C standard library - Wikiwand
What is POSIX? Richard Stallman explains | Opensource.com
Comparison of C/POSIX standard library implementations for Linux
glibc
The GNU C Library
Glibc - Wikiwand
PDCLib
blanham/PDCLib Public Domain C Library
musl libc
nolibc
Nolibc: a minimal C-library replacement shipped with the kernel [LWN.net]
linux/tools/include/nolibc/nolibc.h at master · torvalds/linux
Microsoft VCRT
Microsoft Windows library files - Wikiwand
μClibc
MMU-less
dietlibc
MMU-less
diet libc - a libc optimized for small size
Dietlibc - Wikiwand
Newlib
MMU-less