The following bug has been logged online:

Bug reference: 1450
Logged by: Dirk
Email address: dirk.cap (AT) skynet (DOT) be
PostgreSQL version: ?
Operating system: Qnx
Description: unknown symbols
Details:

Hi,

I try to resolv some test on an qnx based system, but there is
with every command I use an unknown symbol : wcwidth
The postgresql system could not resolv all symbols.
The installation is made from the standard repository used on qnx.

greetings

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