diff --git a/include/wx/popupwin.h b/include/wx/popupwin.h
index 4f451a644e..a4438261d4 100644
--- a/include/wx/popupwin.h
+++ b/include/wx/popupwin.h
@@ -134,7 +134,7 @@ protected:
 
     // wxOSX/Carbon doesn't generate mouse capture loss events currently so
     // poll for the capture loss ourselves.
-#if wxOSX_USE_CARBON
+#if defined(__WXMAC__) && wxOSX_USE_CARBON
     // check if the mouse needs captured or released
     void OnIdle(wxIdleEvent& event);
 #endif
diff --git a/src/common/popupcmn.cpp b/src/common/popupcmn.cpp
index 36445b9087..bf9c45aa06 100644
--- a/src/common/popupcmn.cpp
+++ b/src/common/popupcmn.cpp
@@ -116,7 +116,7 @@ BEGIN_EVENT_TABLE(wxPopupFocusHandler, wxEvtHandler)
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(wxPopupTransientWindow, wxPopupWindow)
-#if wxOSX_USE_CARBON
+#if defined(__WXMAC__) && wxOSX_USE_CARBON
     EVT_IDLE(wxPopupTransientWindow::OnIdle)
 #endif
 END_EVENT_TABLE()
@@ -426,7 +426,7 @@ bool wxPopupTransientWindow::ProcessLeftDown(wxMouseEvent& WXUNUSED(event))
     return false;
 }
 
-#if wxOSX_USE_CARBON
+#if defined(__WXMAC__) && wxOSX_USE_CARBON
 void wxPopupTransientWindow::OnIdle(wxIdleEvent& event)
 {
     event.Skip();