From a046d8c873e1f792364a4a9e4e5600613b224003 Mon Sep 17 00:00:00 2001
From: obadz <obadz-git@obadz.com>
Date: Fri, 29 Jun 2018 21:24:04 +0100
Subject: [PATCH] citrix-receiver: override libidn 1.35 back to 1.34 just for
 this binary pkg

---
 .../networking/remote/citrix-receiver/default.nix   | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/networking/remote/citrix-receiver/default.nix b/pkgs/applications/networking/remote/citrix-receiver/default.nix
index 9190deb990e..26cc0cb6e70 100644
--- a/pkgs/applications/networking/remote/citrix-receiver/default.nix
+++ b/pkgs/applications/networking/remote/citrix-receiver/default.nix
@@ -1,5 +1,6 @@
 { stdenv
 , lib
+, fetchurl
 , requireFile
 , makeWrapper
 , libredirect
@@ -27,6 +28,16 @@
 }:
 
 let
+  # In 56e1bdc7f9c (libidn: 1.34 -> 1.35), libidn.so.11 became libidn.so.12.
+  # Citrix looks for the former so we build version 1.34 to please the binary
+  libidn_134 = libidn.overrideDerivation (_: rec {
+    name = "libidn-1.34";
+    src = fetchurl {
+      url = "mirror://gnu/libidn/${name}.tar.gz";
+      sha256 = "0g3fzypp0xjcgr90c5cyj57apx1cmy0c6y9lvw2qdcigbyby469p";
+    };
+  });
+
   versionInfo = {
     "13.4.0" = rec {
       major     = "13";
@@ -160,7 +171,7 @@ let
         xorg.libXinerama
         xorg.libXfixes
         libpng12
-        libidn
+        libidn_134
         zlib
         gtk_engines
         freetype