在為 Linux 開發應用程序時，絕大多數情況下使用的都是 C 語言，因此幾乎每一位 Linux程序員面臨的首要問題都是如何靈活運用 C 編譯器。目前 Linux 下最常用的C 語言編譯器是 GCC（GNU Compiler Collection），它是 GNU項目中符合 ANSI C 標準的編譯系統，能夠編譯用C、C++和Object C 等語言編寫的程序。GCC 不僅功能非常強大，結構也異常靈活。最值得稱道的一點就是它可以通過不同的前端模塊來支持各種語言，如 Java、 Fort ran、Pascal、Modula-3和 Ada等。
3rd Generation Partnership Project
Technical Specification Group Services and System Aspects
ansi-C code for the Fixed-point
Extended AMR - Wideband (AMR-WB+) codec
(Release 7)
This library defines basic operation on polynomials, and contains also 3 different roots (zeroes)-finding methods that can handle quite large polynomials (>1000 coefs)
Implemented in ANSI C++ Templates. Handles all real and complex floating point types. Html doc is included.
This project provides a general purpose library which implements read and write support for MMC, SD and SDHC memory cards. Written in ANSI C portable for several Microcontrollers.
