Add bitflags macro

Cargo.toml

@@ -9,5 +9,9 @@ crate-type = ["staticlib"]
 [dependencies]
 rlibc = "*"
 
+[dependencies.bitflags]
+git = "https://github.com/phil-opp/bitflags.git"
+branch = "no_std"
+
 [dependencies.multiboot2]
 path = "../multiboot2"

src/lib.rs

@@ -18,6 +18,8 @@
 
 extern crate rlibc;
 extern crate multiboot2;
+#[macro_use]
+extern crate bitflags;
 
 use core::fmt::Write;