From 2f40fbd37aa2d1bfb3fa5eb574fe41d0076deb38 Mon Sep 17 00:00:00 2001
From: Reno Dakota <paparodeo@proton.me>
Date: Mon, 30 Dec 2024 19:55:30 -0600
Subject: [PATCH] efitools: fix build

GNU_SOURCE required with latest gcc.
---
 pkgs/by-name/ef/efitools/package.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/by-name/ef/efitools/package.nix b/pkgs/by-name/ef/efitools/package.nix
index 8f793128f4be..5248199c6873 100644
--- a/pkgs/by-name/ef/efitools/package.nix
+++ b/pkgs/by-name/ef/efitools/package.nix
@@ -39,6 +39,7 @@ stdenv.mkDerivation rec {
     sed -i -e 's#/usr/include/efi#${gnu-efi}/include/efi/#g' Make.rules
     sed -i -e 's#/usr/lib64/gnuefi#${gnu-efi}/lib/#g' Make.rules
     sed -i -e 's#$(DESTDIR)/usr#$(out)#g' Make.rules
+    sed -i '$asign-efi-sig-list.o flash-var.o: CFLAGS += -D_GNU_SOURCE' Makefile
     substituteInPlace lib/console.c --replace "EFI_WARN_UNKOWN_GLYPH" "EFI_WARN_UNKNOWN_GLYPH"
     patchShebangs .
   '';