Modified the file locking behavior so that the command "locking" is

recognized as a valid command when file locking has been disabled as
a compile-time option.  The command then generates an error on
"locking enable" but simply ignores the command "locking disable".

dbwind/DBWcommands.c

@@ -47,9 +47,7 @@ extern void CmdEdit(), CmdElement(), CmdErase(), CmdExpand(), CmdExtract();
 extern void CmdFeedback(), CmdFill(), CmdFindBox(), CmdFindLabel(), CmdFlush();
 extern void CmdGetcell(), CmdGrid(), CmdIdentify();
 extern void CmdLabel(), CmdLoad();
-#ifdef FILE_LOCKS
 extern void CmdLocking();
-#endif
 extern void CmdMove(), CmdNetlist(), CmdOrient(), CmdPaint(), CmdPath();
 extern void CmdPlow(), CmdPolygon(), CmdPort(), CmdProperty();
 extern void CmdRandom(), CmdSave(), CmdScaleGrid(), CmdSee();
@@ -372,11 +370,9 @@ DBWInitCommands()
     WindAddCommand(DBWclientID,
 	"load [cellname]	load a cell into a window",
 	CmdLoad, FALSE);
-#ifdef FILE_LOCKS
     WindAddCommand(DBWclientID,
 	"locking [enable|disable]	enable or disable file locking",
 	CmdLocking, FALSE);
-#endif
     WindAddCommand(DBWclientID,
 	"move [dir [amount]]	OR\n"
 	"move to x y		move box and selection, either by amount\n\