From 7f9288e33fadb40837a9c8c8d67753e664820bbd Mon Sep 17 00:00:00 2001
From: Sarah Clark <seclark@nextquestion.net>
Date: Wed, 22 Apr 2026 15:37:53 -0700
Subject: [PATCH] wdfs: fix Darwin build by setting CFLAGS=-std=gnu17

---
 pkgs/by-name/wd/wdfs/package.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/by-name/wd/wdfs/package.nix b/pkgs/by-name/wd/wdfs/package.nix
index 5afcb7de209e..073acd4ac0b2 100644
--- a/pkgs/by-name/wd/wdfs/package.nix
+++ b/pkgs/by-name/wd/wdfs/package.nix
@@ -27,6 +27,11 @@ stdenv.mkDerivation (finalAttrs: {
     neon
   ];
 
+  # autoconf 2.72 sets the C standard to C23 but not all compilers are ready for that
+  configureFlags = [
+    "CFLAGS=-std=gnu17"
+  ];
+
   postPatch = lib.optionalString stdenv.hostPlatform.isDarwin ''
     # Fix the build on macOS with macFUSE installed. Needs autoreconfHook to
     # take effect.