Hi stackprogrammer,um, 3.8.1 is so end-of-life, we probably fixed whatever you're hitting there in a later release of the 3.8 series. So, honestly, if you really have to use GNU Radio 3.8, use a newer GNU Radio 3.8.
Also, such compiler errors come with file and line number information. You're not new to compiling software! Please make error reports as helpful as they need to be in order to allow us to help you.
Best regards, Marcus
