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Oleg Grenrus authored
- Don't accept leading zeros in Version or VersionRange - Fixes https://github.com/haskell/cabal/issues/163 (pkg-config uses a more general version scheme) - Also resolves https://github.com/haskell/cabal/issues/5138 - `PkgconfigVersion` is compared with `rpmvercmp` - `PkgconfigVersionRange` is subset of `VersionRange` - with `cabal-version` before 3.0 it's parsed like `VersionRange`, where version digits are arbitrary integral (leading spaces allowed) - starting from cabal spec 3.0 `== x.y.*` and `^>=` (and set `{ .. }`) are disallowed. Yet, the version literals syntax is relaxed to accept alphanumerical + `-.` strings. E.g. openssl's `1.1.0h` is accepted. - Lax `PkgconfigVersion` parser is also used to parse `pkg-config --modversion` output.
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