[DSP] Rust + QML + macOS
by Paweł Świątkowski
My project came to a bit of a stall lately, but today I decided to try to push it through a bit. Unfortunately, before I was doing most of development on my Linux-powered laptop, but this time I only had a Mac available. But what’s the difference?, I thought, after all both are UNIX-based and Mac aficionados can’t stop talking about how everything Just Works™ there…
Almost an hour later, I finally managed to run my example Rust + QML app I wrote about recently. I was close to giving up, because I easily got it to compile, but the linker would not work, claiming that it can’t find Qt libraries. Indeed, Qt installation from homebrew is a bit weird and even warned me about that. Fortunately I found an issue (quite recent one) explaining how to go.
To get through it, you need to use a mechanism in Cargo that lets you set up environment before running actual compilation. So, you ned to create a
build.rs file in the root of your project with following content:
Cargo.toml you add:
Et Voila! It works. However I’m a bit puzzled now - should I check those files into version control? Wouldn’t they break builds on other platforms? I was experimenting with other approaches, as apparently build script might be overriden in config, however I didn’t get it to work. Maybe some day…