diff --git a/include/wx/app.h b/include/wx/app.h
index c3b87dd018..f2a254bac0 100644
--- a/include/wx/app.h
+++ b/include/wx/app.h
@@ -648,7 +648,7 @@ protected:
 // ------------------------------------------------------
 
 // Force an exit from main loop
-extern void WXDLLIMPEXP_BASE wxExit();
+WXDLLIMPEXP_BASE void wxExit();
 
 // avoid redeclaring this function here if it had been already declated by
 // wx/utils.h, this results in warnings from g++ with -Wredundant-decls
@@ -656,12 +656,12 @@ extern void WXDLLIMPEXP_BASE wxExit();
 #define wx_YIELD_DECLARED
 
 // Yield to other apps/messages
-extern bool WXDLLIMPEXP_BASE wxYield();
+WXDLLIMPEXP_CORE bool wxYield();
 
 #endif // wx_YIELD_DECLARED
 
 // Yield to other apps/messages
-extern void WXDLLIMPEXP_BASE wxWakeUpIdle();
+WXDLLIMPEXP_BASE void wxWakeUpIdle();
 
 // ----------------------------------------------------------------------------
 // macros for dynamic creation of the application object
diff --git a/include/wx/utils.h b/include/wx/utils.h
index 8ff50f4a01..4e09746199 100644
--- a/include/wx/utils.h
+++ b/include/wx/utils.h
@@ -713,16 +713,12 @@ inline struct _XDisplay *wxGetX11Display()
 #define wx_YIELD_DECLARED
 
 // Yield to other apps/messages
-WXDLLIMPEXP_BASE bool wxYield();
+WXDLLIMPEXP_CORE bool wxYield();
 
 #endif // wx_YIELD_DECLARED
 
 // Like wxYield, but fails silently if the yield is recursive.
-WXDLLIMPEXP_BASE bool wxYieldIfNeeded();
-
-// ----------------------------------------------------------------------------
-// Error message functions used by wxWidgets (deprecated, use wxLog)
-// ----------------------------------------------------------------------------
+WXDLLIMPEXP_CORE bool wxYieldIfNeeded();
 
 #endif
     // _WX_UTILSH__