bug#23317: openssh: ssh client: xauth path is invalid - "/usr/X11R6/bin/xauth"

[Danny Milosavljevic]

$ ssh -X daya20
Warning: untrusted X11 forwarding setup failed: xauth key data not generated

Because:

$ strings $(which ssh) |grep  /xauth
/usr/X11R6/bin/xauth
%s/xauthfile

However,

$ which xauth
/home/dannym/.guix-profile/bin/xauth

Adding the following and rebuilding doesn't help either (for some reason):
diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm
index b8f107b..d85124b 100644
--- a/gnu/packages/ssh.scm
+++ b/gnu/packages/ssh.scm
@@ -35,6 +35,7 @@
   #:autoload   (gnu packages boost) (boost)
   #:use-module (gnu packages base)
   #:use-module (gnu packages tls)
+  #:use-module (gnu packages xorg)
   #:use-module (gnu packages)
   #:use-module (guix packages)
   #:use-module (guix download)
@@ -131,7 +132,8 @@ a server that supports the SSH-2 protocol.")
    (build-system gnu-build-system)
    (inputs `(("groff" ,groff)
              ("openssl" ,openssl)
-             ("zlib" ,zlib)))
+             ("zlib" ,zlib)
+             ("xauth" ,xauth)))
    (arguments
     `(#:test-target "tests"
       #:phases

But
  $ ssh -o XAuthLocation=$(which xauth) daya20
works.