Fix FTBFS

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1175080 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

kmix/mixertoolbox.cpp

@@ -32,6 +32,7 @@
 
 #include "mixertoolbox.h"
 
+#ifndef KMIX_PLATFORMS_CPP
 typedef Mixer_Backend *getMixerFunc( int device );
 typedef TQString getDriverNameFunc( );
 typedef DevIterator* getDevIteratorFunc( );
@@ -43,6 +44,7 @@ struct MixerFactory {
 };
 
 extern MixerFactory g_mixerFactories[];
+#endif
 
 /***********************************************************************************
  Attention: