did I miss anything? since when do we need those at runtime?
Not at runtime no. Why do you think it is needed ?
be cause earlier I tried to showcase gmic to a friend it failed the whole time with a error about CImg … now I can not reproduce it anymore. the error was printed on the preview image of gmic_qt.
could it be that because I started gmic probably after a long time here, that it downloaded the filters from the internet and the error shown was related to that?