obj/play.o: In function `CommandDouble':
D:/Documents/Max/gnubg-build/builds/gnubg-MAIN-noglade/gnubg/play.c:2245:
undefined reference to `_UserCommand'
obj/relational.o: In function `CommandRelationalShowPlayers':
D:/Documents/Max/gnubg-build/builds/gnubg-MAIN-noglade/gnubg/relational.c:739:
undefined reference to `_UserCommand'