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${ noResults }
meson/test cases/rust/18 proc-macro
Alyssa Ross
ab17bd2393
I noticed when building a project that uses a proc macro that Meson passed -C prefer-dynamic for the executable, and not the proc macro, while cargo passed -C prefer-dynamic for the proc macro, but not for the executable. Meson's behavior broke setting -C panic=abort on the executable. As far as we can tell, because we explicitly pass each library path to rustc, the only thing -C prefer-dynamic affects in Meson is how the standard libraries are linked. Generally, one does not want the standard libraries to be dynamically linked, because if the Rust compiler is ever updated, anything linked against the old standard libraries will likely break, due to the lack of a stable Rust ABI. Therefore, I've reorganised Meson's behavior around the principle that the standard libraries should only be dynamically linked when Rust dynamic linking has already been opted into in some other way. The details of how this manifests are now explained in the documentation. |
1 year ago | |
|---|---|---|
| .. | ||
| meson.build | rust: fix -C prefer-dynamic behavior | 1 year ago |
| proc.rs | Add support for rust proc-macro crates | 3 years ago |
| use.rs | Add support for rust proc-macro crates | 3 years ago |