From a3ce3f59319c35f13cb966547bd76b3fa85e0014 Mon Sep 17 00:00:00 2001
From: Gabriel Ebner <gebner@gebner.org>
Date: Sat, 22 Aug 2020 19:06:43 +0200
Subject: [PATCH] qalculate-gtk: fix parallel build

---
 pkgs/applications/science/math/qalculate-gtk/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/applications/science/math/qalculate-gtk/default.nix b/pkgs/applications/science/math/qalculate-gtk/default.nix
index c3976d5601ae..d1ab05d4cde8 100644
--- a/pkgs/applications/science/math/qalculate-gtk/default.nix
+++ b/pkgs/applications/science/math/qalculate-gtk/default.nix
@@ -14,6 +14,9 @@ stdenv.mkDerivation rec {
   patchPhase = ''
     # https://github.com/Qalculate/qalculate-gtk/pull/178
     substituteInPlace configure.ac --replace 'libxml-2.0' 'libxml-2.0 gio-unix-2.0'
+
+    # https://github.com/Qalculate/qalculate-gtk/pull/179
+    echo searchprovider.o: gnome-search-provider2.c >>src/Makefile.am
   '';
 
   hardeningDisable = [ "format" ];