xpkgwedge is the package we use to install packages which would
normally be installed under ${X11BASE} in ${LOCALBASE}.

Up until now, the support for xpkgwedge has been spotty in pkgsrc.
Some packages would work fine, others would fail to find headers
or libraries.

I've just committed some changes to package Makefiles which should
fix the situation. Furthermore, the changes are intended to make
the time of installation of xpkgwedge irrelevant - packages which
were installed into ${X11BASE} before xpkgwedge was installed should
still be found, as should any installed into ${LOCALBASE} after
xpkgwedge was installed.

If you see any problems related to the installed location of
packages, please would you send-pr them.

Thanks,
Alistair