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Fix several problems with Errno aliases #1452

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merged 3 commits into from
Jun 13, 2021
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@asomers asomers commented Jun 13, 2021

  • Add Errno::EOPNOTSUPP to FreeBSD, where it is missing
  • Errno aliases are now associated consts of the Errno type
  • Remove Errno consts from platforms where they aren't defined

Previously these were aliases for UnknownErrno.  Now, they're compile
errors.
Previously they had to be consts in the errno module, because associated
consts weren't supported until Rust 1.20.0.  Now that they're associated
consts, they can be used interchangeably with regular Errno enum
variants.
@asomers asomers merged commit af2ee71 into nix-rust:master Jun 13, 2021
@asomers asomers deleted the errno-values branch June 13, 2021 00:52
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