| Directory | Language | License | |
|---|---|---|---|
| compression | libarchive | C | Permissive |
| compression | libbrotli | C | Permissive |
| compression | libbz2 | C | Permissive |
| compression | liblz4 | C | Permissive |
| compression | liblzma | C | Permissive |
| compression | libz | C | Permissive |
| compression | libzstd | C | Permissive |
| crypto | libgcrypt | C | LGPL |
| crypto | libmbedtls | C | Apache |
| crypto | libressl | C | Apache |
| crypto | libsodium | C | Permissive |
| crypto | libssh2 | C | Permissive |
| crypto | nacl | C | Permissive |
| crypto | netpgp | C | Permissive |
| crypto | openssh | C | Permissive |
| encoding | cdb | C | Permissive |
| encoding | libexpat | C | Permissive |
| encoding | libxml2 | C | Permissive |
| encoding | sqlite | C | Permissive |
| fundamental | libarch | C | Permissive |
| fundamental | libc | C | Permissive |
| fundamental | libedit | C | Permissive |
| fundamental | libffi | C | Permissive |
| fundamental | libgc | C | Permissive |
| fundamental | libgmp | C | LGPL |
| fundamental | libgomp | C | GPL |
| fundamental | libkern | C | Permissive |
| fundamental | libmpc | C | LGPL |
| fundamental | libmpfr | C | LGPL |
| fundamental | libpthread | C | Permissive |
| fundamental | libreadline | C | GPL |
| fundamental | librsync | C | LGPL |
| fundamental | librt | C | Permissive |
| fundamental | libsigsegv | C | GPL |
| fundamental | libusbhid | C | Permissive |
| graphics | fontconfig | C | Permissive |
| graphics | freetype | C | GPL-or-Permissive+advertising |
| graphics | libgif | C | Permissive |
| graphics | libgs | C | AGPL |
| graphics | libjbig | C | GPL |
| graphics | libjbig2dec | C | AGPL |
| graphics | libjpeg | C | Permissive |
| graphics | libpng | C | Permissive |
| graphics | libtiff | C | Permissive |
| graphics | mesa | C | Permissive |
| kernel | C | Permissive | |
| multimedia | blink | C++ | LGPL |
| multimedia | ffmpeg | C | GPL-and-LGPL |
| multimedia | fluidsynth | C | LGPL |
| multimedia | libflac | C | Permissive |
| multimedia | libogg | C | Permissive |
| multimedia | libtheora | C | Permissive |
| multimedia | libvorbis | C | Permissive |
| multimedia | speex | C | Permissive |
| multimedia | x264 | C | GPL |
| multimedia | x265 | C | GPL |
| toolchain | autoconf | C | GPL |
| toolchain | automake | C | GPL |
| toolchain | binutils | C | GPL |
| toolchain | chicken | C | Permissive |
| toolchain | cmake | C++ | Permissive |
| toolchain | gcc | C++ | GPL |
| toolchain | gdb | C | GPL |
| toolchain | tcc | C | LGPL |
| Directory | Language | License | |
|---|---|---|---|
| ports | akku | ||
| ports | bigloo | C | GPL-and-LGPL |
| ports | ccl | ||
| ports | chezscheme | ||
| ports | chibi-scheme | C | Permissive |
| ports | clisp | C | GPL |
| ports | cyclone | C | MIT |
| ports | emacs | C | GPL |
| ports | gambit | C | Apache-or-LGPL |
| ports | gauche | C | Permissive |
| ports | guile | ||
| ports | loko | Scheme | AGPL |
| ports | mlton | ||
| ports | ocaml | ||
| ports | opam | ||
| ports | quicklisp | ||
| ports | racket | ||
| ports | sbcl | C | Permissive |
| ports | smlnj | ||
| ports | tinyscheme | C | Permissive |