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メモ: macports-2.10.0でcargo-cのbuildに失敗し、格闘した件

Posted at

Issue

port
% port install cargo-c

のビルドの途中で止まってしまった。timeというコンポーネントのtime-0.3.21/time/src/format_description/parse/mod.rsというファイルのコンパイルエラー(rust)が原因で、このあたりこのあたりを踏んでしまっているようだ。

Solution

前述のリンクのバグレポートだと、最新版にバージョンアップで解決した、とある。なので最初に、

Portfile
% nl -ba ${macports_root}/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/devel/cargo-c/Portfile
...
   201      thread_local                     1.1.7  3fdd6f064ccff2d6567adcb3873ca630700f00b5ad3f060c25b5dcfd9a4ce152 \
   202      time                            0.3.21  8f3403384eaacbca9923fa06940178ac13e4edb725486d70e8e15881d0c836cc \
   203      time-core                        0.1.1  7300fbefb4dadc1af235a9cef3737cea692a9d97e1b9cbcd4ebdae6f8868e6fb \
...

の202行目を最新バージョン0.3.36とチェックサムに書き換えて試したが、他のバージョンとの依存関係が変わってしまってビルドできなかった。なので、

対処
% port clean --all cargo-c
% port -v -f patch cargo-c
% nano ${macport_root}/var/macports/build/*_devel_cargo-c/cargo-c/work/.home/.cargo/macports/time-0.3.21/src/format_description/parse/mod.rs
% port -v -f install cargo-c

として、portのビルドの途中で、ここに書かれている変更を反映させることで、ビルドできた。

time-0.3.21/src/format_description/parse/mod.rsの変更後
    66  /// Parse a sequence of items from the format description.
    67  ///
    68  /// The syntax for the format description can be found in [the
    69  /// book](https://time-rs.github.io/book/api/format-description.html). The version of the format
    70  /// description is provided as the const parameter.
    71  ///
    72  /// Unlike [`parse`], this function returns [`OwnedFormatItem`], which owns its contents. This means
    73  /// that there is no lifetime that needs to be handled. **It is recommended to use version 2.**
    74  ///
    75  /// [`OwnedFormatItem`]: crate::format_description::OwnedFormatItem
    76  pub fn parse_owned<const VERSION: usize>(
    77      s: &str,
    78  ) -> Result<crate::format_description::OwnedFormatItem, crate::error::InvalidFormatDescription> {
    79      validate_version!(VERSION);
    80      let mut lexed = lexer::lex::<VERSION>(s.as_bytes());
    81      let ast = ast::parse::<_, VERSION>(&mut lexed);
    82      let format_items = format_item::parse(ast);
    83      // let items = format_items
    84      //     .map(|res| res.map(Into::into))
    85      //     .collect::<Result<Box<_>, _>>()?;
    86      let items = format_items.collect::<Result<Box<_>, _>>()?;
    87      Ok(items.into())
    88  }
    89  
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