--- /dev/null
+#ifndef _IPXE_MEMTOP_UMALLOC_H
+#define _IPXE_MEMTOP_UMALLOC_H
+
+/** @file
+ *
+ * External memory allocation
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#ifdef UMALLOC_MEMTOP
+#define UMALLOC_PREFIX_memtop
+#else
+#define UMALLOC_PREFIX_memtop __memtop_
+#endif
+
+#endif /* _IPXE_MEMTOP_UMALLOC_H */