Adding <cstdlib> include for standards compliance.

deanberris · deanberris · commit f90ab0597fcc · 2009-12-15T08:34:55.000+08:00
diff --git a/libs/network/test/hello_world.cpp b/libs/network/test/hello_world.cpp
@@ -5,6 +5,7 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
+#include <cstdlib>
 #include <boost/network/protocol/http/server.hpp>
 #include <boost/assign/list_of.hpp>
 #include <boost/lexical_cast.hpp>
