[Bug 292574] mail/thunderbird 147.0.1: Build failure while configuring

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 292574] www/firefox 147.0: Build failure while configuring"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 02 Feb 2026 00:31:03 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292574

Christoph Moench-Tegeder <cmt@freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |cmt@freebsd.org

--- Comment #16 from Christoph Moench-Tegeder <cmt@freebsd.org> ---
The actual problem is this here:
: DEBUG: | FileNotFoundError: [Errno 2] No such file or directory (originated
from sysctlbyname('kern.sched.topology_spec') malloc 1/3)

I have no idea how you managed to break that sysctl, it does in fact exist on
14.3 (as witnessed here, and the package build also passes
https://pkg-status.freebsd.org/beefy22/data/143amd64-default/fc7460de47a6/logs/thunderbird-147.0.1.log
).

Did you maybe modify your kernel config, perhaps switching to SCHED_4BSD?

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