The directory /usr/pgsql-9.1/share/extension/ has these files.
-rw-r--r-- 1 root root Â4839 Sep 23 02:26 pg_trgm--1.0.sql
-rw-r--r-- 1 root root  177 Sep 23 02:26 pg_trgm.control
-rw-r--r-- 1 root root Â4092 Sep 23 02:26
pg_trgm--unpackaged--1.0.sql
...
-rw-r--r-- 1 root root 15573 Sep 23 02:26 tsearch2--1.0.sql
-rw-r--r-- 1 root root  313 Sep 23 02:26 tsearch2.control
-rw-r--r-- 1 root root Â8951 Sep 23 02:26
tsearch2--unpackaged--1.0.sql
...
-rw-r--r-- 1 root root Â2013 Sep 23 02:26 tablefunc--1.0.sql
-rw-r--r-- 1 root root  174 Sep 23 02:26 tablefunc.control
-rw-r--r-- 1 root root Â1004 Sep 23 02:26
tablefunc--unpackaged--1.0.sql
Are these the new naming conventions?