### define sources for the front-end and backend
GTKsources = xboard.c xevalgraph.c xgamelist.c \
- xedittags.c xedittags.h \
xhistory.c xoptions.c xboard.h \
xengineoutput.c xevalgraph.h xgamelist.h \
xhistory.h
Xsources = xaw/xboard.c xaw/xboard.h \
- xaw/xedittags.c xaw/xedittags.h \
xaw/xengineoutput.c \
xaw/xevalgraph.c xaw/xevalgraph.h \
xaw/xgamelist.c xaw/xgamelist.h \