diff -up cyrus-sasl-2.1.26/include/sasl.h.size_t cyrus-sasl-2.1.26/include/sasl.h
--- cyrus-sasl-2.1.26/include/sasl.h.size_t	2012-10-12 09:05:48.000000000 -0500
+++ cyrus-sasl-2.1.26/include/sasl.h	2013-01-31 13:21:04.007739327 -0600
@@ -223,6 +223,8 @@ extern "C" {
  * they must be called before all other SASL functions:
  */
 
+#include <sys/types.h>
+
 /* memory allocation functions which may optionally be replaced:
  */
 typedef void *sasl_malloc_t(size_t);