MakeMaker bug in 5.8.0

[Robert Nicholson]

So, whenever it creates a doc_site_install rule it uses

doc_site_install ::
-@$(MKPATH) $(INSTALLARCHLIB)
-@$(DOC_INSTALL) \
"Module" "$(NAME)" \
"installed into" "$(INSTALLSITELIB)" \
LINKTYPE "$(LINKTYPE)" \
VERSION "$(VERSION)" \
EXE_FILES "$(EXE_FILES)" \

That MKPATH should be using INSTALLSITEARCH

Can somebody tell me the reasons for the following in ExtUtils/MakeMaker/CHANGES?

6.10_07 Sat Jul 5 16:12:52 PDT 2003
* Fixing location of perllocal.pod so its always in INSTALLARCHLIB
instead of one for each perl, site and vendor.