Patch attached...
>From b31ad22a3b618dbebfc209887b3383a7ce8210b8 Mon Sep 17 00:00:00 2001
From: Danny Milosavljevic <dan...@scratchpost.org>
Date: Tue, 19 Dec 2017 10:45:15 +0100
Subject: [PATCH] gnu: xfce4-session: Disable (duplicate) Gtk+ icon cache
generation.
Tags: patch
* gnu/packages/xfce.scm (xfce4-session)[arguments]: Add make-flags to disable
Gtk+ icon cache generation.
---
gnu/packages/xfce.scm | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/gnu/packages/xfce.scm b/gnu/packages/xfce.scm
index 7668a1d38..bbe6ab454 100644
--- a/gnu/packages/xfce.scm
+++ b/gnu/packages/xfce.scm
@@ -492,7 +492,10 @@ your system in categories, so you can quickly find and launch them.")
(build-system gnu-build-system)
(arguments
'(#:configure-flags
- (list (string-append "--with-xsession-prefix=" %output))))
+ (list (string-append "--with-xsession-prefix=" %output))
+ ;; Disable icon cache update.
+ #:make-flags
+ '("gtk_update_icon_cache=true")))
(native-inputs
`(("pkg-config" ,pkg-config)
("intltool" ,intltool)))
