linux headless trybots keep failing to run gn

build/linux/sysroot_scripts/install-sysroot.py

 #!/usr/bin/env python
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Install Debian sysroots for building chromium.
 """
 
 # The sysroot is needed to ensure that binaries will run on Debian Wheezy,
 # the oldest supported linux distribution. For ARM64 linux, we have Debian
@@ skipping 121 matching lines @@
   # since this is currently and android-only architecture.
   target_arch = DetectTargetArch()
   if target_arch and target_arch not in (host_arch, 'i386'):
     InstallDefaultSysrootForArch(target_arch)
 
   # Desktop Linux ozone builds require libxkbcommon* which is not
   # available in Wheezy.
   # TODO(thomasanderson): Remove this once the Jessie sysroot is used
   # by default.
   gyp_defines = gyp_chromium.GetGypVars(gyp_chromium.GetSupplementalFiles())
-  if gyp_defines.get('use_ozone') == '1':
+  if gyp_defines.get('use_xkbcommon') == '1':

[Tom (Use chromium acct), 2017/02/03 00:36:12]

This will not have the desired effect.  use_xkbcommon is a gn arg, not a GYP
define.

You can just leave this as use_ozone.  There will be some false positives (ie,
we'll download the Jessie sysroot on ozone configs, but not actually use it),
but this is OK for now

[tonikitoo, 2017/02/03 04:29:27]

Done.

     InstallSysroot('Jessie', 'amd64')
 
 
 def main(args):
   parser = optparse.OptionParser('usage: %prog [OPTIONS]', description=__doc__)
   parser.add_option('--running-as-hook', action='store_true',
                     default=False, help='Used when running from gclient hooks.'
                                         ' Installs default sysroot images.')
   parser.add_option('--arch', type='choice', choices=VALID_ARCHS,
                     help='Sysroot architecture: %s' % ', '.join(VALID_ARCHS))
@@ skipping 85 matching lines @@
   with open(stamp, 'w') as s:
     s.write(url)
 
 
 if __name__ == '__main__':
   try:
     sys.exit(main(sys.argv[1:]))
   except Error as e:
     sys.stderr.write(str(e) + '\n')
     sys.exit(1)