chore(webview): bump frozen Qt 5 toolchain to 5.15.19#3121
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- Rebuild pi2/pi3 armhf toolchain 5.15.14 -> 5.15.19 (latest 5.15 LTS) - Point qt5_toolchain_url at the WebView-v2026.07.0 release - Cap QtWebEngine's inner chromium ninja via NINJAFLAGS=-j$MAKE_CORES (make -j alone never bounded it -> box-wide OOMs) - Drop libre2-dev so chromium uses its vendored re2 (trixie re2 API break) - Replace gcc/g++-multilib (conflicts crossbuild-essential-armhf) with lib32gcc-14/lib32stdc++-14/libc6-dev-i386 for the -m32 V8 snapshot host - Add python3-html5lib for the catapult about_tracing vulcanize step Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Pull request overview
Routine maintenance update to the frozen Qt 5 (pi2/pi3 armhf) WebView toolchain, aligning the image build inputs and rebuild tooling with Qt 5.15.19 and Debian trixie build-environment changes.
Changes:
- Bump the pinned Qt 5 toolchain version/tag for pi2/pi3 builds (5.15.14 → 5.15.19;
WebView-v2026.04.1→WebView-v2026.07.0). - Update the Qt 5 toolchain rebuild container dependencies for trixie (remove
libre2-dev, replace multilib packages, addpython3-html5lib). - Reduce OOM risk during toolchain rebuilds by capping QtWebEngine’s inner ninja parallelism via
NINJAFLAGS.
Reviewed changes
Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| tools/image_builder/utils.py | Updates the Qt5 toolchain version and GitHub release URL used by pi2/pi3 viewer builds. |
| src/anthias_webview/README.md | Refreshes documentation to the new Qt5 toolchain release tag and tarball naming. |
| src/anthias_webview/Dockerfile | Adjusts trixie build dependencies (multilib approach, removes libre2-dev, adds python3-html5lib) and updates version references. |
| src/anthias_webview/build_qt5.sh | Bumps Qt patch version and exports NINJAFLAGS to bound Chromium’s ninja parallelism. |
| bin/rebuild_qt5_toolchain.sh | Updates artifact naming/version and adds buildx registry-cache usage + builder selection. |
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…026.07.0 Addresses Copilot review on #3121: the template's comments still cited the old WebView-v2026.04.1 tag. The download itself already uses the {{ qt5_toolchain_url }} / {{ qt_version }} context (verified: pi2 render resolves qt5-5.15.19-trixie-pi2.tar.gz from the WebView-v2026.07.0 release); this only aligns the surrounding comments. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Issues Fixed
None — routine maintenance bump of the frozen Qt 5 cross-compile toolchain used by the 32-bit Qt 5 Pi boards (pi2, pi3).
Description
Bumps the pi2/pi3 armhf Qt 5 toolchain from 5.15.14 → 5.15.19 (latest Qt 5.15 LTS patch). Qt 6 boards are untouched (they track trixie apt).
qt5_toolchain_urlat the newWebView-v2026.07.0release. The rebuiltqt5-5.15.19-trixie-{pi2,pi3}.tar.gz(+.sha256) are already attached there and verified end-to-end (download SHA matches), so pi2/pi3 image builds won't 404.ninjanever inheritedmake -j, flooding the host with ~nproccc1plus. Pin it withNINJAFLAGS=-j$MAKE_CORESsoMAKE_CORESactually bounds the RAM-heavy phase.libre2-dev(use chromium's vendored re2 — trixie re2 API break), swapgcc/g++-multilib(conflictscrossbuild-essential-armhf) forlib32gcc-14/lib32stdc++-14/libc6-dev-i386, addpython3-html5lib(catapult vulcanize step).Toolchain rebuild driven by
bin/rebuild_qt5_toolchain.sh; both boards built clean atMAKE_CORES=2with the ninja cap.Checklist