glitch installing xml support in 9.1.beta2

OpenSuse 11.4 x86-64

gmake install builds and places the requisite pieces as expected.

Running
psql --username postgres -d postgres -f xml2--1.0,sql
results in

psql:xml2--1.0.sql:8: ERROR: function "xml_valid" already exists
with same argument types
psql:xml2--1.0.sql:12: ERROR: could not access file
"MODULE_PATHNAME": No such file or directory
psql:xml2--1.0.sql:16: ERROR: could not access file
"MODULE_PATHNAME": No such file or directory
psql:xml2--1.0.sql:20: ERROR: could not access file
"MODULE_PATHNAME": No such file or directory
psql:xml2--1.0.sql:24: ERROR: could not access file
"MODULE_PATHNAME": No such file or directory
psql:xml2--1.0.sql:28: ERROR: could not access file
"MODULE_PATHNAME": No such file or directory
psql:xml2--1.0.sql:34: ERROR: could not access file
"MODULE_PATHNAME": No such file or directory

(This from second run, so xml_valid worked the first time).

I see that the xml2.control file defines module_pathname =
'$libdir/pgxml', but how is that passed to the psql run? Or am I to
manually update the sql scripts?
.

Here's my configuration of the main build
./configure --with-libraries=/usr/local/lib --with-python
--with-openssl --with-ldap --with-ossp-uuid --with-libxml --with-libxslt
--enable-debug --prefix=/opt/PostgreSQL/9.1

Haven't gone into uuid stuff yet...

Cheers,