-Wno-strict-aliasing suppresses warnings that indicate undefined behaviour (due to violating strict aliasing rules), which may cause miscompilation and crashes.

It's fine if you don't want to deal with the strict aliasing rules (I don't either), but then you should use -fno-strict-aliasing (which allows code to simply ignore strict aliasing rules without causing undefined behaviour) instead of -Wno-strict-aliasing.