prefix - prefix: Support PostgreSQL 8.4, get rid of pg_qsort warning

Log Message:
-----------
Support PostgreSQL 8.4, get rid of pg_qsort warning

Modified Files:
--------------
prefix:
Makefile (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/Makefile.diff?r1=1.9&r2=1.10)
prefix.c (r1.45 -> r1.46)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.c.diff?r1=1.45&r2=1.46)
prefix/debian:
changelog (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/debian/changelog.diff?r1=1.4&r2=1.5)
control (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/debian/control.diff?r1=1.3&r2=1.4)