Make compile with -no-widgets

Change-Id: I6a057950315a1e2084fd6fc130007f865d096f12
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

examples/examples.pro

@@ -1,12 +1,13 @@
 TEMPLATE = subdirs
 
+SUBDIRS += audiodecoder
+
 # These examples all need widgets for now (using creator templates that use widgets)
 !isEmpty(QT.widgets.name) {
     SUBDIRS += \
         radio \
         camera \
         spectrum \
-        audiodecoder \
         audiorecorder \
         audiodevices \
         audioinput \
@@ -15,14 +16,15 @@ TEMPLATE = subdirs
         videowidget \
         player
 
-    contains(QT_CONFIG, qml) {
+    QT += widgets
+}
+
+!isEmpty(QT.gui.name):!isEmpty(QT.qml.name) {
     disabled:SUBDIRS += declarative-camera
     SUBDIRS += \
         declarative-radio \
         video
 }
 
-    QT += widgets
-}
-
 config_openal: SUBDIRS += audioengine
+