2 gawk specific features are used: multi-dimensional arrays and sort() function.

The use of multi-dimensional arrays can be avoided.
However, I do not really want to code a sort in awk.

That script is actually only needed during dev (it re-generates the POTFILES.in
files), not when building from the tarball.

So, I will rather remove the call to that script when building from a tarball.


As for the need for gmake. Well, I hope that it's not an issue on OpenBSD. I
definitely would not like to rewrite those Makefiles... Too much work.