AC_HAVE_LIBRARY(-lm)
AC_HAVE_FUNCS(gettimeofday gethostname dup2 rename closedir mkdir rmdir \
random lrand48 bcopy bcmp logb frexp fmod drem ftime res_init setsid \
-strerror fpathconf select mktime eaccess)
+strerror fpathconf select mktime eaccess getpagesize)
ok_so_far=true
AC_FUNC_CHECK(socket, , ok_so_far=)