Log Message:
-----------
Generate back-branch configure scripts with the appropriate version of autoconf.
Tags:
----
REL7_4_STABLE
Modified Files:
--------------
pgsql:
configure (r1.310.2.20 -> r1.310.2.21)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.diff?r1=1.310.2.20&r2=1.310.2.21)