-/* manage.c */
-extern void attach(Client *c); /* attaches c to global client list */
-extern void attachstack(Client *c); /* attaches client to stack */
-extern void compileregexps(void); /* initialize regexps of rules defined in config.h */
-extern void detach(Client *c); /* detaches c from global client list */
-extern void detachstack(Client *c); /* detaches client from stack */
-extern void dofloat(void); /* arranges all windows floating */
-extern void dotile(void); /* arranges all windows tiled */
-extern void focusnext(Arg *arg); /* focuses next visible client, arg is ignored */
-extern void focusprev(Arg *arg); /* focuses previous visible client, arg is ignored */
-extern Client *getclient(Window w); /* return client of w */
-extern void incnmaster(Arg *arg); /* increments nmaster with arg's index value */