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Qt 6.12.0 - #406

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EnterTheArcane wants to merge 15 commits into
o3de:mainfrom
EnterTheArcane:qt-6.12.0
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Qt 6.12.0#406
EnterTheArcane wants to merge 15 commits into
o3de:mainfrom
EnterTheArcane:qt-6.12.0

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@EnterTheArcane

@EnterTheArcane EnterTheArcane commented Sep 30, 2026

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Builds on #402, but uses the v6.12.0 LTS

EnterTheArcane and others added 14 commits August 20, 2026 23:49
@EnterTheArcane
Update Qt to v6.11.2
e202543 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Remove Qt5
5bfbdf7 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Handle package list deletions in build workflow
67e703f 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Handle aliased zlib target in Qt configure
424c700 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Fix recursion-check qt patch
2c43843 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Build qt on all platforms with RelWithDebInfo
d50a166 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Use clang-18 for Linux builds
eb593e2 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Reduce qt6 install noise
296fe75 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Restore debug+release builds on Windows
653556a 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Switch linux and mac back to release only
9e90a48 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Add src_package_strip_top_level option
4199ae6 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane @spham-amzn
Update Scripts/extras/archive_downloader.py
527260b 
Co-authored-by: Steve Pham <82231385+spham-amzn@users.noreply.github.com>
Signed-off-by: Arbiter <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Update Qt README
7d425b0 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
@EnterTheArcane
Update Qt to v6.12.0
7c59d85 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>
nickschuetz added a commit to nickschuetz/o3de-rpm that referenced this pull request Oct 7, 2026
@nickschuetz
chore(deps): re-baseline the Qt and PySide rev watch to 6.11.2
04d85e1 
development moved to qt-6.11.2-rev1 and pyside6-6.11.2-py3.10-rev1 in
o3de/o3de#20085. o3de-development build 11085600 is green on all four chroots
against them: lrelease is staged with a $ORIGIN runtime path, the shiboken6 /
libshiboken6 / libpyside6 rpaths needed no cleanup, check-rpaths passed, and
the wayland-devel BuildRequires still satisfies WaylandClient. Build-time
verification only. Moving the baselines re-arms the tripwire for the next bump
(Qt 6.12.0 is in review as o3de/3p-package-source#406).
@nickschuetz

nickschuetz commented Oct 19, 2026

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Thanks for putting this together. Two small Linux suggestions while the build options are being reworked, both from testing 26.10 on Fedora:

  1. JPEG: could -qt-libjpeg go next to -qt-webp? In the qt-6.12.0-rev1-linux package from this PR's CI run, libqjpeg.so still links libjpeg.so.8 (as rev8 does), which Fedora does not ship, so Qt silently loses JPEG and .jpg textures fail in Asset Processor ([26.10 stabilization] Project manager background issue o3de#20213). The TIFF half is already fixed here: that package's libqtiff.so no longer needs an external libtiff.

  2. Platform/Linux/Qt_linux.cmake adds WaylandClient to the required components for every project, so configuring any project needs the Wayland dev packages installed. The engine only links Qt6::WaylandClient when PAL_TRAIT_LINUX_WINDOW_MANAGER_WAYLAND is on (Code/Editor/Platform/Linux/editor_lib_linux.cmake), so it could be requested as an optional component instead.

Happy to test a build of this on Fedora 44.

This was referenced Oct 19, 2026
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@EnterTheArcane
Fix Qt JPEG and Wayland dependencies on Linux
5114288 
Signed-off-by: EnterTheArcane <96613937+EnterTheArcane@users.noreply.github.com>

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@spham-amzn spham-amzn Awaiting requested review from spham-amzn

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