where is libthread of maple-IDE?

[MrNoBodyToEVO]

include <pthread.h>

pthread_t pid;
void setup(){}
void loop(){}

error:'pthread_t' undefine.
what can I do if I want to use "pthread.h"?
Is there some way whose function is like ' -lpthread' that I can put in maple-IDE?
Otherwize,I can not use some code like 'int* i=new int;' eather.
Is there someone who knows about this?