* changed build to pass DESTDIR, DEST_DIR, INSTROOT and INSTALLROOT not only
to make install but also to plan make during the cross stage. Also added
INSTALL_PREFIX to the list
git-svn-id: svn://svn.opensde.net/opensde/opensde/trunk@21427 10447126-35f2-4685-b0cf-6dd780d3921f