$Id$ Svc_Conf_[ly].cpp.diff are use to patch their respective files in ACE_wrappers/ace. They are used by Makefile in that directory, so users don't ordinarily need to be concerned with them. To updated Svc_Conf_l.cpp.diff: 1) cd to ACE_wrappers/ace. 2) Create the old version of the file in Svc_Conf_l.cpp.orig. If you haven't created the new version (with make) after update Svc_Conf.l, you can copy Svc_Conf_l.cpp to it. Otherwise, you can retrieve it from the CVS repository. 3) % make #### to create the new version of Svc_Conf_l.cpp 4) % diff -u Svc_Conf_l.cpp.orig Svc_Conf_l.cpp > ../etc/Svc_Conf_l.cpp.diff 5) % rm Svc_Con_l.cpp.orig 6) % cd ../etc 7) % cvs commit -ko -m'updated diff file' Svc_Conf_l.cpp.diff And similarly for Svc_Conf_y.cpp.