initdb: FATAL: conversion between LATIN2 and UNICODE

Hello.

  I compile pgsql 7.4.2 on Redhat 7.2 on dual AMD (32-bit arch) with:

./configure --prefix=/opt/software/postgresql/7.4.2 \
  --enable-thread-safety --enable-integer-datetimes --enable-nls \
  --with-pgport=5433 --with-perl --with-pam --with-openssl=/usr
make -j3

(I install bison-1875 before I configure pgsql)
Then I run initdb as pgsql user and I get error:

bash-2.05$ /opt/software/postgresql/7.4.2/bin/initdb -D /data.sql/pgsql/7.4.X/standard -E UNICODE
The files belonging to this database system will be owned by user "pgsql".
This user must also own the server process.

The database cluster will be initialized with locale cs_CZ.utf8.

fixing permissions on existing directory /data.sql/pgsql/7.4.X/standard... ok
creating directory /data.sql/pgsql/7.4.X/standard/base... ok
creating directory /data.sql/pgsql/7.4.X/standard/global... ok
creating directory /data.sql/pgsql/7.4.X/standard/pg_xlog... ok
creating directory /data.sql/pgsql/7.4.X/standard/pg_clog... ok
selecting default max_connections... 100
selecting default shared_buffers... 1000
creating configuration files... ok
creating template1 database in /data.sql/pgsql/7.4.X/standard/base/1... ok
initializing pg_shadow... FATAL:  conversion between LATIN2 and UNICODE is not supported

initdb: failed
bash-2.05$

I install pgsql on this machine since 7.1 and I never had same error.
I have 7.4.1 installed without problem. Maybe I make some trivial
mistake but I can't find it.

Do you have some idea?

Luf

P.S. make check - successfuly passed all test.