Fix GN bootstrap to build with latest libc++abi changes

BUG=1180836
R=thakis

Change-Id: Id740dbbfa5db4b77950225f854dcf6c3e440886d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2740059
Auto-Submit: Thomas Anderson <thomasanderson@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#860311}
GitOrigin-RevId: 2c2542222912cfa26a8124034f0e01593c5e32c8
1 file changed
tree: fd54765e91d362c4581970a41ed6403b4518f080
  1. bootstrap/
  2. tutorial/
  3. README.md
  4. roll_gn.py
README.md

GN now lives at https://gn.googlesource.com/.

To roll the latest version of GN into Chromium:

  1. Create a new Git branch.
  2. Run python tools/gn/roll_gn.py; this will modify //DEPS and //buildtools/DEPS to point to the most recent revision of GN and create a commit with a list of the changes included in the roll.
  3. Run git-cl upload to upload the commit as a change for review.

If you don't want to roll to the latest version, you can specify the SHA-1 to roll to use as an argument to the script, and it will be used instead.