From 929a53f2814982247f34fa296f6c1dd0435caf20 Mon Sep 17 00:00:00 2001
From: Matthieu Coudron <mattator@gmail.com>
Date: Sun, 19 Aug 2018 22:03:30 +0900
Subject: [PATCH] libvirt: fix dlopen("libjansson.so.4")

Commit 59027e2 broke libvirt broke libvirt/nixops on linux.
Use ${targetPlatform.extensions.sharedLibrary} to accomodate both linux and darwin.
---
 pkgs/development/libraries/libvirt/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/libvirt/default.nix b/pkgs/development/libraries/libvirt/default.nix
index 63f11daad288..4b104a04c15d 100644
--- a/pkgs/development/libraries/libvirt/default.nix
+++ b/pkgs/development/libraries/libvirt/default.nix
@@ -60,7 +60,9 @@ in stdenv.mkDerivation rec {
       --replace 'lxc_path,' '"/run/libvirt/nix-emulators/libvirt_lxc",'
 
     patchShebangs . # fixes /usr/bin/python references
-  '';
+    substituteInPlace src/util/virjsoncompat.c --replace \
+        '"libjansson.so.4"' '"${jansson}/lib/libjansson${stdenv.targetPlatform.extensions.sharedLibrary}"'
+   '';
 
   configureFlags = [
     "--localstatedir=/var"