> I don't think -Wno-unsafe-loop-optimisations is valid. One has to 
remove -Wunsafe-loop-optimisations instead, which is currently in 
WARN_FLAGS.
It's just a question of spelling.
Also note that warnings from gnulib and minilzo are -Wno-error


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko