What distro was this on?
I tested this on an F21 system, with a fresh install of opendkim: # opendkim -V opendkim:...
Add -V option for --with-spf2
And... cancel this one out. Including "opendbx-devel" instead of just "opendbx" did...
Won't build --with-odbx on RedHat systems, even though opendbx package is available
OpenDKIM is silent if SQL datasets + systemd service dependencies = not starting on boot
Include --disable-rpath compile flag support
Include --disable-rpath compile support