imachocbar pkgsrc somehow doesn't wanna use busybox's awk.
For the record, I always set TOOLS_PLATFORM.{awk,sed,install}
to nbawk, nbsed [1] and bsdinstall respectively on systems different from NetBSD, because otherwise the install target of some of the packages I typically build (I lost track of which), would fail (even by using gawk, gsed, and what else). I don't know it that's still the case. SmartOS still uses these settings by default.
[1] It has to be noticed, however, that the standalone nbsed package is outdated compared to the sed version found in base NetBSD.