flac uses abstracted inputStream stuff

git-svn-id: https://svn.musicpd.org/mpd/trunk@905 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/inputStream.h

@@ -34,6 +34,7 @@ typedef struct _InputStream {
 int openInputStreamFromFile(InputStream * inStream, char * filename);
 int seekInputStream(InputStream * inStream, long offset, int whence);
 int closeInputStream(InputStream * inStream);
+int inputStreamAtEOF(InputStream * inStream);
 
 size_t readFromInputStream(InputStream * inStream, void * ptr, size_t size,
 		size_t nmemb);