Add libevent port

build_tools/find_effected_packages.py

 #!/usr/bin/env python
 # Copyright 2015 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 """Find which packages are effected by a given change.
 
 Accepts a list of changed files and outputs a list of effected
 packages.  Outputs 'all' if any shared/non-package-specific
 file if changed."""
 
@@ skipping 27 matching lines @@
       package_filter)
   print '\n'.join(effected_packages)
   return 0
 
 # Normally when changins files outside of the 'ports' directory will
 # trigger the rebuilding of all packages.  However certainly files are
 # known to not effect the building on packages and those are listed here.
 IGNORE_FILES = [
     'build_tools/find_effected_packages.py',
     'build_tools/partition*.txt',
+    'AUTHORS',
     '*/test_*.py',
 ]
 
 def find_effected_packages(files, include_deps, package_filter):
   packages = []
   to_resolve = []
 
   def AddPackage(package):
     if package_filter and package.NAME not in package_filter:
       naclports.LogVerbose('Filtered out package: %s' % package.NAME)
@@ skipping 27 matching lines @@
     packages = [p for p in packages if p in package_filter]
   return packages
 
 
 if __name__ == '__main__':
   try:
     sys.exit(main(sys.argv[1:]))
   except naclports.Error as e:
     sys.stderr.write('%s\n' % e)
     sys.exit(-1)