I did (before I posted the question); I took the Red Hat 8 and Red Hat 9
errata .src.rpm's but both of them are for apache-2 only. The Red Hat 9
.spec is even uncompatible with the RH7.x rpm build system (or at least it
gives as error.) On top of that, they require a huge pile of devel libraries
-- moreover, recent versions of them, which would mean I have to upgrade
things like openldpa, cyrus-sasl, and install freetype and gd... Surely,
with heavy massaging the .spec could be made to work (by disabling
configuration options (although even with --without-freetype it still barfs
on lack of -lttf), but I was trying to imply I didn't find it easy. Hence I
asked íf someone had done it already and could perhaps provide some tips.