problem happend when install in Mac

[yinnxinn]

Mac is not supported????

[xiongyihui]

Not tested. do not have a Mac

[allen0125]

prctl.h does not exist on Mac OS X, only on Linux.

[zhouzaiqing]

define_macros = [
('WEBRTC_MAC', None),
('WEBRTC_POSIX', None),
('WEBRTC_NS_FLOAT', None),
('WEBRTC_AUDIO_PROCESSING_ONLY_BUILD', None),
('WEBRTC_ARCH_ARM64', None),
('WEBRTC_CLOCK_TYPE_REALTIME', None),
]