fix VC6 compile

stepmania/src/RageSoundReader_Resample_Good.cpp

@@ -193,6 +193,7 @@ struct PolyphaseFilter
 		AlignedBuffer<float> m_fBuf;
 		int m_iBufNext;
 	};
+	friend struct State;
 
 	PolyphaseFilter( int iUpFactor ):
 		m_pPolyphase( L*iUpFactor )

stepmania/src/archutils/Win32/CrashHandlerNetworking.cpp

@@ -674,7 +674,7 @@ void NetworkPostData::HttpThread()
 	RString sResult;
 	while( m_pStream->GetState() == NetworkStream::STATE_CONNECTED )
 	{
-		sBuf.clear();
+		sBuf.erase( sBuf.begin(), sBuf.end() );
 		void *p = sBuf.GetBuffer( 1024 );
 		int iGot = m_pStream->Read( p, 1024 );
 		if( iGot >= 0 )
@@ -713,7 +713,7 @@ void NetworkPostData::Start( const RString &sHost, int iPort, const RString &sPa
 	m_sHost = sHost;
 	m_iPort = iPort;
 	m_sPath = sPath;
-	m_sStatus.clear();
+	m_sStatus.erase( m_sStatus.begin(), m_sStatus.end() );
 	m_fProgress = 0;
 
 	m_Thread.SetName( "HTTP thread" );