FAQ

libqb build fine but test fail on i686 VM

Build libqb with default rpm settings (mtune=i686), it builds, but ipc and rb tests fail/timeout/segfault which apparently is because gcc "overoptimizes" and some atomic synchronization primitive just does not work. as a workaround simply

export CFLAGS=-O2 -g -march=i586

it seems to be __sync_bool_compare_and_swap() that breaks with the unsuitable gcc flags.