Log Message:
-----------
This subdirectory has been unused, dead, and broken for 10 years.
Removed Files:
-------------
pgsql/src/backend/port/sunos4:
Makefile
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/sunos4/Makefile)
float.h
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/port/sunos4/float.h)