archlinux-s390x/patches/pkgbuild
Mathieu Benoit ef143aac67 [FIX] s390x: say which machine this port targets
zlib stopped on '__builtin_s390_vec_unpackl' requires '-mvx', after its own
configure had detected vector support and defined -DHAVE_S390X_VX. Both halves
were right, so it was worth measuring rather than patching:

  host gcc (Ubuntu)  --with-arch=z13 --with-tune=z16   default -march=arch11
  our  gcc           nothing                           default -march=arch5

arch5 is z900, from 2000. Arch's PKGBUILD names no s390x baseline because Arch
has no s390x, so ours fell back to the oldest machine imaginable while zlib went
on detecting a CPU the compiler had been told to forget. Every distribution
picks one of these; this port had never said which, and silence chose 2000.

z13 is what Ubuntu s390x already requires, so nothing that runs today stops.
Set in two places: makepkg.conf, how this distribution is compiled, and gcc's
--with-arch, what the compiler we ship assumes with no flags at all.

--- FR ---

zlib s'est arrêté sur '__builtin_s390_vec_unpackl' requires '-mvx', après que
son propre configure avait détecté le support vectoriel et défini
-DHAVE_S390X_VX. Les deux moitiés avaient raison : il fallait mesurer, pas
rustiner.

  gcc de l'hôte  --with-arch=z13 --with-tune=z16   défaut -march=arch11
  notre gcc      rien                              défaut -march=arch5

arch5, c'est z900, de l'an 2000. Le PKGBUILD d'Arch ne nomme aucune base s390x
puisque Arch n'a pas de s390x : le nôtre retombait sur la machine la plus
ancienne imaginable pendant que zlib détectait un processeur qu'on avait dit au
compilateur d'oublier. Toute distribution en choisit une ; ce portage ne l'avait
jamais dit, et le silence a choisi 2000.

z13 est ce qu'Ubuntu s390x exige déjà : rien qui tourne aujourd'hui ne cesse de
tourner. Posé aux deux endroits : makepkg.conf, comment cette distribution est
compilée, et le --with-arch de gcc, ce que suppose le compilateur qu'on livre.

Assisted-by: Claude Opus 5
2026-08-21 00:23:26 -04:00
..
audit.sh [FIX] four hooks the closure's second round needed 2026-08-19 06:24:11 -04:00
binutils.sh [ADD] port patches: gcc front ends, binutils gold, libtool multilib 2026-08-15 21:01:18 -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] s390x: say which machine this port targets 2026-08-21 00:23:26 -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
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
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.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