The actual fix as been done by "pkglint -F */*/buildlink3.mk", and was reviewed manually. There are some .include lines that still are indented with zero spaces although the surrounding .if is indented. This is existing practice.
See the thread for modularity issues etc: http://mail-index.netbsd.org/pkgsrc-users/2014/09/07/msg020346.html See more info at recent gnuradio-core/Makefile commit log, thanks.