Bug 1316477 - Mention adding extern crate references. r=froydnj

MozReview-Commit-ID: G1DxiQ410W1
iaxat · Nov 10, 2016 · 36a876f · 36a876f
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commit 36a876f
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diff --git a/build/docs/rust.rst b/build/docs/rust.rst
@@ -23,6 +23,7 @@ Linking Rust Crates into libxul
 
 Rust crates that you want to link into libxul should be listed in the
 ``dependencies`` section of `toolkit/library/rust/shared/Cargo.toml <https://dxr.mozilla.org/mozilla-central/source/toolkit/library/rust/shared/Cargo.toml>`_.
+You'll also need to add an ``extern crate`` reference to `toolkit/library/rust/shared/lib.rs <https://dxr.mozilla.org/mozilla-central/source/toolkit/library/rust/shared/lib.rs>`_.
 This ensures that the Rust code will be linked properly into libxul as well
 as the copy of libxul used for gtests.