explicitely check if effectiveApperance is available

(cherry picked from commit a139f8d)
qgis · Nov 22, 2018 · b766969 · b766969
1 parent a622ce5
commit b766969
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/native/mac/qgsmacnative.mm b/src/native/mac/qgsmacnative.mm
@@ -122,7 +122,7 @@ - ( BOOL )userNotificationCenter:( NSUserNotificationCenter * )center shouldPres
 bool QgsMacNative::hasDarkTheme()
 {
 #if __MAC_OS_X_VERSION_MAX_ALLOWED >= __MAC_10_14
-  if (@available(macOS 10.14, *)) {
+  if ([NSApp respondsToSelector:@selector(effectiveAppearance)]) {
     // compiled on macos 10.14+ AND running on macos 10.14+
     // check the settings of effective appearance of the user
     NSAppearanceName appearanceName = [NSApp.effectiveAppearance bestMatchFromAppearancesWithNames:@[NSAppearanceNameAqua, NSAppearanceNameDarkAqua]];