something wrong when I use tesseract api ?

[lxj0276]

Now I build this project (pc environment :win7 64bit vs2015)
and it generates some lib file.

**giflib.lib
libjpeg.lib
liblept.lib
libpng.lib
libtesseract.lib
libtiff.lib
libwebp.lib**

I use this code to test the api,
`#include "stdafx.h"

include"strngs.h"

include"baseapi.h"

include

using namespace std;

int main(void)
{
char *str = "e:\1_1.png";
tesseract::TessBaseAPI api;
api.Init(NULL, "eng", tesseract::OEM_DEFAULT);
STRING text_out;
cout << text_out.string();
}`
It shows "LINK : fatal error LNK1104: can not open “giflib.lib”"
can you tell me what's wrong with my project?