Hi. As clisp has over 1600 dependent packages, updating it should be done on a "lisp-team" branch which will be merged into the master branch if all goes well. However I can't do that right now as I'm on holiday until next week. Sharlatan Hellseher skribis: > * gnu/packages/lisp.scm (clisp)[arguments]: Add configuration options to > support threads on x86_64-linux system. > [...] > + ,@(if (string-prefix? "x86_64-linux" > + (or (%current-system) > + (%current-target-system))) > + '("--enable-portability" > + "--with-threads=POSIX_THREADS") > + '()) Does clisp only support threads on x86-64, or could it be enabled for some other architectures?