Add link to issue

Signed-off-by: Joe Rozner <[email protected]>

Author: jrozner

cryptoki-sys/build.rs

@@ -105,6 +105,7 @@ mod generate {
             .derive_default(true)
             .parse_callbacks(Box::new(CargoCallbacks))
             // Support function like macros
+            // https://github.com/parallaxsecond/rust-cryptoki/issues/240
             .clang_macro_fallback();
 
         let bindings = builder.generate().expect("Unable to generate bindings");