Your bug report #20302: peek-char messes up file position on binary string ports which was filed against the guile package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 20302@debbugs.gnu.org. -- 20302: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20302 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems