From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 7 Jun 2025 23:55:18 +0000 (+0200)
Subject: grub2: set -std=gnu17
X-Git-Tag: v23.05.6~30
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F19065%2Fhead;p=thirdparty%2Fopenwrt.git

grub2: set -std=gnu17

Arch Linux updated to GCC15 which now defaults to GNU23 as the default
instead of GNU17[1], and this breaks grub compilation.

This is fixed in more recent grub2 versions.

[1] https://gcc.gnu.org/gcc-15/porting_to.html#c23

Link: https://github.com/openwrt/openwrt/pull/19065
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---

diff --git a/package/boot/grub2/Makefile b/package/boot/grub2/Makefile
index 865feee9ad1..d7923d7f024 100644
--- a/package/boot/grub2/Makefile
+++ b/package/boot/grub2/Makefile
@@ -73,6 +73,8 @@ endef
 
 HOST_BUILD_PREFIX := $(STAGING_DIR_HOST)
 
+HOST_CFLAGS +=-std=gnu17
+
 CONFIGURE_VARS += \
 	grub_build_mkfont_excuse="don't want fonts"