tcl-tk@8 を Homebrew でインストール

プロジェクトリンク

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コマンドとエイリアス

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プロジェクトの歴史

The upstream history is the Tcl/Tk history: Tcl began as John Ousterhout's embeddable command language at Berkeley, with implementation starting in 1988, and Tk followed as a reusable GUI toolkit released publicly in 1991.

The official Tcl/Tk 8.6 page states that Tcl/Tk 8.6 was first released in 2012, that development ends in 2026, and that Tcl/Tk 9.0 became the successor release line in 2024.

Homebrew's tcl-tk@8 formula is therefore best understood as a compatibility package, not a separate upstream project.

採用の歴史

Tcl/Tk's early adoption came through Unix distribution, USENIX visibility, FTP source availability, Expect among system administrators, and Tk as a lower-effort way to build Unix GUIs.

The 8.6 line stayed important because many deployed Tcl scripts, Tk applications, extensions, and embedded interpreters were written against Tcl 8 behavior and APIs before the compatibility changes introduced by Tcl/Tk 9.

使われ方

Package-manager users choose tcl-tk@8 when a dependency expects Tcl/Tk 8.6, when older Tk applications need the legacy runtime, or when versioned executables such as tclsh8.6 and wish8.6 are required.

The official 8.6 page highlights bundled packages, TclOO, coroutine support, IPv6 sockets, zlib, PNG support in Tk, and other features that made 8.6 a long-lived stable baseline.

パッケージ好きにとっての重要性

This formula matters because versioned runtime packages are how package managers keep old build systems and GUI tools working while allowing the default formula to move to a new major release.

For dependency solvers and maintainers, Tcl/Tk 8 is the kind of legacy runtime where ABI expectations and executable names matter more than novelty.

タイムライン

• 1988: Tcl implementation began at Berkeley.
• 1991: Tk first Internet release.
• 2012: Tcl/Tk 8.6 first released.
• 2024: Tcl/Tk 9.0 became the successor release line.
• 2026: Official 8.6 page lists Tcl/Tk 8.6.18 and says 8.6 development ends in 2026.

Related projects

• The unversioned tcl-tk formula follows the current Tcl/Tk line.
• Tcl/Tk 9.0 is the successor major line; Tcllib, Tklib, Expect, TclOO, Thread, and TDBC are related Tcl ecosystem projects.

ソース

• https://core.tcl-lang.org/index.html
• https://www.tcl-lang.org/about/history.html
• https://www.tcl-lang.org/software/tcltk/8.6.html
• https://www.tcl-lang.org/software/tcltk/9.0.html