42 lines
2 KiB
Bash
42 lines
2 KiB
Bash
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#!/usr/bin/env bash
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# lz4: bare `meson setup`, so libdir lands on the Debian multiarch path.
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#
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# This PKGBUILD calls meson directly -- not arch-meson -- so nothing supplies
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# --libdir and meson falls back to default_libdir(), which asks the HOST
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# where libraries go. On this Debian-flavoured builder the answer comes from
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# dpkg-architecture -qDEB_HOST_MULTIARCH, i.e. lib/s390x-linux-gnu. The
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# package built, exited 0, and shipped:
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#
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# usr/lib/s390x-linux-gnu/liblz4.so.1.10.0
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# usr/lib/s390x-linux-gnu/pkgconfig/liblz4.pc
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#
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# Arch's ld.so and pkgconf only read /usr/lib, so on the target every consumer
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# fails to link and `pkg-config liblz4` finds nothing -- while the PKGBUILD
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# still declares provides=('liblz4.so'), a promise the artefact does not keep.
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# The binaries in usr/bin work, which is exactly what makes it look fine.
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#
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# The damage is twofold: liblz4.pc is not merely in the wrong directory, its
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# body also reads libdir=${prefix}/lib/s390x-linux-gnu, so relocating the file
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# would not have been enough. Setting libdir fixes both at once.
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#
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# Anchor on "meson setup", NOT on "meson": build() also runs meson configure
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# and meson compile, package() runs meson install, and check() runs
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# build/meson/programs/lz4 -- a PATH containing the word. There is exactly one
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# setup, asserted below.
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#
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# --libdir survives the later `meson configure`, which only rewrites the
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# options it is handed (-Dcontrib -Dexamples -Dprograms).
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set -euo pipefail
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python3 - <<'PY'
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import io
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s = io.open("PKGBUILD", encoding="utf-8").read()
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old = "meson setup --prefix=/usr --buildtype=plain"
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n = s.count(old)
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assert n == 1, "lz4: expected exactly 1 meson setup, found %d" % n
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s = s.replace(old, "meson setup --prefix=/usr --libdir=lib --buildtype=plain", 1)
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io.open("PKGBUILD", "w", encoding="utf-8").write(s)
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PY
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[ "$(grep -c -- '--libdir=lib' PKGBUILD)" = 1 ] || {
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echo "lz4: --libdir=lib not applied exactly once" >&2; exit 1; }
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echo "lz4: meson libdir pinned to lib (host default is lib/s390x-linux-gnu)"
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