Add option for link concurrency.
Skia's buildbots, particularly Windows builds with LTO, are held back by the
link pool. We'd like to play around with this number a bit. Any problem
checking an environment variable first before doing the RAM-based calculation?
Testing: ran with and without GYP_LINK_CONCURRENCY=90, looked at build.ninja
Patch from mtklein@chromium.org.
R=scottmg@chromium.org
Review URL: https://codereview.chromium.org/315343003
git-svn-id: http://gyp.googlecode.com/svn/trunk@1930 78cadc50-ecff-11dd-a971-7dbc132099af
1 file changed
