AC_TYPE_PID_T
AC_C_BIGENDIAN
-# Check size of long.
+dnl
+dnl Check integral type sizes.
+dnl
+AC_CHECK_SIZEOF(short)
+AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
+AC_CHECK_TYPES(int32_t)
+AC_CHECK_TYPES(u_int32_t)
dnl
dnl Checks for headers