fix build on fedora 9

git-svn-id: file:///svn/toku/tokudb@8872 c7de825b-a66e-492c-adef-691d508d4ae1

cxx/tests/test1e.cpp

 #include <db_cxx.h>
 #include <errno.h>
 #include <assert.h>
-
+#include <stdlib.h>
 
 #include <iostream>
 using namespace std;