Hello! I have the same issue as John Cheetham, from his post a couple of years ago. The issue persists with the latest build I could find, 6.2.5e. I use both Scid and Xboard and, in both cases, they appear to hang when trying to play a game against gnuchessu. When running gnuchessu from the command line, the appearance of 'White (1) : " requires at least a newline to be entered before the 'uci' command will work as expected.
It seems related to the removal of the 'showprompt' and 'ShowPrompt()' lines from main.cc and frontend/engine.cc from 6.2.4 but I do not know enough about C programming to fix it - other things break if i just add the deleted lines back in. Ryan
