check that wxUSE_DISPLAY==1

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22570 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/samples/display/display.cpp b/samples/display/display.cpp
index 0744d063d4ca3cdbb7acbff63c184c628a15365e..1e1b8f20389fa7e28383a24334648fe7d594027c 100644 (file)
--- a/samples/display/display.cpp
+++ b/samples/display/display.cpp
@@ -24,6 +24,10 @@
     #pragma hdrstop
 #endif
 
+#if !wxUSE_DISPLAY
+    #error "To compile this sample you must build the library with wxUSE_DISPLAY set to 1"
+#endif
+
 // for all others, include the necessary headers explicitly
 #ifndef WX_PRECOMP
     #include "wx/app.h"