avr-libc: avr-libc (C library for programming on the AVR platform) avr-libc: avr-libc: This package contains a high quality C library avr-libc: for use with GCC on Atmel AVR microcontrollers. avr-libc: avr-libc: avr-libc: avr-libc: avr-libc: avr-libc: avr-libc: