[AMQCPP-40] - fix for redefinition of HAVE_WINSOCK2_H warning in msvc
[AMQCPP-40] - fix for redefinition of HAVE_WINSOCK2_H warning in msvc

git-svn-id: 9564524e887d65cbfe77c4fd75612775afad9401@498776 13f79535-47bb-0310-9956-ffa450edef68

apache/activemq-cpp,apache/activemq-cpp,apache/activemq-cpp,apache/activemq-cpp