Use host CPython as Python dependency; remove xcb image#627
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We stopped shipping the distributions in 6fa8fe9 in October 2023. At the time we preserved build support just in case. I don't believe anyone has complained about the loss of x86 Linux distributions. I don't believe there is compelling value in PBS supporting x86 Linux distributions. If someone wants to run Python on x86 Linux, they can always use CPython's official build systen, which still supports targeting x86 Linux. This commit rips out our support building for x86 Linux.
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The `xcb` Dockerfile / image existed to provide a host build of CPython, which was required to build libxcb, xcb-proto, and tk. The existence of this image predated our building a host CPython in order to build CPython itself. With PBS now unconditionally building a host CPython, we can use our host CPython during the builds of these packages, eliminating the need for the xcb image. This commit makes that transition. We also upgrade libxcb and xcb-proto to the latest version as part of this migration. Older versions of libxcb aren't compatible with Python 3.12+ due to removal of the `imp` module.
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geofft
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Great, the xcb image confused me :)
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The
xcbDockerfile / image existed to provide a host build of CPython, which was required to build libxcb, xcb-proto, and tk. The existence of this image predated our building a host CPython in order to build CPython itself.With PBS now unconditionally building a host CPython, we can use our host CPython during the builds of these packages, eliminating the need for the xcb image.
This commit makes that transition.
We also upgrade libxcb and xcb-proto to the latest version as part of this migration. Older versions of libxcb aren't compatible with Python 3.12+ due to removal of the
impmodule.