Re: Bug report: gnucap-default-plugins.so fails to load on Arch Linux (snapshot 2026.03.29)

On Mon, May 25, 2026 at 08:42:17PM +0200, Aniol Martí wrote:
> Hello,
> 
> I am writing to report a bug in gnucap snapshot 2026.03.29 on Arch Linux
> x86_64.
> 
> ## Summary
> 
> gnucap fails to load gnucap-default-plugins.so at startup, causing all
> directives (.INCLUDE, .PRINT, .AC, .END, etc.) to be unrecognized.

Thanks Aniol for your bug report.

I have not tried the Arch package, but here are two quick thoughts that
might resolve the problem.

1. You should see something like

[..]
main version: ...
core-lib version: ...
default plugins: ...

when running gnucap with default settings. The third line is printed by
the plugin itself, so the loading was successful.

2. case sensitivity. The default language was changed in the 20251222-dev
snapshot. It is now case sensitive (see NEWS).

The .AC etc. commands should still work as expected in "spice batch
mode". in this mode, both the dot and the capitalised letters will be
interpreted the way Spice does.

Running gnucap with --spice should result in the pre-2025 behaviour. See
README for details.

> Manually running `load /usr/lib/gnucap/gnucap-default-plugins.so` in
> interactive mode triggers a segmentation fault with the message "already
> loaded, replacing".

Looks like a bug. I will investigate.

cheers
Felix