Added library version checking

Samo Penic

2017-02-19 cb2faf7217a026ad114935c1fd71c96240c30055

 src/vertex.c

@@ -1,3 +1,4 @@
/* vim: set ts=4 sts=4 sw=4 noet : */
#include<stdlib.h>
#include<math.h>
#include<string.h>