From cedddfb41f2b1d7b296430d381765ef1c83a6d4a Mon Sep 17 00:00:00 2001
From: Marius DAVID <mariusdavid@laposte.net>
Date: Thu, 6 Jan 2022 16:20:17 +0100
Subject: [PATCH] openh264: fix compilation for windows

---
 pkgs/development/libraries/openh264/default.nix | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/openh264/default.nix b/pkgs/development/libraries/openh264/default.nix
index 3858cb4dc2d5..93fc495d3854 100644
--- a/pkgs/development/libraries/openh264/default.nix
+++ b/pkgs/development/libraries/openh264/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, nasm }:
+{ lib, stdenv, fetchFromGitHub, nasm, windows }:
 
 stdenv.mkDerivation rec {
   pname = "openh264";
@@ -13,10 +13,16 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ nasm ];
 
+  buildInputs = lib.optional stdenv.hostPlatform.isWindows windows.pthreads;
+
   makeFlags = [
     "PREFIX=${placeholder "out"}"
     "ARCH=${stdenv.hostPlatform.linuxArch}"
-  ];
+  ] ++ lib.optional stdenv.hostPlatform.isWindows "OS=mingw_nt";
+
+  enableParallelBuilding = true;
+
+  hardeningDisable = lib.optional stdenv.hostPlatform.isWindows "stackprotector";
 
   meta = with lib; {
     description = "A codec library which supports H.264 encoding and decoding";