| pthreads | a POSIX C library for threads |
| libuuid | a DCE compatible Universally Unique Identifier library. |
| linenoise | a small self-contained alternative to readline and libedit. |
| uthash | a hash table for C structures library. |
| OpenSSL | a C library that implement the SSL and TLS protocols |
| Link Grammar | a C library that provides a multi-language syntactic parser. |
| PCRE2 | a C library that provides Perl Compatible Regular Expressions. |
| Atom | the hackable text editor for the 21st Century. |
| GCC | the GNU Compiler. |
| LaTeX | a document preparation system. |
| LaTeXML | a LaTeX to XML/HTML/MathML converter. |