Autocad can't open dwg written by libredwg

[lhbose]

#The question is that i can't open dwg file writen by libredwg with any version of autocad,can anyone help me?
#Here is my mini-testing code:

#include "dwg.h"
#include "dwg_api.h"

int main(int argc,char* argv[])
{
int error;
const char* szFilePath = "/root/libredwg_test/test.dwg";

Dwg_Data* pDwgData = dwg_new_Document(R_2000,0,2);

error = dwg_write_file(szFilePath, pDwgData);

dwg_free(pDwgData);

return 0;

}

[michal-josef-spacek]

I could probably test and fix this issue.
The issue is because some crucial default bad value in header/aux_header/?.

I think the same issue as #1058