PSI_CHECK_SYS_SELECT() { AC_CHECK_HEADERS(sys/select.h) PSI_STRUCT(fd_set, []) PSI_CONST(FD_SETSIZE, int) PSI_MACRO(void FD_CLEAR, [(int fd, fd_set *s)]) PSI_MACRO(void FD_COPY, [(fd_set *s1, fd_set *s2)]) PSI_MACRO(void FD_CLR, [(int fd, fd_set *s)]) PSI_MACRO(void FD_SET, [(int fd, fd_set *s)]) PSI_MACRO(int FD_ISSET, [(int fd, fd_set *s)]) PSI_MACRO(void FD_ZERO, [(fd_set *s)]) PSI_DECL(int select, [(int nfds, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct timeval *timeout)]) dnl PSI_DECL(int pselect, [(int nfds, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct timeval *timeout, sigset_t *sigmask)]) }