From cf909cc109dcb59fe393cb730ed4298075ce8e10 Mon Sep 17 00:00:00 2001
From: Ryan Hendrickson <ryan.hendrickson@alum.mit.edu>
Date: Sat, 10 Jan 2026 23:31:49 -0500
Subject: [PATCH] djbdns: fix build with gcc15

---
 pkgs/by-name/dj/djbdns/package.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/by-name/dj/djbdns/package.nix b/pkgs/by-name/dj/djbdns/package.nix
index 672ea0928e5f..252f240d3019 100644
--- a/pkgs/by-name/dj/djbdns/package.nix
+++ b/pkgs/by-name/dj/djbdns/package.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
   ];
 
   postPatch = ''
-    echo gcc -O2 -include ${glibc.dev}/include/errno.h > conf-cc
+    echo gcc -O2 -include ${glibc.dev}/include/errno.h -std=gnu17 > conf-cc
     echo $out > conf-home
     # djbdns ships with an outdated list of root servers
     awk '/^.?.ROOT-SERVERS.NET/ { print $4 }' ${dns-root-data}/root.hints > dnsroots.global