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Additional notes to link-args

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Aidan Hobson Sayers 2015-06-15 18:58:28 +01:00
parent a8a49fbfc9
commit b6a0d9e178
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6
src/doc/trpl/advanced-linking.md
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@ -22,10 +22,12 @@ extern {}
Note that this feature is currently hidden behind the `feature(link_args)` gate
because this is not a sanctioned way of performing linking. Right now `rustc`
shells out to the system linker, so it makes sense to provide extra command line
shells out to the system linker (`gcc` on most systems, `link.exe` on MSVC),
so it makes sense to provide extra command line
arguments, but this will not always be the case. In the future `rustc` may use
LLVM directly to link native libraries, in which case `link_args` will have no
meaning.
meaning. You can achieve the same effect as the `link-args` attribute with the
`-C link-args` argument to `rustc`.
It is highly recommended to *not* use this attribute, and rather use the more
formal `#[link(...)]` attribute on `extern` blocks instead.