Bug#1133539: libwx-perl: ftbfs with GCC-16

[Niko Tyni]

On Mon, Apr 13, 2026 at 03:06:35PM +0200, Emanuele Rocca wrote:
> Package: src:libwx-perl
> Version: 1:0.9932-9
> Severity: important
> Tags: sid forky ftbfs
> User: debian-gcc at lists.debian.org
> Usertags: ftbfs-gcc-16
> 
> Hi,
> 
> libwx-perl fails to build in a test rebuild on at least amd64 and arm64 with
> gcc-16/g++-16, but builds properly with gcc-15/g++-15. The severity of this
> report will be raised before the forky release.

> Can't load '/build/reproducible-path/libwx-perl-0.9932/ext/help/../../blib/arch/auto/Wx/Help/Help.so' for module Wx::Help:  at /build/reproducible-path/libwx-perl-0.9932/ext/help/../../blib/lib/Wx/Mini.pm line 74.
> Compilation failed in require at t/01_load.t line 7.
> BEGIN failed--compilation aborted at t/01_load.t line 7.
> t/01_load.t ......... 
> 1..1
> Dubious, test returned 2 (wstat 512, 0x200)
> Failed 1/1 subtests 

This fails on sid as well now that GCC-16 is the default.

It seems to be an optimization issue. It works for me on sid/amd64
with DEB_BUILD_OPTIONS=noopt, and also with the attached targeted lower
optimization level.

This is at best a workaround of course. I didn't get further yet, happy
if somebody else wants to pick this up.

-- 
Niko
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