- pulling in std::back_insterter under MSVC

- MSVC needs a return value even with unreachable code

src/KqueueEventPoll.cc

@@ -97,7 +97,7 @@ KqueueEventPoll::KqueueEventPoll()
 KqueueEventPoll::~KqueueEventPoll()
 {
   if (kqfd_ != -1) {
-    int r = close(kqfd_);
+    int r = a2_close(kqfd_);
     int errNum = errno;
     if (r == -1) {
       A2_LOG_ERROR(fmt("Error occurred while closing kqueue file descriptor"

src/ReceiverMSEHandshakeCommand.cc

@@ -32,6 +32,11 @@
  * files in the program, then also delete it here.
  */
 /* copyright --> */
+
+#if defined(_MSC_VER) // for std::back_inserter
+#  include <iterator>
+#endif
+
 #include "ReceiverMSEHandshakeCommand.h"
 #include "PeerReceiveHandshakeCommand.h"
 #include "PeerConnection.h"

src/RpcMethodImpl.h

@@ -41,6 +41,10 @@
 #include <deque>
 #include <algorithm>
 
+#if defined(_MSC_VER) // for std::back_inserter
+#  include <iterator>
+#endif
+
 #include "RpcRequest.h"
 #include "ValueBase.h"
 #include "TorrentAttribute.h"

src/SSHSession.cc

@@ -145,6 +145,7 @@ ssize_t SSHSession::writeData(const void* data, size_t len)
 {
   // net implemented yet
   assert(0);
+  return 0; // MSVC needs a return value even if it's unreached
 }
 
 ssize_t SSHSession::readData(void* data, size_t len)