From 22daf1c8ff31dc203bb71c2920fc43fe03af7075 Mon Sep 17 00:00:00 2001
From: Lucas Ransan <lucas@ransan.tk>
Date: Sun, 27 Dec 2020 12:55:17 +0100
Subject: [PATCH] mp4v2: fix build on gcc10

---
 pkgs/development/libraries/mp4v2/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/mp4v2/default.nix b/pkgs/development/libraries/mp4v2/default.nix
index 9601ae1eea3..3a036fcf6fb 100644
--- a/pkgs/development/libraries/mp4v2/default.nix
+++ b/pkgs/development/libraries/mp4v2/default.nix
@@ -21,6 +21,8 @@ stdenv.mkDerivation rec {
     })
   ];
 
+  NIX_CFLAGS_COMPILE = [ "-Wno-error=narrowing" ];
+
   # `faac' expects `mp4.h'.
   postInstall = "ln -s mp4v2/mp4v2.h $out/include/mp4.h";