bmusbdep = dependency('bmusb', required: not embedded_bmusb)
dldep = cxx.find_library('dl')
epoxydep = dependency('epoxy')
-epoxydep = dependency('epoxy')
libavcodecdep = dependency('libavcodec')
libavformatdep = dependency('libavformat')
libavresampledep = dependency('libavresample')