Changed RSR_WAV and RSR_Resample_Good back to using alloca because only gcc/C99 like dynamic arrays. RSR_SpeedChange now uses new/delete in spite of the performance.

src/RageSoundReader_SpeedChange.cpp

@@ -89,10 +89,11 @@ int RageSoundReader_SpeedChange::FillData( int iMaxFrames )
 		if( iBytesToRead <= 0 )
 			return m_iDataBufferAvailFrames;
 
-		float pTempBuffer[iBytesToRead/sizeof(float)];
+		float* pTempBuffer= new float[iBytesToRead/sizeof(float)];
 		int iGotFrames = m_pSource->Read( pTempBuffer, iFramesToRead );
 		if( iGotFrames < 0 )
 		{
+			delete[] pTempBuffer;
 			if( iGotFrames == END_OF_FILE && m_iDataBufferAvailFrames )
 				return m_iDataBufferAvailFrames;
 			return iGotFrames;
@@ -114,6 +115,7 @@ int RageSoundReader_SpeedChange::FillData( int iMaxFrames )
 				++pOut;
 			}
 		}
+		delete[] pTempBuffer;
 
 		m_iDataBufferAvailFrames += iGotFrames;
 	}