If you now see Mac compilation errors about "stdlib.h not found", try
running `xcode-select --install`.
Part of the Stylo build process (rust-bindgen) can get confused about
which clang header #include paths it should use. xcode-select can fix
this. Bug 1366564 is a feature request for mach bootstrap to run
xcode-select automatically.
On 2017-07-28 1:04 AM, Chris Peterson wrote:
Stylo support (pref'd off) has been built in automation builds for a
couple weeks. Ralph Giles just landed bug 1384258 to also build Stylo
support (pref'd off) in local developer builds, too. You should rerun
`mach bootstrap` to make sure you have the latest versions of the Stylo
and Rust dependencies.
Stylo currently builds on Windows, Mac, and Linux64. Linux32 is
temporarily blocked by some build issues. Android support will follow
after Firefox 57. Stylo adds a lot of new Rust code, which slows down
Firefox build times. The Firefox build peers and Rust developers are
working on a couple different methods to improve Rust build times.
If you don't work directly on Rust code locally, the biggest speedup
available is probably sccache, a drop-in replacement for ccache that
also supports Rust. Ted shared instructions for installing sccache on
dev-platform earlier this week [1]. IIUC, sccache works best on Linux.
There are currently some sccache bugs on Mac [2] and Windows (bug 1318370).
To enable Stylo for testing, set the "layout.css.servo.enabled" pref =
true and report problems in the #servo IRC channel.
[1]
https://groups.google.com/d/msg/mozilla.dev.platform/5srcnP-Wj4E/Uf_2gw2NAAAJ
[2] https://github.com/mozilla/sccache/issues/163
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