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Produce the *_gnu import libraries more deterministically #1967

Merged
merged 2 commits into from Aug 22, 2022
Merged

Produce the *_gnu import libraries more deterministically #1967

merged 2 commits into from Aug 22, 2022

Commits on Aug 17, 2022

  1. Avoid timestamps in the *_gnu import libraries 

    Dlltool unfortunately doesn't default to a deterministic output like
e.g. ar, and doesn't have a flag to enable it. Ar's MRI mode also
doesn't rewrite timestamps from the libraries it merges so the best
we can do as a workaround is to use objcopy, which does rewrite
timestamps, but touches nothing else.

Ironically, running objcopy for each intermedia library adds less
overhead than once at the end.
    @glandium
    glandium committed Aug 17, 2022
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  2. Ensure stable file prefixes in the *_gnu import libraries 

    For some reason, the import libraries currently in the repository don't
match what running the tool_gnu command produces, due to the use of
different prefixes. This adjusts the command to produce the same
prefixes as the ones currently in the import libraries from the
repository.
    @glandium
    glandium committed Aug 17, 2022
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