if env['platform'] not in ('cygwin', 'darwin', 'freebsd', 'haiku', 'windows'):
SConscript('glx/SConscript')
if env['platform'] not in ['darwin', 'haiku', 'sunos']:
if env['platform'] not in ('cygwin', 'darwin', 'freebsd', 'haiku', 'windows'):
SConscript('glx/SConscript')
if env['platform'] not in ['darwin', 'haiku', 'sunos']: