The GNU C Library (glibc)
www.gnu.org › software › libcThe GNU C Library is designed to be a backwards compatible, portable, and high performance ISO C library. It aims to follow all relevant standards including ISO C11, POSIX.1-2008, and IEEE 754-2008. The project was started circa 1988 and is more than 30 years old. You can see the complete project release history on the wiki.
The Newlib Homepage
https://sourceware.org/newlibNewlib thrives on net contributions from people like you. We're looking for contributions of code, bugfixes, optimizations, documentation updates, web page improvements, etc. A nice testsuite to automate the testing of newlib is also needed.
Newlib - Wikipedia
https://en.wikipedia.org/wiki/NewlibNewlib is included in commercial GCC distributions by Atollic, CodeSourcery, Code Red, KPIT, Red Hat and others, and receives support from major embedded-processor architecture vendors such as ARM and Renesas. It is used as the standard C library in Cygwin, as well as being one standard C library among several for AmigaOS 4. As of 2007 , devkitARM and devkitPPC, toolchains targeted at homebrewdevelopment for comm…