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Groups > linux.debian.devel > #112127

Re: Enabling some -Werror=format* by default?

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* Helmut Grohne <helmut@subdivi.de> [2024-06-10 18:01]:
> Ideally, we'd not just do a rebuild with the flags, but also do a
> rebuild without and then compare the binary .debs. In the event that we
> misguide configure, we expect the .debs to differ and otherwise to equal
> due to the work of the reproducible builds folks. That equality has a
> really annoying difference in practice though: Build ids are dependent
> on the compiler flags, so the comparison would have to magically ignore
> changes in build id and this is where things become quite difficult.

Indeed build IDs can be a very annoying source of unreproducible builds (though
I mostly encounter those working with Android toolchains, not Debian packages).

But build IDs can be disabled via appropriate linker flags (e.g.
-Wl,--build-id=none).  Is there some reason simply doing that for both rebuilds
is not an option?

- Fay

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Thread

Enabling some -Werror=format* by default? Andrey Rakhmatullin <wrar@debian.org> - 2024-06-06 21:20 +0200
  Re: Enabling some -Werror=format* by default? Helmut Grohne <helmut@subdivi.de> - 2024-06-10 12:40 +0200
    Re: Enabling some -Werror=format* by default? Andrey Rakhmatullin <wrar@debian.org> - 2024-06-10 13:10 +0200
      Re: Enabling some -Werror=format* by default? Guillem Jover <guillem@debian.org> - 2024-06-10 16:30 +0200
        Re: Enabling some -Werror=format* by default? Andrey Rakhmatullin <wrar@debian.org> - 2024-06-10 17:10 +0200
          Re: Enabling some -Werror=format* by default? Guillem Jover <guillem@debian.org> - 2024-06-10 18:30 +0200
        Re: Enabling some -Werror=format* by default? Andrey Rakhmatullin <wrar@debian.org> - 2024-06-10 17:10 +0200
        Re: Enabling some -Werror=format* by default? Simon McVittie <smcv@debian.org> - 2024-06-10 17:10 +0200
      Re: Enabling some -Werror=format* by default? Helmut Grohne <helmut@subdivi.de> - 2024-06-10 18:30 +0200
        Re: Enabling some -Werror=format* by default? Fay Stegerman <flx@obfusk.net> - 2024-06-11 03:00 +0200
        Re: Enabling some -Werror=format* by default? Guillem Jover <guillem@debian.org> - 2024-06-11 12:10 +0200

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