[linux-audio-user] error compiling an ALSA demo program

[Daniel]

error compiling an ALSA demo program : invalid conversion from void* to 
pollfd* ?
I see that pollfd is a struct ufds pointer.
I did not write the code so I'm somewhat lost, could it be a compiler 
(switch) setting problem or something else?
The conversion is not valid C, as far as i know, but then why would it be in 
this demo like that?
Thanks,
Daniel.