https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30475
--- Comment #59 from Marian <marian.buschsieweke at ovgu dot de> --- Thanks for the fast replay wget http://ptrace.fefe.de/int.c gcc -Wstrict-overflow=1 -Wall -Wextra -pedantic -o int int.c does not produce a warning (except for the missing `#include <stdio.h>`) on gcc 8.2.0 on Alpine Linux for me, nor on GCC 8.2.1 20181127 an Arch Linux.