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Added linker_arg(s) Linker trait methods for link-arg to be prefixed "-Wl," for cc-like linker args and not verbatim https://github.com/rust-lang/rust/issues/99427#issuecomment-1234443468 > here's one possible improvement to -l link-arg making it more portable between linkers and useful - befriending it with the verbatim modifier (https://github.com/rust-lang/rust/issues/99425). > > -l link-arg:-verbatim=-foo would add -Wl,-foo (or equivalent) when C compiler is used as a linker, and just -foo when bare linker is used. > -l link-arg:+verbatim=-bar on the other hand would always pass just -bar.
Please read the rustc-dev-guide chapter on Backend Agnostic Codegen.