+ EV_SELECT_USE_FD_SET
+
+ If defined to 1, then the select backend will use the system fd_set
+ structure. This is useful if libev doesn't compile due to a missing
+ NFDBITS or fd_mask definition or it misguesses the bitset layout on
+ exotic systems. This usually limits the range of file descriptors
+ to some low limit such as 1024 or might have other limitations
+ (winsocket only allows 64 sockets). The FD_SETSIZE macro, set
+ before compilation, might influence the size of the fd_set used.
+
+ EV_SELECT_IS_WINSOCKET