Hi Peter!

I have a patch for ltk that supposed to do the following:

- remove use of a deprecated function for sbcl:

"sb-debug:backtrace"

https://github.com/herth/ltk/blob/master/ltk/ltk.lisp#L5088

with "sb-debug:print-backtrace"

- prevent ltk to "leak" error messages from other applications (I have had problems with font-config, for example) into the communication pipe with user application, this pollute the messages sent on the pipe and makes the application crash.

I have just added ":error nil" to this line

https://github.com/herth/ltk/blob/master/ltk/ltk.lisp#L464

i feel this solution is sub-optimal as is not portable, probably UIOP could help here.

- clean a bit the code (mostly comes from Emacs for free ;-) )

Please can you tel me how can I send the patch to be reviewed? Is here a good place or should I set up a pull request on github?

Bye! C.