I'd suggest you ask on https://users.rust-lang.org/ since this mailing list is "closed".
On Wednesday, 20 December 2017 16:18:08 GMT google wrote: > Hi folks, > > > I'm currently trying to how conditional compiling in rust > actually works. I was under the impression that > > #[cfg(feature = "foo")] > > behaves pretty much like an #ifdef, but for the subsequent > syntactical block, so instead of > > #ifdef ENABLE_FOO > fn ... { > } > #endif > > you istead write > > #[cfg(feature = "foo")] > fn ... { > } > > BUT: there're lots of cases, where this doesn't seem to work, eg. > with if statements. An 'if cfg!(feature = "foo")' doesn't work for > me, as lots of types in the disabled code pathes won't exist at all. > Similar w/ 'use' statements, parameter lists, match statements, ... > > background: I'm currently trying to trim down Servo, as it doesn't > compile on 32bit system (don't have an 64bit environment right now) > and I'd like to get rid of lots of things (eg. bluetooth, gamepad, etc) > anyways. > > > --mtx > _______________________________________________ > Rust-dev mailing list > Rust-dev@mozilla.org > https://mail.mozilla.org/listinfo/rust-dev _______________________________________________ Rust-dev mailing list Rust-dev@mozilla.org https://mail.mozilla.org/listinfo/rust-dev