From a656aeb7f134a3ac8376dcf527cf29327d2d796e Mon Sep 17 00:00:00 2001
From: Matthew Bauer <mjbauer95@gmail.com>
Date: Sat, 7 Mar 2020 17:12:03 -0500
Subject: [PATCH] libvisual: fix null malloc check on cross

this is needed to build
---
 pkgs/development/libraries/libvisual/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/libraries/libvisual/default.nix b/pkgs/development/libraries/libvisual/default.nix
index 6e8e2d95b6b..28d4331daaa 100644
--- a/pkgs/development/libraries/libvisual/default.nix
+++ b/pkgs/development/libraries/libvisual/default.nix
@@ -13,6 +13,11 @@ stdenv.mkDerivation rec {
 
   hardeningDisable = [ "format" ];
 
+  configureFlags = stdenv.lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+    "ac_cv_func_malloc_0_nonnull=yes"
+    "ac_cv_func_realloc_0_nonnull=yes"
+  ];
+
   meta = {
     description = "An abstraction library for audio visualisations";
     homepage = https://sourceforge.net/projects/libvisual/;