From 5a322693f4de4763e951f5df3f0026e914957ae4 Mon Sep 17 00:00:00 2001
From: worldofpeace <worldofpeace@users.noreply.github.com>
Date: Sat, 16 Feb 2019 02:40:40 -0500
Subject: [PATCH] libxmlb: fix build

Tests failed with:
ERROR:../src/xb-self-test.c:462:xb_builder_ensure_watch_source_func: assertion failed (error == NULL)
cannot process file of type application/x-zerosize (g-io-error-quark, 15)

See: https://hydra.nixos.org/build/88774485
---
 pkgs/development/libraries/libxmlb/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/libraries/libxmlb/default.nix b/pkgs/development/libraries/libxmlb/default.nix
index cce73ba89bc..bdf210a061a 100644
--- a/pkgs/development/libraries/libxmlb/default.nix
+++ b/pkgs/development/libraries/libxmlb/default.nix
@@ -22,6 +22,10 @@ stdenv.mkDerivation rec {
     "-Dgtkdoc=true"
   ];
 
+  preCheck = ''
+    export XDG_DATA_DIRS=$XDG_DATA_DIRS:${shared-mime-info}/share
+  '';
+
   doCheck = true;
 
   meta = with stdenv.lib; {