ardupilot/waf

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#!/usr/bin/python
from __future__ import print_function
import os
import os.path as p
import sys
d = p.dirname(p.realpath(__file__))
try:
os.execv(os.path.join(d, 'modules/waf/waf-light'), sys.argv)
except OSError:
print('Missing waf submodule. Trying to get it')
from subprocess import check_call, CalledProcessError
try:
check_call(['git', 'submodule', 'update', '--init', 'modules/waf'])
except CalledProcessError:
print('Could not update submodule', file=sys.stderr)
sys.exit(1)
print('Submodules OK, try running again')