clim-modeline: redisp fails with error.

[ethanxxxl]

When I load clim-mode-line and call redisp, the function fails, saying it tried to call (frame-width NIL). Upon further inspection, it appears that once clim-mode-line starts, stump adds a bunch of superfluous modelines to stumpwm::*mode-lines*. Since these mode-lines have their head slots set to nil, the redisp function can't properly resize the frame windows for them.

I was able to partially fix this by removing the invalid modelines from stumpwm::*mode-lines*:
(setf stumpwm::*mode-lines* (remove-if-not #'stumpwm::mode-line-head stumpwm::*mode-lines*)

I think a better solution would involve controlling how the clim-mode-line is detected by stumpwm. I am not sure how clim-mode-line is detected by stumpwm in the first place, however. It seems that stumpwm somehow automatically detects external mode-lines when they are launched.