diff --git a/src/common/init.cpp b/src/common/init.cpp
index 14d6056929..58e2b591a2 100644
--- a/src/common/init.cpp
+++ b/src/common/init.cpp
@@ -111,6 +111,15 @@ public:
     ~wxCleanupOnExit() { wxEntryCleanup(); }
 };
 
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+// suppress warnings about unused variables
+static inline void Use(void *) { }
+
+#define WX_SUPPRESS_UNUSED_WARN(x) Use(&x)
+
 // ----------------------------------------------------------------------------
 // initialization data
 // ----------------------------------------------------------------------------
@@ -380,6 +389,8 @@ int wxEntryReal(int& argc, wxChar **argv)
     // below returns or throws
     wxCleanupOnExit cleanupOnExit;
 
+    WX_SUPPRESS_UNUSED_WARN(cleanupOnExit);
+
     // app initialization
     if ( !wxTheApp->OnInit() )
     {