tree 006556a7defe5fe3ed9b131948f7473e2f5f61d4
parent c5a0ec650f2195e4cf49880b3f4eb3ca9e01a90e
author Petr Hosek <phosek@google.com> 1578084873 -0800
committer Commit Bot <commit-bot@chromium.org> 1578452815 +0000

Provide a way to pass extern Rust library

We can use `libs` and `lib_dirs` to pass external libraries to C/C++
targets (and even C/C++ dependencies of Rust targets), but the same
mechanism cannot be used to pass external Rust libraries to Rust
targets because --externs name=path/to/lib.rlib needs both a name
and a path. This change implements `externs` which behaves similarly
to `libs` but takes a scope instead and allows passing name/path pairs
which are passed to the Rust compiler.

Change-Id: Iaee0bf462dcbaecc0171cd124a23492451ddf6f1
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/6960
Commit-Queue: Petr Hosek <phosek@google.com>
Reviewed-by: Brett Wilson <brettw@chromium.org>