'configure --disable-shared' and 'make check'

I notice that when I run 'make check' on a
statically linked HEAD, it fails during
'createlang' with

============== installing plpgsql                     ==============
ERROR:  could not access file "$libdir/plpgsql": No such file or
directory
command failed:
"/postgres/cvs/pgsql/src/test/regress/./tmp_check/install//magwien/postg
res-8.2.a/bin/psql" -X -c "CREATE LANGUAGE \"plpgsql\"" "regression"

This is not a problem of the regression test
since I see the same behaviour when I do it manually.

Yours,
Laurenz Albe