Fix missing include for non-Mac

diff --git a/simgear/io/HTTPClient.hxx b/simgear/io/HTTPClient.hxx
index 530552cdf4f0ee9549dae761e937b880abf4da9a..55e0e27562b882031e0711a6c21294acedbcaf82 100644 (file)
--- a/simgear/io/HTTPClient.hxx
+++ b/simgear/io/HTTPClient.hxx
@@ -24,6 +24,8 @@
 #ifndef SG_HTTP_CLIENT_HXX
 #define SG_HTTP_CLIENT_HXX
 
+#include <memory> // for std::auto_ptr
+
 #include <simgear/io/HTTPRequest.hxx>
 
 namespace simgear