WSAPoll & MinGW

For some reason if you try to use WSAPoll, you’ll get this fine error on linking:

poll.c:(.text+0x26): undefined reference to `WSAPoll’

Yeah.

Turns out that it’s basically missing from the includes.  Thanks to this hint, just simply add this into your source/header after pulling in winsock2.h and it’ll link.

typedef struct pollfd {
SOCKET fd;
SHORT events;
SHORT revents;
} WSAPOLLFD, *PWSAPOLLFD, FAR *LPWSAPOLLFD;
WINSOCK_API_LINKAGE int WSAAPI WSAPoll(LPWSAPOLLFD fdArray, ULONG fds, INT timeout);

And now you can happily compile and link.

This entry was posted in mingw, Win32 by neozeed. Bookmark the permalink.
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About neozeed

What is there to tell? I’ve loved UNIX like things since I was first exposed to QNX in highschool (we had the Unisys ICONS!), and spent the better time of my teenage years trying to get my own UNIX… I should have bought Coherent in retrospect.. Anyways latched onto Linux in 1992, and then got some old BSD admin books and have been hooked on the VAX BSD & other big/ancient things since…!

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