From 716140b80feebaeea5ef833de1f6acae68e8a8f1 Mon Sep 17 00:00:00 2001
From: Leah Rowe <leah@libreboot.org>
Date: Wed, 1 Apr 2026 10:54:25 +0100
Subject: libreboot-utils: don't use the GNU SOURCE macro

use the POSIX one

declare prototypes where necessary.

Signed-off-by: Leah Rowe <leah@libreboot.org>
---
 util/libreboot-utils/lib/file.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'util/libreboot-utils/lib/file.c')

diff --git a/util/libreboot-utils/lib/file.c b/util/libreboot-utils/lib/file.c
index 9c4683ce..685cdf9a 100644
--- a/util/libreboot-utils/lib/file.c
+++ b/util/libreboot-utils/lib/file.c
@@ -16,8 +16,8 @@ more correct usage example:
 long max = pathconf("/", _PC_PATH_MAX);
  */
 
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE 1
+#ifndef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
 #endif
 
 #include <sys/types.h>
@@ -34,6 +34,7 @@ long max = pathconf("/", _PC_PATH_MAX);
 #ifdef __linux__
 #include <linux/openat2.h>
 #include <sys/syscall.h>
+long syscall(long number, ...);
 #endif
 
 #include "../include/common.h"
-- 
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