Casting an rvalue to nonconst reference is illegal. I'm not positive why these are considered to be rvalues when they are cast.

stepmania/src/Profile.cpp

@@ -1161,7 +1161,11 @@ void Profile::LoadGeneralDataFromNode( const XNode* pNode )
 	pNode->GetChildValue( "TotalGameplaySeconds",			m_iTotalGameplaySeconds );
 	pNode->GetChildValue( "CurrentCombo",				m_iCurrentCombo );
 	pNode->GetChildValue( "TotalCaloriesBurned",			m_fTotalCaloriesBurned );
-	pNode->GetChildValue( "GoalType",				(int&)m_GoalType );
+	{
+		int temp;
+		pNode->GetChildValue( "GoalType",			temp );
+		m_GoalType = GoalType( temp );
+	}
 	pNode->GetChildValue( "GoalCalories",				m_iGoalCalories );
 	pNode->GetChildValue( "GoalSeconds",				m_iGoalSeconds );
 	pNode->GetChildValue( "LastPlayedMachineGuid",			m_sLastPlayedMachineGuid );

stepmania/src/ScreenPrompt.cpp

@@ -78,7 +78,7 @@ void ScreenPrompt::BeginScreen()
 	ScreenWithMenuElements::BeginScreen();
 
 	m_Answer = g_defaultAnswer;
-	CLAMP( (int&)m_Answer, 0, g_PromptType );
+	ENUM_CLAMP( m_Answer, PromptAnswer(0), PromptAnswer(g_PromptType) );
 
 	m_textQuestion.SetText( g_sText );
 	SET_XY_AND_ON_COMMAND( m_textQuestion );

stepmania/src/ScreenSetTime.cpp

@@ -148,7 +148,7 @@ void ScreenSetTime::ChangeSelection( int iDirection )
 	SetTimeSelection OldSelection = m_Selection;
 	enum_add<SetTimeSelection>( m_Selection, iDirection );
 
-	CLAMP( (int&)m_Selection, 0, NUM_SetTimeSelection-1 );
+	ENUM_CLAMP( m_Selection, SetTimeSelection(0), SetTimeSelection(NUM_SetTimeSelection-1) );
 	if( iDirection != 0 && m_Selection == OldSelection )
 		return; // can't move any more
 

stepmania/src/ScreenTextEntry.cpp

@@ -406,7 +406,11 @@ void ScreenTextEntryVisual::MoveY( int iDir )
 	do
 	{
 		m_iFocusY = enum_add2( m_iFocusY,  +iDir );
-		wrap( (int&)m_iFocusY, NUM_KeyboardRow );
+		{
+			int temp = m_iFocusY;
+			wrap( temp, NUM_KeyboardRow );
+			m_iFocusY = KeyboardRow( temp );
+		}
 
 		// HACK: Round to nearest option so that we always stop 
 		// on KEYBOARD_ROW_SPECIAL.