small fixes and other stuff

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@132 0778d3d1-df1d-0410-868b-ea421aaaa00d

src/core/mixer.cpp

@@ -25,6 +25,8 @@
  */
 
 
+#include <math.h>
+
 #include "mixer.h"
 #include "play_handle.h"
 #include "song_editor.h"
@@ -699,7 +701,7 @@ void FASTCALL mixer::scaleClip( fpab_t _frame, ch_cnt_t _chnl )
 	}
 			
 	// check for clip
-	if( fabs( m_writeBuf[_frame][_chnl] ) > 1.0f )
+	if( fabsf( m_writeBuf[_frame][_chnl] ) > 1.0f )
 	{
 		m_clipped[_chnl] = TRUE;
 		if( fabs( m_writeBuf[_frame][_chnl] ) >

src/widgets/volume_knob.cpp

@@ -28,6 +28,23 @@
 #include <math.h>
 
 #include "volume_knob.h"
+#include "main_window.h"
+#include "config_mgr.h"
+#include "text_float.h"
+#include "string_pair_drag.h"
+
+#ifndef QT3
+
+#include <QtGui/QApplication>
+#include <QtGui/QInputDialog>
+
+#else
+
+#include <qapplication.h>
+#include <qinputdialog.h>
+
+#endif
+
 
 
 volumeKnob::volumeKnob( int _knob_num, QWidget * _parent, const QString & _name,