Thanks for sharing this information. Could you ask quicklisp to apply this as a local patch or to upgrade their packages to be compatible?

How does one find the exact versions used by quicklisp? i.e. tarball url or repository and version number, local patches, etc.

- Daniel

I was mistaken; I didn't get able from quicklisp. I had the git master branch from common-lisp.net. Able isn't in quicklisp. The able 0.21 release is actually using the :padx 1 :pady 1 version, so it works for me without the edit. Quicklisp is serving ltk-0.91, which matches the version at http://www.peter-herth.de/ltk/. The most detailed list of quicklisp packages seems to be /www.quicklisp.org/beta/releases.html, or you can use (ql:system-apropos "project") if you use quicklisp. For completeness, here is the error I get in ccl on linux when create-widgets uses :padding internally. An error of type SIMPLE-PROGRAM-ERROR has occured: :PADDING is an invalid initarg to INITIALIZE-INSTANCE for #<STANDARD-CLASS LTK:FRAME>. Valid initargs: (:GRID :PLACE :PACK :WIDTH :VISUAL :TAKEFOCUS :RELIEF :PADY :PADX :HIGHLIGHTTHICKNESS :HIGHLIGHTCOLOR :HIGHLIGHTBACKGROUND :HEIGHT :CURSOR :CONTAINER :COLORMAP :CLASS :BORDERWIDTH :BACKGROUND :NAME :MASTER :PATH :INIT-COMMAND).