Non-Solaris dtrace support is disabled in 8.4!!!? - Mailing list pgsql-hackers

I have just discovered that this commit
http://archives.postgresql.org/pgsql-committers/2008-03/msg00316.php
which was alleged to improve our dtrace support on non-Solaris operating
systems, actually disabled it completely:
+ ifeq ($(PORTNAME), solaris) ifeq ($(enable_dtrace), yes) LOCALOBJS += utils/probes.o endif
+ endif  OBJS = $(SUBDIROBJS) $(LOCALOBJS) $(top_builddir)/src/port/libpgport_srv.a

Wasn't anybody paying attention?
        regards, tom lane