diff --git a/realloc.c b/realloc.c
new file mode 100644
index 0000000000000000000000000000000000000000..421abe887ef53df9f6df8562d798b7ddb747e055
--- /dev/null
+++ b/realloc.c
@@ -0,0 +1,49 @@
+/* realloc.c
+ *
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2002 Niels M�ller
+ *  
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "realloc.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+void *
+nettle_realloc(void *ctx UNUSED, void *p, unsigned length)
+{
+  return realloc(p, length);
+}
+
+void *
+nettle_xrealloc(void *ctx UNUSED, void *p, unsigned length)
+{
+  void *n = realloc(p, length);
+  if (n)
+    return n;
+
+  fprintf(stderr, "Virtual memory exhausted.\n");
+  abort();    
+}