__GNUC_MINOR__    124 core/ngx_config.h #if ((__GNU__ == 2) && (__GNUC_MINOR__ < 8))
__GNUC_MINOR__     67 os/unix/ngx_gcc_atomic_x86.h #if !(( __GNUC__ == 2 && __GNUC_MINOR__ <= 7 ) || ( __INTEL_COMPILER >= 800 ))