The current bootparamd makefiles break if you do a make obj first. It does
work if you don't have the obj link. Here is a patch for it. It will still
work if you don't have an obj link:)

(I stuck a ${DESTDIR} in front of the absolute path to /usr/include... /phk)
Reviewed by: phk
Submitted by: John Hay <jhay@mikom.csir.co.za>