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Here is my [pr](https://github.com/MiSo1289/asiochan/pull/11) for
upstream. There has been no response for one week, so I think the
upstream is not maintained. So I decide change the repo to my fork. If
the author resume, I will switch back.
- [x] Changes comply with the [maintainer
guide](https://github.com/microsoft/vcpkg-docs/blob/main/vcpkg/contributing/maintainer-guide.md).
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- [x] The version database is fixed by rerunning `./vcpkg x-add-version
--all` and committing the result.
- [x] Only one version is added to each modified port's versions file.
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- [ ] Changes comply with the [maintainer
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