Building a module with node-gyp

[NodeNinja]

Trying to build this  https://github.com/substack/node-bigint module with node-gyp on windows. This lib wraps around libgmp

It was previously using node-waf.

For gmp on windows I downloaded the static version for vc++ from here http://www.cs.nyu.edu/exact/core/gmp/

and put in a  folder called 'gmp' in the bigint root dir

then I created a binding.gyp file as 

{

  "targets": [

    {

      "target_name": "bigint",

      "sources": [ "bigint.cc" ],

 "include_dirs": [ "gmp" ]

    }

  ]

}

then I did 

node-gyp configure

and it created a build folder in the bigint root dir

and then

node-gyp build..\bigint.cc(579): error C3861: 'time': identifier not found 

..\bigint.cc(579): error C3861: 'clock': identifier not found

This is the line number 579

unsigned long seed = rand() + (time(NULL) * 1000) + clock();

and this are the includes on top of bigint.cc

#include <stdint.h>

#include <cstdio>

#include <cstdlib>

#include <cstring>

#include <iostream>

#include <v8.h>

#include <node.h>

#include <gmp.h>

#include <map>

#include <utility>

using namespace v8;

using namespace node;

using namespace std;

Any idea why the error is being caused?

[Bert Belder]

Include <time.h> and <stdlib.h>