$OpenBSD: patch-scripts_checks_m4,v 1.1 2008/11/25 16:21:28 naddy Exp $
--- scripts/checks.m4.orig	Tue Oct  7 14:48:07 2008
+++ scripts/checks.m4	Sun Nov 23 21:04:40 2008
@@ -94,14 +94,27 @@ AC_DEFUN([TORRENT_CHECK_KQUEUE], [
 ])
 
 AC_DEFUN([TORRENT_CHECK_KQUEUE_SOCKET_ONLY], [
+  save_LIBS=$LIBS
+  AC_CHECK_FUNCS(posix_openpt, , [
+    AC_SEARCH_LIBS(openpty, util,
+      AC_DEFINE(HAVE_OPENPTY, 1,
+        [Define to 1 if you have the `openpty' function.])
+    )
+  ])
+
   AC_MSG_CHECKING(whether kqueue supports pipes and ptys)
 
   AC_RUN_IFELSE(
-    [[#include <fcntl.h>
+    [[#include "confdefs.h"
+      #include <fcntl.h>
       #include <stdlib.h>
       #include <unistd.h>
       #include <sys/event.h>
       #include <sys/time.h>
+      #if HAVE_OPENPTY
+      #include <termios.h>
+      #include <util.h>
+      #endif
       int main() {
         struct kevent ev[2], ev_out[2];
         struct timespec ts = { 0, 0 };
@@ -110,8 +123,14 @@ AC_DEFUN([TORRENT_CHECK_KQUEUE_SOCKET_ONLY], [
         if (pipe(pfd) == -1) return 1;
         if (fcntl(pfd[1], F_SETFL, O_NONBLOCK) == -1) return 2;
         while ((n = write(pfd[1], buffer, sizeof(buffer))) == sizeof(buffer));
+        #if HAVE_POSIX_OPENPT
         if ((pty[0]=posix_openpt(O_RDWR | O_NOCTTY)) == -1) return 3;
         if ((pty[1]=grantpt(pty[0])) == -1) return 4;
+        #elif HAVE_OPENPTY
+        if (openpty(&pty[0], &pty[1], NULL, NULL, NULL) == -1) return 3;
+        #else
+        return 3;
+        #endif
         EV_SET(ev+0, pfd[1], EVFILT_WRITE, EV_ADD | EV_ENABLE, 0, 0, NULL);
         EV_SET(ev+1, pty[1], EVFILT_READ, EV_ADD | EV_ENABLE, 0, 0, NULL);
         if ((kfd = kqueue()) == -1) return 5;
@@ -129,6 +148,7 @@ AC_DEFUN([TORRENT_CHECK_KQUEUE_SOCKET_ONLY], [
       AC_DEFINE(KQUEUE_SOCKET_ONLY, 1, kqueue only supports sockets.)
       AC_MSG_RESULT(no)
     ])
+    LIBS=$save_LIBS
 ])
 
 AC_DEFUN([TORRENT_WITH_KQUEUE], [