dfport warning.

[Bartek Stalewski]

Hello,
When I'm building the new net/pppoa dfports, I have:
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root at insomniac:/usr/ports/net/pppoa# make
WARNING, USING DRAGONFLY OVERRIDE /usr/dfports/net/pppoa
cd /usr/dfports/net/pppoa && make -B fetch
/usr/dfports/net/pppoa is not a subdirectory of /usr/ports
"/usr/share/mk/bsd.port.mk", line 6: warning: "/usr/bin/relpath /usr/ports /usr/dfports/net/pppoa" returned non-zero status
===>  Vulnerability check disabled
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Everything builds clearly, but I'm just curious, why situation like that happens.
Ideas?
--
Bartek Stalewski // werbat at xxxxxxxxxxxxxxx