libopus_sys 0.4.0

FFI-Binding to Opus, dynamically or statically linked for Windows and UNIX.
Documentation
tests = [
  'test_unit_types',
  'test_unit_mathops',
  'test_unit_entropy',
  'test_unit_laplace',
  'test_unit_dft',
  'test_unit_mdct',
  'test_unit_rotation',
  'test_unit_cwrs32',
]

foreach test_name : tests
  exe = executable(test_name, '@0@.c'.format(test_name),
                   include_directories : opus_includes,
                   link_with : [celt_lib, celt_static_libs],
                   dependencies : libm,
                   install : false)
  test(test_name, exe)
endforeach