From a31812e179f24f71199e7b1c823ecd212f10472f Mon Sep 17 00:00:00 2001
From: Zdenek Dohnal <zdohnal@redhat.com>
Date: Fri, 24 Jan 2025 09:44:58 +0100
Subject: [PATCH] Fix build failure with GCC 15 and -std=c23

The newest standard has more strict data type checks, function pointers
in function prototypes have to declare data types of its arguments.

Upstream-Status: Backport [https://github.com/OpenPrinting/cups-filters/commit/9871a50b5c1f9c2caa2754aac1f5db70c886021b]

Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
---
 filter/foomatic-rip/process.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/filter/foomatic-rip/process.h b/filter/foomatic-rip/process.h
index f6e15f6..54a4292 100644
--- a/filter/foomatic-rip/process.h
+++ b/filter/foomatic-rip/process.h
@@ -18,7 +18,7 @@
 #include <sys/wait.h>
 
 
-pid_t start_process(const char *name, int (*proc_func)(), void *user_arg,
+pid_t start_process(const char *name, int (*proc_func)(FILE*, FILE*, void*), void *user_arg,
 		    FILE **fdin, FILE **fdout);
 pid_t start_system_process(const char *name, const char *command, FILE **fdin,
 			   FILE **fdout);
