When did "--with-pgsourcetree" get taken out of configure?

That breaks the ability to build Slony on AIX, because there are
export files ($SOURCETREE/src/backend/postgres.imp) and library
utilities ($SOURCETREE/src/backend/port/aix/mkldexport.sh) that are
_not_ part of the compiled build.

I have to hack up the Makefile.port file by hand, which rather defeats
the purpose of using configure...
-- 
"cbbrowne","@","ca.afilias.info"
<http://dev6.int.libertyrms.com/>
Christopher Browne
(416) 673-4124 (land)