From 47b7700d5587fdf925130936cc24527f99f3ed5d Mon Sep 17 00:00:00 2001
From: Ryan Hendrickson <ryan.hendrickson@alum.mit.edu>
Date: Sat, 10 Jan 2026 23:24:57 -0500
Subject: [PATCH] daemontools: fix build with gcc15

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

diff --git a/pkgs/by-name/da/daemontools/package.nix b/pkgs/by-name/da/daemontools/package.nix
index ff4b1597c869..c3f9d28f38c7 100644
--- a/pkgs/by-name/da/daemontools/package.nix
+++ b/pkgs/by-name/da/daemontools/package.nix
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
 
     cd daemontools-${version}
 
-    sed -i -e '1 s_$_ -include ${glibc.dev}/include/errno.h_' src/conf-cc
+    sed -i -e '1 s_$_ -include ${glibc.dev}/include/errno.h -std=gnu17_' src/conf-cc
 
     substituteInPlace src/Makefile \
       --replace-fail '/bin/sh' '${bash}/bin/bash -oxtrace'