BUG #1361: errors in install

The following bug has been logged online:

Bug reference:      1361
Logged by:
Email address:      long@asiafrance.com
PostgreSQL version: 7.4.6
Operating system:   Linux
Description:        errors in install
Details:

Hi,

I have two errors :

* When i want to create a DB, he replies :
"relocation error: createdb: undefined symbol: get_progname"

* I can't start or stop the database. It replies that i have an old version
of PG, but i don't know how to delete them end reinstall it.

Can anybody help me?

Thanks.
M. DANG