Disable libev monotonic and realtime clocks
Disable libev monotonic and realtime clocks

These are present in POSIX OS, not Windows, so we avoid enabling
such functionality.

tpetchel/nio4r,marshall-lee/nio4r,celluloid/nio4r,celluloid/nio4r,marshall-lee/nio4r,celluloid/nio4r,tpetchel/nio4r,marshall-lee/nio4r,tpetchel/nio4r