Does not compile on Windows

[RAnders00]

Below is the error I get, using rust distribution nightly-x86_64-pc-windows-msvc (also tried gnu, same error)

error[E0425]: cannot find function `sysconf` in crate `libc`
   --> C:\Users\Ruben Anders\.cargo\registry\src\github.com-1ecc6299db9ec823\sys-info-0.5.10\lib.rs:396:34
    |
396 |             let buf_size = libc::sysconf(libc::_SC_HOST_NAME_MAX) as usize;
    |                                  ^^^^^^^ not found in `libc`

error[E0425]: cannot find value `_SC_HOST_NAME_MAX` in crate `libc`
   --> C:\Users\Ruben Anders\.cargo\registry\src\github.com-1ecc6299db9ec823\sys-info-0.5.10\lib.rs:396:48
    |
396 |             let buf_size = libc::sysconf(libc::_SC_HOST_NAME_MAX) as usize;
    |                                                ^^^^^^^^^^^^^^^^^ not found in `libc`

error[E0425]: cannot find function `gethostname` in crate `libc`
   --> C:\Users\Ruben Anders\.cargo\registry\src\github.com-1ecc6299db9ec823\sys-info-0.5.10\lib.rs:398:22
    |
398 |               if libc::gethostname(buf.as_mut_ptr() as *mut libc::c_char, buf_size) < 0 {
    |                        ^^^^^^^^^^^ help: a function with a similar name exists: `getsockname`
    | 
   ::: C:\Users\Ruben Anders\.cargo\registry\src\github.com-1ecc6299db9ec823\libc-0.2.72\src\windows\mod.rs:556:5
    |
556 | /     pub fn getsockname(
557 | |         s: SOCKET,
558 | |         name: *mut ::sockaddr,
559 | |         nameln: *mut ::c_int,
560 | |     ) -> ::c_int;
    | |_________________- similarly named function `getsockname` defined here

[RonnyChan-okta]

Should be fixed in #18