Hi! We're currently trying to sort out the non-free status of scsh within Debian. Most of the issues are unambiguous, however, I'd like to see some more opinions on the following two clauses contained in a couple of source files.
scsh-0.6.4/scheme/big/sort.scm: ;;; 2. Users of this software agree to make their best efforts (a) to return ;;; to the T Project at Yale any improvements or extensions that they make, ;;; so that these may be included in future releases; and (b) to inform ;;; the T Project of noteworthy uses of this software. ;;; 3. All materials developed as a consequence of the use of this software ;;; shall duly acknowledge such use, in accordance with the usual standards ;;; of acknowledging credit in academic research. (srfi/srfi-13.scm and srfi-14.scm contain similar stuff, with the MIT scheme project instead of T Project at Yale.) Thanks, Daniel.
