AC_CHECK_HEADERS(sys/types.h sys/stat.h)
dnl Now check for the others.
AC_CHECK_HEADERS(string.h strings.h limits.h unistd.h sys/time.h)
AC_CHECK_HEADERS(sys/types.h sys/stat.h)
dnl Now check for the others.
AC_CHECK_HEADERS(string.h strings.h limits.h unistd.h sys/time.h)