AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h wchar.h)
+AC_CHECK_DECLS(h_errno,,,[#include <netdb.h>])
+
dnl
dnl Check sizes of integer types. These are used to find n-bit
dnl integral types on older systems that fail to provide intN_t and