Browsing Packages.txt, I just read:

    ${X11BASE} points to the root of the installed X11 tree. To refer to
    the   installed location of an X11 package, use the ${X11PREFIX}
    definition (this   will be ${X11BASE} if xpkgwedge is not installed,
    and ${LOCALBASE} if   xpkgwedge is installed). 

This seems to not only depend on xpkgwedge, but also if the pkg in
question was installed before or after xpkgwedge. Also, the recently
introduced EVAL_PREFIX needs to be mentioned here, too.


 - Hubert

-- 
NetBSD - because Unix isn't just #include <linux.h>, i386, ILP32, ELF, ...!