Vorbis tools do not build with gcc 4.9 and "-Werror=format-security" flag
vorbis-tools-1.4.0-12.fc21 FTBFS if "-Werror=format-security" flag is used.
.. status.c: In function ‘print_statistics_line’: status.c:151:7: error: format not a string literal and no format arguments [-Werror=format-security] len += sprintf(str+len, stats->formatstr);