issues with compiling

[SkySpider413]

I'm trying to setup atom for c++ 11 compiling but I can't compile even hello world because of this error:

from c:\mingw\lib\gcc\mingw32\6.3.0\include\c++\mingw32\bits\stdc++.h:46, 
from F:\atomic++\helloworld.cpp:1: 
c:\mingw\include\stdio.h:788:34: error: 'off64_t' does not name a type 
typedef union { int64 value; off64_t __offset; } fpos_t; 
^~~~~ 

and to be specific I get it also when I try to compile using cmd command. I add a few screens with info that might be helpful and to show what I have made so far:

maybe someone can help me with this or give me link to fix which I have missed