qt: only compile mac mocs on darwin

Author: div72

src/Makefile.qt.include

@@ -145,8 +145,6 @@ QT_MOC_CPP = \
   qt/moc_favoritespage.cpp \
   qt/moc_guiutil.cpp \
   qt/moc_intro.cpp \
-  qt/moc_macdockiconhandler.cpp \
-  qt/moc_macnotificationhandler.cpp \
   qt/moc_monitoreddatamapper.cpp \
   qt/moc_noresult.cpp \
   qt/moc_notificator.cpp \
@@ -199,6 +197,12 @@ QT_MOC_CPP = \
   qt/voting/moc_votingmodel.cpp \
   qt/voting/moc_votingpage.cpp
 
+if TARGET_DARWIN
+QT_MOC_CPP += \
+  qt/moc_macdockiconhandler.cpp \
+  qt/moc_macnotificationhandler.cpp
+endif
+
 GRIDCOIN_MM = \
   qt/macdockiconhandler.mm \
   qt/macnotificationhandler.mm \