From f5101638b9f917dc4c569828ff3fee0c486ba8f8 Mon Sep 17 00:00:00 2001
From: Bernd Kuhls <bernd@kuhls.net>
Date: Wed, 30 Jul 2025 21:01:18 +0200
Subject: [PATCH] boot/syslinux: fix build with gcc-15.x

Fixes build error with gcc-15.x:

drivers/net/3c509-eisa.c:39:26: error:  initialization of 'void (*)(void)'
 from incompatible pointer type 'void (*)(struct nic *, struct eisa_device *)'
 [-Wincompatible-pointer-types]

For a similar fix see https://bugzilla.suse.com/show_bug.cgi?id=1243225

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>
---
 boot/syslinux/syslinux.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/boot/syslinux/syslinux.mk b/boot/syslinux/syslinux.mk
index 127f6b3cc1..b8f022b189 100644
--- a/boot/syslinux/syslinux.mk
+++ b/boot/syslinux/syslinux.mk
@@ -65,7 +65,7 @@ define SYSLINUX_BUILD_CMDS
 	$(TARGET_MAKE_ENV) $(MAKE1) \
 		ASCIIDOC_OK=-1 \
 		A2X_XML_OK=-1 \
-		CC="$(TARGET_CC)" \
+		CC="$(TARGET_CC) -std=gnu17" \
 		LD="$(TARGET_LD)" \
 		OBJCOPY="$(TARGET_OBJCOPY)" \
 		AS="$(TARGET_AS)" \