int sigthread,
+		     struct machine_thread_all_state *state, int *state_change,
+		     void (*reply) (void));
 \f
 /* Thread listening on our message port; also called the "signal thread".  */
 
diff --git a/hurd/thread-cancel.c b/hurd/thread-cancel.c
index b648046c3d..669d92c606 100644
--- a/hurd/thread-cancel.c
+++ b/hurd/thread-cancel.c
@@ -22,15 +22,6 @@
 #include <thread_state.h>
 
 
-/* See hurdsig.c.  */
-extern mach_port_t _hurdsig_abort_rpcs (struct hurd_sigstate *ss,
-					int signo, int sigthread,
-					struct machine_thread_all_state *,
-					int *state_change,
-					mach_port_t *reply_port,
-					mach_msg_type_name_t reply_port_type,
-					int untraced);
-
 error_t
 hurd_thread_cancel (thread_t thread)
 {
@@ -64,7 +55,7 @@ hurd_thread_cancel (thread_t thread)
 
       /* Interrupt any interruptible RPC now in progress.  */
       state.set = 0;
-      _hurdsig_abort_rpcs (ss, 0, 0, &state, &state_change, NULL, 0, 0);
+      _hurdsig_abort_rpcs (ss, 0, 0, &state, &state_change, NULL);
       if (state_change)
 	err = __thread_set_state (thread, MACHINE_THREAD_STATE_FLAVOR,
 				  (natural_t *) &state.basic,