Here’s an example: --8<---------------cut here---------------start------------->8--- $ ./meta/guile GNU Guile 3.0.9 Copyright (C) 1995-2023 Free Software Foundation, Inc.
Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'. This program is free software, and you are welcome to redistribute it under certain conditions; type `,show c' for details. Enter `,help' for help. scheme@(guile-user)> (with-error-to-port (%make-void-port "w") (lambda () (spawn "date" (list "date")))) Segmentation fault --8<---------------cut here---------------end--------------->8--- This is due to the careless use of ‘SCM_FPORT_FDES’ there. Ludo’.