kou commented on code in PR #48148:
URL: https://github.com/apache/arrow/pull/48148#discussion_r3262346538
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dev/tasks/linux-packages/apt/build.sh:
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@@ -67,6 +84,13 @@ if which ccache > /dev/null 2>&1; then
debuild_options+=(--prepend-path=/usr/lib/ccache)
fi
fi
+# Use a fixed build directory name instead of mktemp's random suffix.
+# c_glib's meson generates pkgconfig files that bake the absolute
+# build-tree path into Libs.private, so a random suffix breaks
+# reproducibility across reprotest runs.
+build_dir="${build_root_dir}/package"
+run mkdir -p "${build_dir}"
+run pushd "${build_dir}"
Review Comment:
I want to keep using random build directory path because it's one of
important reproducible build checks. We can work on this as a follow-up task.
I'll take a look at Meson.
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