Cross-platform asynchronous I/O
A lightweight online game framework
A glib-like multi-platform c library
Command line tool and library for transferring data with URLs
A client library to multiplex connections from and to iOS devices
nsync is a C library that exports various synchronization primitives
Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc
Oboe is a C++ library that makes it easy to build high-performance
A library OS for Linux multi-process applications
Bare libuv bindings for lua
C/C++/ObjC language server supporting cross references & hierarchies
Capstone disassembly/disassembler framework
The systemd system and service manager
Lightweight generic ring buffer manager library
Easy to use cryptographic framework for data protection
A powerful server and network library, including coroutine
blingful character graphics/TUI library. definitely not curses
A cross platform C99 library to get cpu features at runtime
Convenience sockets library for FreeBSD and GNU/Linux
Linux to DJGPP cross-compiler with pthread library and std::thread.
tiny User Level Threads library
library for handling exceptions and signals in C
32/64 bit multi-platform Ethernet S7 PLC communication suite
32/64 bit multi-platform Modbus communication library
Real-Time Event Frameworks based on active objects & state machines