is BUILDLINK_DEPENDS.pkg dead?

[Klaus Heinz <k.heinz.mai.sechs%onlinehome.de@localhost>]

Hi,

I just noticed that I can no longer specify which version of a package
included through its buildlink3.mk I need.
At least until pkgsrc-2005Q4 this used to work:

  BUILDLINK_DEPENDS.tiff+=tiff>=3.7.1
  ...
  .include "../../graphics/tiff/buildlink3.mk"

Nowadays (with pkgsrc-current), BUILDLINK_DEPENDS.tiff isn't even
pre-defined anymore

  $ make show-var VARNAME=BUILDLINK_DEPENDS.tiff

  $ 

Neither doc/pkgsrc.txt (still talks of BUILDLINK_DEPENDS.pkg) nor
mk/buildlink3/bsd.buildlink3.mk tell me what to do.

ciao
     Klaus