This regression in mfprintf was introduced in October 2003 by ReK, in a patch to replace varargs with stdarg. http://mailman.us.netrek.org/pipermail/netrek-dev/2003-October/001266.html http://mailman.us.netrek.org/pipermail/netrek-dev/2003-October/001267.html We lacked controls to detect the regression. Successful controls may have been: 1. prototypes for functions, 2. test scripts validated against code coverage, -- James Cameron mailto:quozl at us.netrek.org http://quozl.netrek.org/