Having just had to re-install Citrix Receiver because of my fresh install of Slackware 15 it seems to me that the page at
https://docs.slackware.com/howtos:ne...:citrix_client is out of date. It dates back to 2013.
There is a 64 bit tarball linuxx86-22.2.0.24.tar.gz which seems to work out of the box. I also found that I did not have to replace the lesstif widget library.
I suppose I could try and update it myself though I am not sure if I am competent to do so and I certainly don't know whether the Configuration and Caveats sections are still valid.