Anyone tried setting "CC=ccache cc" in /etc/mk.conf after installing
devel/ccache?  I was upgrading perl and png, so I had a lot of
packages that were going to be rebuilt a second time for no real
reason.  (OK, I could have done better than cd perl5;make update;cd
png;make update, but that's what I did...)

It seems that this causes buildlink some problems, and simply
commenting the line out in /etc/mk.conf and typing make update
again is not enough.  I had to make sure that configure ran again
to avoid some message about -tag not being implemented by ld or
something like that.  (It was a couple of weeks ago, and I am
reasonably buildlink clueless...)

Any want to look into this?  I can try to rebuild a few of those
packages and get the errors if anyone would like.

Jon