| [pkg-config](http://www.freedesktop.org/wiki/Software/pkg-config/) | pkg-config is a helper tool used when compiling applications and libraries. It helps you insert the correct compiler options on the command line so an application can use gcc -o test test.c `pkg-config --libs --cflags glib-2.0` for instance, rather than hard-coding values on where to find glib (or other libraries). |
| [pkg-config](http://www.freedesktop.org/wiki/Software/pkg-config/) | pkg-config is a helper tool used when compiling applications and libraries. It helps you insert the correct compiler options on the command line so an application can use gcc -o test test.c `pkg-config --libs --cflags glib-2.0` for instance, rather than hard-coding values on where to find glib (or other libraries). |
| [Qt](http://qt-project.org/) | Qt is a comprehensive cross-platform C++ application framework. |
| [Qt](http://qt-project.org/) | Qt is a comprehensive cross-platform C++ application framework. |
| [Qt5](http://qt.io/) | Qt is a comprehensive cross-platform C++ application framework. |
| [Qt5](http://qt.io/) | Qt is a comprehensive cross-platform C++ application framework. |
| [sparsehash](https://github.com/sparsehash/sparsehash) | An extremely memory-efficient hash_map implementation. 2 bits/entry overhead! The SparseHash library contains several hash-map implementations, including implementations that optimize for space or speed. |
| [SQLite](http://www.sqlite.org/) | SQLite: SQL Database Engine in a C Library |
| [SQLite](http://www.sqlite.org/) | SQLite: SQL Database Engine in a C Library |
| [SWIG](http://www.swig.org/) | SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages. |
| [SWIG](http://www.swig.org/) | SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages. |
