1528150 - Build gn from https://gn.googlesource.com/gn/

Status: RESOLVED FIXED

(Firefox Build System :: Toolchains, enhancement)

Description

[Mike Hommey [:glandium]]

gn has moved to a standalone repository, which would save some serious time building gn, since it's currently dominated by cloning 3 git repositories, one of which is absolutely massive.

Comment 1

[Mike Hommey [:glandium]]

Attachment: Bug 1528150 - Build gn from https://gn.googlesource.com/gn/.

Make some adjustments to make the build work:

• On Linux, a newer GCC is needed, and -lrt is missing for
  clock_gettime.
• On Mac, ninja expect AR be accept ar arguments, which clang doesn't,
  so use llvm-ar.
• On Windows, remove the /WX flag that upstream sets (warnings as
  errors) because there are warnings in the code, and remove the
  explicit /MACHINE:x64 linker flag because we're building for x86.
  (we could build for x64, but I'd rather leave that to a followup)

Comment 2

[Mike Hommey [:glandium]]

With this, bug 1528155 and bug 1527798, gn tasks on all platforms (!) finish in 3 minutes, instead of 20 for Linux and Mac and > 30 for Windows.

Comment 3

[(Away)]

(In reply to Mike Hommey [:glandium] from comment #0)

gn has moved to a standalone repository, which would save some serious time
building gn, since it's currently dominated by cloning 3 git repositories,
one of which is absolutely massive.

Not to mention that the revision we build is so old that it can't be used for LLVM's gn build. Thanks for doing this.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/0605b508a2c6
Build gn from https://gn.googlesource.com/gn/. r=froydnj

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/e7698adc8e90
Build gn from https://gn.googlesource.com/gn/. r=froydnj

Comment 6

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/mozilla-central/rev/e7698adc8e90