From 2e808509f01865e86568c107d20c0d4f8fa6ab1e Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Wed, 4 Sep 2019 20:45:18 -0500
Subject: [PATCH] xbps: fix build w/glibc, disable errors due to unused fread
 result

---
 pkgs/tools/package-management/xbps/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/tools/package-management/xbps/default.nix b/pkgs/tools/package-management/xbps/default.nix
index f85f7988827c..f83a1498825b 100644
--- a/pkgs/tools/package-management/xbps/default.nix
+++ b/pkgs/tools/package-management/xbps/default.nix
@@ -17,6 +17,8 @@ stdenv.mkDerivation rec {
 
   patches = [ ./cert-paths.patch ];
 
+  NIX_CFLAGS_COMPILE = [ "-Wno-error=unused-result" ];
+
   postPatch = ''
     # fix unprefixed ranlib (needed on cross)
     substituteInPlace lib/Makefile \