Bug#1137720: mesa: Mesa 26.0+ FTBFS on ppc64 due to endianness issues

Sean McGovern <[email protected]> Tue, 26 May 2026 16:59:32 -0400

Newsgroups	gmane.linux.debian.ports.powerpc
Message-ID	<177982917209.3660174.11361757987741319562.reportbug__17516.7163646378$1779829646$gmane$org@ganyu>

Source: mesa
Version: 26.0.7
Severity: serious
Tags: ftbfs
Justification: fails to build from source (but built successfully in the past)
X-Debbugs-Cc: [email protected]
User: [email protected]
Usertags: ppc64

Dear Maintainer,


   * What led up to the situation?

Noted the long-standing FTBFS of Mesa on ppc64, attempted to sbuild locally which produced the same result.

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?

Performed an sbuild on an Apple G5 which failed in the same manner as the buildd.
Disabled nouveau in debian/control and the build was successful.
Will attach a patch to this bug report.


-- System Information:
Debian Release: forky/sid
  APT prefers unreleased
  APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: ppc64
Foreign Architectures: powerpc

Kernel: Linux 7.0.9+deb14-powerpc64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled