https://bugs.gentoo.org/943906
https://github.com/httperf/httperf/pull/84

From e6dd35c7bffbec001fe0eba4071bfcf3395c9cc6 Mon Sep 17 00:00:00 2001
From: Matt Hartley <mt-hartley@hotmail.com>
Date: Thu, 9 Oct 2025 18:44:15 -0500
Subject: [PATCH 1/2] fixed build issue with gcc 15

---
 src/httperf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/httperf.c b/src/httperf.c
index 5dbba07..c355493 100755
--- a/src/httperf.c
+++ b/src/httperf.c
@@ -1381,7 +1381,7 @@ main(int argc, char **argv)
 	}
 	core_init();
 
-	signal(SIGINT, (void (*)()) core_exit);
+	signal(SIGINT, (__sighandler_t) core_exit);
 
 	for (i = 0; i < num_stats; ++i)
 		(*stat[i]->init) ();

From 620afdd3a7d39764203c66d7b3144b5500653d4e Mon Sep 17 00:00:00 2001
From: Matt Hartley <mt-hartley@hotmail.com>
Date: Thu, 9 Oct 2025 18:55:03 -0500
Subject: [PATCH 2/2] got rid of offending cast entirely using a wrapper
 function

---
 src/httperf.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/httperf.c b/src/httperf.c
index c355493..a9bf213 100755
--- a/src/httperf.c
+++ b/src/httperf.c
@@ -228,6 +228,11 @@ perf_sample(struct Timer *t, Any_Type regarg)
 		      __LINE__);
 }
 
+void wrapped_core_exit(int _)
+{
+  core_exit();
+}
+
 int
 main(int argc, char **argv)
 {
@@ -1381,7 +1386,7 @@ main(int argc, char **argv)
 	}
 	core_init();
 
-	signal(SIGINT, (__sighandler_t) core_exit);
+	signal(SIGINT, wrapped_core_exit);
 
 	for (i = 0; i < num_stats; ++i)
 		(*stat[i]->init) ();

