@@ -360,10 +360,13 @@
 		size_max="(~(size_t)0)"
 	])
 	AC_DEFINE_UNQUOTED(SIZE_MAX, $size_max, [Maximum value for size_t])
 ])
 
+AC_CHECK_TYPE(max_align_t,
+	[AC_DEFINE(OF_HAVE_MAX_ALIGN_T, 1, [Whether we have max_align_t])])
+
 AC_CHECK_SIZEOF(float)
 AC_CHECK_SIZEOF(double)
 AS_IF([test x"$ac_cv_sizeof_float" != x"4" -o x"$ac_cv_sizeof_double" != x"8"],
 	[AC_MSG_ERROR(
 		[Floating point implementation does not conform to IEEE 754!])])