Task

 verify the version/revision of your currently running (compiler/interpreter/byte-compiler/runtime environment/whatever your language uses) and exit if it is too old.
 check whether the variable "bloop" exists and whether the math-function "abs()" is available and if yes compute abs(bloop).


Extra credit

 Report the number of integer variables in global scope, and their sum.


Language.version //-->L(1,12,8,"2014-04-01")
if (Language.version[1] < 10) System.exit("Too old");
var bloop=-123;
if ((1).resolve("abs",1) and resolve("bloop",8)) bloop.abs().println()