I've been doing some work on gfx and surfman lately which, due to the nature of providing cross-platform APIs with platform specific backends, can have lots of #[cfg] checks. You would wish that these could always be simple and apparent such as #[cfg(windows)] or #[cfg(feature = "x11")], but often t…

Thanks so much to all of you here, @sfackler , @Yandros , and @ratmice . With pieces of all of your input I was finally able to finish a cfg_aliases! macro_rules! macro that accomplishes what I needed! https://crates.io/crates/cfg_aliases After @ratmice brought up the target_cfg! macro from tectonic …

Any Such Thing as `#[cfg]` Aliases?

sfackler March 29, 2020, 2:23am 2

You can make a build script that emits should_have_x11 cfgs in the right situations: Build Scripts - The Cargo Book

4 Likes

Topic		Replies	Views
`cfg_aliases`: A New Crate For Creating #[cfg] Aliases announcements	2	581	July 7, 2020
Compile-time checking that all variants of a cfg() macro are valid	4	671	April 28, 2022
Checking sorting of #[cfg(target_os =	3	621	January 12, 2023
Target.'cfg(target_os="android") or IOS doesn't work help	9	3726	August 1, 2020
A crate to parametrize compile-time conditionals? help	6	482	August 1, 2022

Any Such Thing as `#[cfg]` Aliases?

Related topics