Hello all.  I'm stuck here and worried that if I don't do it properly, that nothing will work properly so I thought I'd ask.
Where it says "All dependencies must be rebuilt with the above toolchain." do I have to go through the entire process again up until this point but using mingw64? 

Or do I only need to type "Configure mingw64" somewhere?  If so, where do I type it?

Sorry for the noob question.  Any info appreciated.