Free lossless audio codec

Current versions

flac requires the following formulae to be installed:
xz 5.2.3 General-purpose data compression with high compression ratio
pkg-config 0.29.2 Manage compile and link flags for libraries
libogg 1.3.3 Ogg Bitstream Library

Reverse dependencies

The following formulae require flac to be installed:
mp3fs 0.91 Read-only FUSE file system: transcodes audio formats to MP3
sdl_sound 1.0.3_1 Library to decode several popular sound file formats
libfishsound 1.0.0 Decode and encode audio data using the Xiph.org codecs
flactag 2.0.4_1 Tag single album FLAC files with MusicBrainz CUE sheets
scummvm-tools 1.9.0 Collection of tools for ScummVM
abcde 2.8.1_1 Better CD Encoder
ocp 0.1.21 UNIX port of the Open Cubic Player
cmus 2.7.1_2 Music player with an ncurses based interface
qmmp 1.1.8 Qt-based Multimedia Player
vorbis-tools 1.4.0_1 Ogg Vorbis CODEC tools
vice 3.1_1 Versatile Commodore Emulator
moc 2.5.2_2 Terminal-based music player
mkvtoolnix 18.0.0 Matroska media files manipulation tools
sdl2_mixer 2.0.2_3 Sample multi-channel audio mixer library
gst-plugins-good 1.12.4 GStreamer plugins (well-supported, under the LGPL)
audacious 3.9 Free and advanced audio player based on GTK+

Recent formula history

Mike McQuaid flac: fix rubocop warning.
Viktor Szakats flac: secure url(s)
FX Coudert flac: drop universal
ilovezfs flac 1.3.2
Mike McQuaid flac: remove unused fails_with :llvm.

Formula code at GitHub