On 13/05/2020 00:21, Thomas Dwyer III wrote: > Although this works in gcc-4.9.2, it appears that the -z flag wasn't > documented until gcc-5.5. All Google hits I get for "-z defs" take me to > pages that show "-Wl,-z,defs" so it's curious that this particular > option isn't being passed with -Wl like the others. Is there a minimum > supported gcc version for openssl 3.x? None has been specified. You might want to submit your patch as a PR. Matt