Support NetBSD platform

[iquiw]

Test result on NetBSD 8 with Rust 1.30.1.

$ cargo test
    Finished dev [unoptimized + debuginfo] target(s) in 0.09s
     Running target/debug/deps/glutin-6ed9fca4d308c846

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

   Doc-tests glutin

running 6 tests
test target/debug/build/glutin-6e1f9d8f4241066e/out/egl_bindings.rs - api::egl::ffi::egl::Egl::load_with (line 375) ...
ignored
test target/debug/build/glutin-6e1f9d8f4241066e/out/glx_bindings.rs - api::glx::ffi::glx::Glx::load_with (line 425) ...
ignored
test target/debug/build/glutin-6e1f9d8f4241066e/out/glx_extra_bindings.rs - api::glx::ffi::glx_extra::Glx::load_with (line 451) ... ignored
test src/lib.rs - GlWindow (line 153) ... ok
test src/lib.rs - Context (line 123) ... ok
test src/lib.rs -  (line 9) ... ok

test result: ok. 3 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out

[francesca64]

Thanks for the PR, looks good! The CI failure isn't your fault, so don't worry about that. However, it would be nice if you could add a CHANGELOG entry.

[iquiw]

Thanks for the review. OK, I will update CHANGELOG.

[iquiw]

Amended the commit to update CHANGELOG.