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Is it possible to enable stderr in completion code?

X-seq: zsh-workers 54472
From: Philippe Altherr <philippe.altherr@xxxxxxxxx>
To: Zsh hackers list <zsh-workers@xxxxxxx>
Subject: Is it possible to enable stderr in completion code?
Date: Tue, 5 May 2026 13:39:38 +0200
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When I run the test Y01completion.ztst, messages written to stderr within Zle/complete.c don't show up anywhere. Thus, calls to DPUTS, like this one will never break any test even if they start triggering.

Is there a way to enable stderr, either with a change in Zsh code or in C code?

I'm just looking for a way to test/debug a few changes in the Zle C code. I would like that messages written to stderr in that code show up in the output of tests like the one above. Any hack will do.

Philippe

Follow-Ups:
- Re: Is it possible to enable stderr in completion code?
  - From: Bart Schaefer

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