AC_CHECK_MEMBERS([struct termios2.c_ispeed, struct termios2.c_ospeed],
[AC_DEFINE(HAVE_TERMIOS2_SPEED, 1)], [], [[#include <linux/termios.h>]])
AC_CHECK_MEMBERS([struct termios2.c_ispeed, struct termios2.c_ospeed],
[AC_DEFINE(HAVE_TERMIOS2_SPEED, 1)], [], [[#include <linux/termios.h>]])
# Check for serial_struct.
AC_CHECK_TYPE([struct serial_struct], [AC_DEFINE(HAVE_SERIAL_STRUCT, 1)],
[], [[#include <linux/serial.h>]])
# Check for serial_struct.
AC_CHECK_TYPE([struct serial_struct], [AC_DEFINE(HAVE_SERIAL_STRUCT, 1)],
[], [[#include <linux/serial.h>]])