https://github.com/rontap/elteik-web/raw/main/teaching/opsys/materials/gy4/gy04.zip
gcc -Wall -Werror=vla -pthread -std=c11 -pedantic -o a.out ./signal.c -lrt && ./a.out
OS/X-en pedig:
clang -Wall -Werror=vla -pthread -std=c11 -pedantic -o a.out ./signal.c && ./a.out
https://en.wikipedia.org/wiki/Unix_wars#/media/File:Unix_timeline.en.svg