Somehow fix the workaround for the fact that POLLRDHUP is not evailable everywhere.
Somehow fix the workaround for the fact that POLLRDHUP is not evailable everywhere.

deadtrickster/iolib,tiago4orion/iolib,sionescu/iolib,tiago4orion/iolib,lispnik/iolib,dkochmanski/iolib,shamazmazum/iolib,lispnik/iolib,attila-lendvai/iolib,tiago4orion/iolib,lispnik/iolib,attila-lendvai/iolib,shamazmazum/iolib,sionescu/iolib,dkochmanski/iolib,vsedach/iolib-simple-mux,shamazmazum/iolib,sionescu/iolib,deadtrickster/iolib,attila-lendvai/iolib,dkochmanski/iolib,vsedach/iolib-simple-mux,deadtrickster/iolib