[Boost-users] Boost, MacOSx, and 64 bit

I have built boost 1.68 and 1.69 on MacOSX. When I try to use the binary components in a link, I get an error about not being able to find a version for x86_64. Does anyone have any tips? Is there a 64 but specific define for the build? Boost 1.66 from MacPorts seems to be fine but they don’t have 1.68 or 1.69 available (yet). I have a lot of software build using MacPorts so a migration to Homebrew is not really doable at this time.