>Try adding -mno-bmi to your CFLAGS and CXXFLAGS to clear the BMI/BMI2 issue. >I don't know about the other cpu flags. GCC is good about taking a cpu >feature, like ADX, and using -madx and -mno-adx. An exception is >RDRAND, whits omits the A for some reason; you use -mrdrnd. >Jeff Using -mno-adx returns checking for linker flag to name executables... configure: error: Could not determine flag to name executables Using -mrdrnd -mno-bmi returns the "illegal instruction" much sooner than before. This is a very bad issue. I really want to know what is the instruction?! Regards, Mahmood
