Description: fix building with GCC-15
 Fixed code for C23 by adding the correct parameter to the function declarator.
Author: Christian T. Steigies <cts@debian.org>
Bug-Debian: https://bugs.debian.org/1097410
Last-Update: 2025-05-01

--- a/signal.c
+++ b/signal.c
@@ -47,7 +47,7 @@
 }
 
 static void
-install_signal (int signum, RETSIGTYPE (*handler) ())
+install_signal (int signum, RETSIGTYPE (*handler) (int))
 /* Emulate the `signal' function via `sigaction'.  */
 {
   struct sigaction  action;
