style: Add macros to enable/disable client building features

client/proxy/ProxyManager.cpp

@@ -8,6 +8,8 @@
 #include "stdio.h"
 #include <process.h>
 
+#if ENABLE_PROXY
+
 //////////////////////////////////////////////////////////////////////
 // Construction/Destruction
 //////////////////////////////////////////////////////////////////////
@@ -290,3 +292,4 @@ SOCKET* CProxyManager::GetSocket(DWORD index, BOOL del)
 
     return s;
 }
+#endif