0.16.0: rules-qt relies on mcpp 2026.9.27.1 -- the host row carries the Linux C++ runtime, and a package with no Qt source gets no synthesised program - #36
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…he Linux C++ runtime, and a package with no Qt source gets no synthesised program - rules-qt's engine floor is 2026.9.27.1. The Qt fixtures state `cxx_runtime = "toolchain-coupled"` in their Linux host rows, `[target.x86_64-linux-gnu]` and `[target.aarch64-linux-gnu]`, instead of project-wide in `[build]`: a plain `mcpp build` now applies the host's own row (mcpp#704). macOS and the MSVC ABI keep mcpp's default, as before. - compile() no longer carries the 0.15.2 branch that silenced the missing-SDK report in a synthesised program with no Qt source: the engine synthesises no program for such a package (mcpp#715). The qt-import-only criterion asserts exactly that -- no build program runs and nothing reports a missing SDK. - docs/rules-qt.md and the README state the floor and both behaviours. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The release 0.16.0's rules-qt is written against: the host row carries the Qt fixtures' Linux C++ runtime (mcpp#704), and qt-import-only asserts that no build program is synthesised for a package with no Qt source (mcpp#715). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…tem plan with its execution record Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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mcpp:plugins 0.16.0 (mcpp-community/mcpp-plugins#36), latest in the three platform tables. The GitHub tag archive and the GitCode mirror mcpp-res/mcpp-plugins are byte-identical, sha256 d54f9172...e146.
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Summary
mcpp:plugins 0.16.0 builds on mcpp 2026.9.27.1 (mcpp-community/mcpp#719). The engine floor of
rules-qtrises, which is why this is a minor release.cxx_runtime = "toolchain-coupled"in[target.x86_64-linux-gnu]and[target.aarch64-linux-gnu]instead of project-wide in[build]; a plainmcpp buildnow applies the host's own row. macOS and the MSVC ABI keep mcpp's default, as before.rules::qt::compile()drops the 0.15.2 branch that silenced the missing-SDK report in a synthesised program with no Qt source: the engine no longer synthesises a program for such a package.qt-import-onlyasserts exactly that: no build program runs and nothing reports a missing SDK.docs/rules-qt.mdand the README state the new floor and both behaviours..agents/docs/2026-09-27-mcpp-2026.9.27.1-ecosystem-plan.md(the cross-repository plan and its execution record) and.agents/docs/2026-09-27-galtranslpp-upstream-vs-pr2-outlook.md.Verification
check-deps-and-qt.shpass with the mcpp 2026.9.27.1 candidate.--profile devincheck-deps-and-qt.shstays: it makes the second build plan on every host, which strengthens the "no reinstall" criterion rather than working around #705.