automake fixes (SF#1792179: https://sourceforge.net/tracker/index.php?func=detail&aid=1792179&group_id=13478&atid=113478)
automake fixes (SF#1792179: https://sourceforge.net/tracker/index.php?func=detail&aid=1792179&group_id=13478&atid=113478)

fredericgermain/flac,waitman/flac,LordJZ/libflac,waitman/flac,fredericgermain/flac,waitman/flac,waitman/flac,kode54/flac,Distrotech/flac,kode54/flac,waitman/flac,Distrotech/flac,Distrotech/flac,kode54/flac,fredericgermain/flac,LordJZ/libflac,LordJZ/libflac,fredericgermain/flac,Distrotech/flac,LordJZ/libflac,kode54/flac