1384231 - |mach bootstrap| does not install appropriate rust target for cross compiles

Status: RESOLVED FIXED

(Firefox Build System :: Bootstrap Configuration, enhancement)

Description

[Nick Alexander :nalexander [he/him]]

Right now, |mach bootstrap| installs the Rust target that corresponds to the build machine's platform (and in the case of Win64, also installs the Win32 target).

This isn't correct for mobile/android, and it won't be correct for folks targeting OS X from Linux or targeting Windows from WSL.

This ticket tracks separating the rustup platform from the rust target, addressing mobile/android in the short-term and setting the pattern for Windows from WSL.

Comment 1

[Michael Comella (:mcomella) [NI reported issues only: ex-Mozilla]]

Is there a work-around? I just hit this when trying to build non-artifact builds.

Comment 2

[Michael Comella (:mcomella) [NI reported issues only: ex-Mozilla]]

A workaround I used for macOS:

brew install rustup-init # The rust package must not be installed
rustup-init # I think default args should work
rustup target add armv7-linux-androideabi # Adds cross-compile target
mach bootstrap # Rerun to ensure all deps are installed
mach build # yay!

Comment 3

[Nick Alexander :nalexander [he/him]]

See also https://bugzilla.mozilla.org/show_bug.cgi?id=1326393.

Comment 4

[Nick Alexander :nalexander [he/him]]

This was addressed by my mach bootstrap Android rehabilitation in Bug 1477487.