--- /dev/null
+The fourth patch enables the serial device under Solaris and disables
+tty setup at the same time. Tty setup is a pain when you want to
+connect a serial port to stdout and it doesn't work under Solaris
+anyway. This patch is useful everywhere with `pintos', but may not be
+wanted elsewhere.
+
+diff -urp bochs-2.1.1-upstream/iodev/serial.cc bochs-2.1.1/iodev/serial.cc
+--- tmp/bochs-2.1.1/iodev/serial.cc 2004-02-11 14:28:54.000000000 -0800
++++ bochs-2.1.1/iodev/serial.cc 2005-06-01 20:26:01.000000000 -0700
+@@ -118,10 +118,11 @@ bx_serial_c::init(void)
+
+ #ifdef SERIAL_ENABLE
+ if (strlen(bx_options.com[0].Odev->getptr ()) > 0) {
+- tty_id = open(bx_options.com[0].Odev->getptr (), O_RDWR|O_NONBLOCK,600);
++ tty_id = open(bx_options.com[0].Odev->getptr (), O_RDWR,600);
+ if (tty_id < 0)
+ BX_PANIC(("open of %s (%s) failed\n",
+ "com1", bx_options.com[0].Odev->getptr ()));
++#if 0
+ BX_DEBUG(("tty_id: %d",tty_id));
+ tcgetattr(tty_id, &term_orig);
+ bcopy((caddr_t) &term_orig, (caddr_t) &term_new, sizeof(struct termios));
+@@ -145,6 +148,7 @@ bx_serial_c::init(void)
+ term_new.c_cc[VTIME] = 0;
+ //term_new.c_iflag |= IXOFF;
+ tcsetattr(tty_id, TCSAFLUSH, &term_new);
++#endif
+ }
+ #endif /* def SERIAL_ENABLE */
+ // nothing for now
+@@ -955,7 +968,7 @@ bx_serial_c::rx_timer(void)
+ }
+ if (rdy) {
+ chbuf = data;
+-#elif defined(SERIAL_ENABLE)
++#elif 0 && defined(SERIAL_ENABLE)
+ if ((tty_id >= 0) && (select(tty_id + 1, &fds, NULL, NULL, &tval) == 1)) {
+ (void) read(tty_id, &chbuf, 1);
+ BX_DEBUG(("read: '%c'",chbuf));