Bug#1055392: wasmedge: autopkgtest regression: 'cstdint' file not found

[Paul Gevers]

Hi Faidon,

On 05-11-2023 21:41, Faidon Liambotis wrote:
> Hi Paul,
> Thank you for your report. This is caused #1052002, which I had marked
> as affects: wasmedge previously.

Sorry for not checking that, but because you marked it as affecting the 
*binary* package wasmedge, it doesn't show up looking for bugs in the 
source package wasmedge (that may be a bts bug). Because this is a FTBFS 
issue, I recommend you to mark it affects src:wasmedge instead of wasmedge.

> I don't know how you'd like ot handle this w.r.t. the BTS, and testing
> migrations. I'm inclined to just reassign/merge it to the bug above, but
> I'll wait for your opinion first.

That's probably OK, I see you already did that.

> Also, I'm not sure I understand how clang migrated to testing when it
> introduced an autopkgtest regression in another package. Isn't
> autopkgtest integration in britney supposed to prevent this kind of
> thing from happening?

britney prevents this kind of things currently only for *direct* reverse 
(test) dependencies. In this case we have:

test/Depends: clang (from src:llvm-defaults) -> (Depends) clang-16

As I'm pretty sure you meant not clang, but one of the versioned clang 
packages, britney didn't see the breakage. There are multiple ways to 
improve this:
* britney should look at all transitive dependencies (we lack the 
resources and also not environmentally friendly)
* britney could be taught to translate (automatically or via 
configuration) "-defaults" packages to their real packages. This would 
be good for multiple ecosystems, patches welcome.
* Individual packages that are sensitive could use the 
`hint-testsuite-triggers` trick from the autopkgtest spec [1] and add 
the current real packages. That's a PITA to maintain though, and adding 
versions that you don't really test is wrong.

Paul

[1] 
https://salsa.debian.org/ci-team/autopkgtest/-/blob/master/doc/README.package-tests.rst
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