archlinux-s390x/patches/pkgbuild
Mathieu Benoit c3916d3982 [ADD] Python packaging, through Arch's own bootstrap path
Three stage-2 builds -- brotli, libseccomp, meson -- stopped on

  /usr/bin/python: No module named build

and building python-build means running `python -m build`. Its dependencies are
the same cycle: packaging and pyproject-hooks are flit_core-backed, installing a
wheel wants python-installer, and none of the six exist yet.

On the host the cycle was already broken -- apt had python3-build -- so stage 1
never met it. Breaking it there again is not possible: apt has no
python3-flit-core at all, so the backend all six need cannot be installed on the
host by any means.

Arch had already solved it, in the PKGBUILDs: `_bootstrap=1` selects a vendored
builder that needs none of the six. That is upstream's supported path through
exactly this situation, and it replaced a half-written alternative here -- three
bespoke hooks calling `python -m flit_core.wheel` and unzipping into $pkgdir --
which would have reimplemented what the PKGBUILD already does properly.

--- FR ---

Trois constructions d'étage 2 — brotli, libseccomp, meson — se sont arrêtées sur

  /usr/bin/python: No module named build

et bâtir python-build suppose d'exécuter `python -m build`. Ses dépendances sont
le même cycle : packaging et pyproject-hooks passent par flit_core, installer une
roue demande python-installer, et aucun des six n'existe encore.

Sur l'hôte le cycle était déjà rompu — apt fournissait python3-build — donc
l'étage 1 ne l'a jamais rencontré. Le rompre à nouveau là est impossible : apt
n'a aucun python3-flit-core, donc le moteur dont les six ont besoin ne peut être
installé sur l'hôte par aucun moyen.

Arch l'avait déjà résolu, dans les PKGBUILD : `_bootstrap=1` sélectionne un
constructeur embarqué qui n'a besoin d'aucun des six. C'est la voie prévue en
amont pour exactement cette situation, et elle a remplacé une solution
à demi écrite ici — trois hooks sur mesure appelant `python -m flit_core.wheel`
puis dézippant dans $pkgdir — qui aurait réimplémenté ce que le PKGBUILD fait
déjà correctement.

