The last suggestion from David in http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=431883#60 seems fine to me. Ideally, I'd like the wording to be even clearer than it is that dcraw is under the GPLv2 or later (or at the distributor's option, a list of other licences).
I'm also naively assuming that the licence here is for dcraw as a whole, not particular to single source files. (In the latter case, we need to make sure the GPLv2 (or another free licence) is ok for all source files.)
The last suggestion from David in http:// bugs.debian. org/cgi- bin/bugreport. cgi?bug= 431883# 60 seems fine to me. Ideally, I'd like the wording to be even clearer than it is that dcraw is under the GPLv2 or later (or at the distributor's option, a list of other licences).
I'm also naively assuming that the licence here is for dcraw as a whole, not particular to single source files. (In the latter case, we need to make sure the GPLv2 (or another free licence) is ok for all source files.)