7.2b2 "make check" failure on Red Hat Linux 7.2

Red Hat Linux 7.2, postgresql 7.2b2 configured like this:

./configure --enable-syslog --prefix=/usr --sysconfdir=/etc --with-pam
--with-openssl --with-unixodbc --with-tcl --with-perl --with-python
--enable-locale --enable-recode --enable-multibyte --enable-nls

"make check" fails on initdb:

============== creating temporary installation ==============
============== initializing database system ==============

pg_regress: initdb failed
Examine ./log/initdb.log for the reason.

teg(at)halden postgresql-7.2b2]$ cat src/test/regress/log/initdb.log
Running with noclean mode on. Mistakes will not be cleaned up.
/home/devel/teg/postgresql-7.2b2/src/test/regress/./tmp_check/install//usr/bin/pg_encoding: relocation error: /home/devel/teg/postgresql-7.2b2/src/test/regress/./tmp_check/install//usr/bin/pg_encoding: undefined symbol: pg_valid_server_encoding
initdb: pg_encoding failed

Perhaps you did not configure PostgreSQL for multibyte support or
the program was not successfully installed.
[teg(at)halden postgresql-7.2b2]$

--
Trond Eivind Glomsrød
Red Hat, Inc.