xlist: added missing include

The xlist header references NULL without including
the header which defines it.

Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Reviewed-by: Josh Durgin <jdurgin@redhat.com>

diff --git a/src/include/xlist.h b/src/include/xlist.h
index 53aa3ab06fc5195dbd76c0d5636619f5f81b6ef1..1cbadc0262e3262393ae076f75b9ae0758df6d80 100644 (file)
--- a/src/include/xlist.h
+++ b/src/include/xlist.h
@@ -16,6 +16,7 @@
 #define CEPH_XLIST_H
 
 #include "include/assert.h"
+#include <cstdlib>
 
 template<typename T>
 class xlist {