Assisted-by: Claude Opus 5
2026-08-21 16:37:55 -04:00
..
audit.sh [FIX] four hooks the closure's second round needed 2026-08-19 06:24:11 -04:00
binutils.sh [FIX] binutils: no PGO+LTO build, so gold links 2026-08-21 04:16:20 -04:00
brotli.sh [REM] sub-packages: four that cost more closure than they carry 2026-08-19 05:28:32 -04:00
ca-certificates.sh [FIX] the chroot could not resolve a name, and wget could not fix itself 2026-08-21 16:29:10 -04:00
cmake.sh [FIX] stage 2: x86_64 compiler flags, and a .pc naming nothing 2026-08-19 20:19:37 -04:00
coreutils.sh [FIX] selinux: the chroot named a host artefact, not a dependency 2026-08-17 01:33:41 -04:00
cryptsetup.sh [FIX] s390x: say which machine this port targets 2026-08-21 00:23:26 -04:00
curl.sh [ADD] TODO.md: track every divergence from upstream Arch 2026-08-16 05:47:47 -04:00
dbus.sh [FIX] the build host answered questions the target should 2026-08-19 05:28:32 -04:00
e2fsprogs.sh [FIX] four hooks the closure's second round needed 2026-08-19 06:24:11 -04:00
expat.sh [FIX] host defaults: apt was deciding what got built 2026-08-17 02:37:46 -04:00
fakeroot.sh [FIX] s390x: say which machine this port targets 2026-08-21 00:23:26 -04:00
filesystem.sh [FIX] filesystem: give s390x the lib64 compatibility symlinks 2026-08-21 00:54:14 -04:00
findutils.sh [FIX] selinux: the chroot named a host artefact, not a dependency 2026-08-17 01:33:41 -04:00
gcc.sh [FIX] s390x: say which machine this port targets 2026-08-21 00:23:26 -04:00
gettext.sh [FIX] the build host answered questions the target should 2026-08-19 05:28:32 -04:00
git.sh [ADD] stage 2: the rebuild loop, and git to feed it 2026-08-19 08:56:41 -04:00
glibc.sh [ADD] devtools stand-ins, and lib32 removal for glibc and gcc 2026-08-15 21:15:01 -04:00
gnutls.sh [FIX] declared, never linked: guile, libisl.so, leancrypto 2026-08-19 05:28:32 -04:00
grep.sh [FIX] grep: the m4 check lives in bootstrap.conf, not bootstrap 2026-08-17 00:00:48 -04:00
kbd.sh [ADD] test-chroot: read the binaries, not the declarations 2026-08-19 06:24:11 -04:00
krb5.sh [FIX] the build host answered questions the target should 2026-08-19 05:28:32 -04:00
lib-python-bootstrap.sh [ADD] Python packaging, through Arch's own bootstrap path 2026-08-21 16:37:55 -04:00
libarchive.sh [FIX] stage 2: produce its first package 2026-08-20 01:12:14 -04:00
libassuan.sh [FIX] canonical CHOST, and a reachable libassuan source 2026-08-16 00:45:50 -04:00
libcap-ng.sh [FIX] four hooks the closure's second round needed 2026-08-19 06:24:11 -04:00
libgcrypt.sh [ADD] libgcrypt: stage 1 consumes its own libgpg-error 2026-08-19 05:28:32 -04:00
libsasl.sh [FIX] four hooks the closure's second round needed 2026-08-19 06:24:11 -04:00
libseccomp.sh [REM] sub-packages: four that cost more closure than they carry 2026-08-19 05:28:32 -04:00
libtool.sh [ADD] port patches: gcc front ends, binutils gold, libtool multilib 2026-08-15 21:01:18 -04:00
libxml2.sh [FIX] stage 2: produce its first package 2026-08-20 01:12:14 -04:00
lvm2.sh [FIX] lvm2: only device-mapper, and the closure closes 2026-08-19 06:40:50 -04:00
lz4.sh [FIX] libdir: the Debian host hid the libraries from Arch 2026-08-17 01:33:41 -04:00
make.sh [FIX] declared, never linked: guile, libisl.so, leancrypto 2026-08-19 05:28:32 -04:00
meson.sh [FIX] python packages: /usr/local, once, for all of them 2026-08-19 20:19:37 -04:00
openssl.sh [FIX] openssl: s390x is big-endian, drop the little-endian EC path 2026-08-16 22:53:33 -04:00
pacman.sh [FIX] libdir: the Debian host hid the libraries from Arch 2026-08-17 01:33:41 -04:00
pam.sh [ADD] host deps: the tools six packages needed and nobody declared 2026-08-17 01:33:41 -04:00
pinentry.sh [FIX] the build host answered questions the target should 2026-08-19 05:28:32 -04:00
python-build.sh [ADD] Python packaging, through Arch's own bootstrap path 2026-08-21 16:37:55 -04:00
python-installer.sh [ADD] Python packaging, through Arch's own bootstrap path 2026-08-21 16:37:55 -04:00
python-packaging.sh [ADD] Python packaging, through Arch's own bootstrap path 2026-08-21 16:37:55 -04:00
python-pyproject-hooks.sh [ADD] Python packaging, through Arch's own bootstrap path 2026-08-21 16:37:55 -04:00
python-setuptools.sh [ADD] Python packaging, through Arch's own bootstrap path 2026-08-21 16:37:55 -04:00
python-wheel.sh [ADD] Python packaging, through Arch's own bootstrap path 2026-08-21 16:37:55 -04:00
python.sh [ADD] the build systems stage 2 rebuilds with 2026-08-19 19:53:46 -04:00
readline.sh [FIX] stage 2: x86_64 compiler flags, and a .pc naming nothing 2026-08-19 20:19:37 -04:00
rsync.sh [FIX] stage 2: the build tools the host was providing silently 2026-08-20 01:34:41 -04:00
sed.sh [FIX] selinux: the chroot named a host artefact, not a dependency 2026-08-17 01:33:41 -04:00
sqlite.sh [FIX] the build host answered questions the target should 2026-08-19 05:28:32 -04:00
systemd.sh [REM] sub-packages: four that cost more closure than they carry 2026-08-19 05:28:32 -04:00
tar.sh [FIX] selinux: the chroot named a host artefact, not a dependency 2026-08-17 01:33:41 -04:00
zstd.sh [FIX] libdir: the Debian host hid the libraries from Arch 2026-08-17 01:33:41 -04:00