From cbd645f4ac9f05e91e763740c625337d73592b39 Mon Sep 17 00:00:00 2001
From: OPNA2608 <christoph.neidahl@gmail.com>
Date: Sat, 21 May 2022 01:32:40 +0200
Subject: [PATCH] np2kai: Fix Darwin build

---
 pkgs/applications/emulators/np2kai/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/applications/emulators/np2kai/default.nix b/pkgs/applications/emulators/np2kai/default.nix
index 0ed47af8f5b..dd5e53967c0 100644
--- a/pkgs/applications/emulators/np2kai/default.nix
+++ b/pkgs/applications/emulators/np2kai/default.nix
@@ -156,6 +156,9 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
+  # TODO Remove when bumping past rev22
+  NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin "-D_DARWIN_C_SOURCE";
+
   buildPhase = optionalString enableSDL ''
     cd sdl2
     for mkfile in ${sdlMakefiles}; do