#include <u.h>#include <libc.h>#include "map.h"extern void abort(void); /* these routines duplicate names found in map.c.  they arecalled from routines in hex.c, guyou.c, and tetra.c, whichare in turn invoked directly from map.c.  this bad organizationarises from data hiding; only these three files know stuffthat's necessary for the proper handling of the unusual cutsinvolved in these projections. the calling routines are not advertised as part of the library,and the library duplicates should never get loaded, however theyare included to make the libary self-standing.*/ intpicut(struct place *g, struct place *og, double *cutlon){	g; og; cutlon;	abort();	return 0;} intckcut(struct place *g1, struct place *g2, double lon){	g1; g2; lon;	abort();	return 0;} doublereduce(double x){	x;	abort();	return 0;}