I've spent quite some time on the repro builds again and I'm pretty much stuck still in qt configuration hell. It's horrible.

TheCharlatan: ./configure of qt?

what version?

And which platform?

Qt 5.12 would be ok

5.12 is EOL in 1 year

anyway, I have a ./configure for 5.15

we need Ubuntu 16.04 and macOS 10.12 support

I also would like 5.15 with automatic high dpi scaling

I'm going for 5.15

dsc_ can you share what you have somewhere?

selsta what is prohibiting a 5.15 qt build running on 16.04?

qt

apparently? it is not included in supported platforms

should still run though, right?

I don’t know.

I'll guess I find out then.

TheCharlatan: sure!

(And yes, 5.15 is ubuntu 18.04 and up)

TheCharlatan: paste.centos.org/view/raw/13f9445a <== This requires 2 external files: kitware.asc (CMake authors, so we can `apt install` latest cmake (3.18.*) and `Qt5.15_LinuxPatch.json` which can be found here: paste.centos.org/view/raw/c1847671 (the qtbase git patch is paste.centos.org/view/raw/d6f367f2)

Please note however that it's doing `-no-opengl`, as my Qt application doesn't need it

And because you're using a fairly recent CMake you can do `find_package(Qt5 REQUIRED COMPONENTS Core Widgets Gui Network Svg Xml WebSockets)` inside CMakeLists.txt

in `target_link_libraries` you'd do `Qt5::Core Qt5::Widgets Qt5::Gui` etc. Also `target_compile_definitions` and `target_include_directories`.

for static builds you may additionally need to link against `Qt5::FontDatabaseSupport Qt5::QSvgIconPlugin Qt5::QSvgPlugin`

IIRC Qt devs commit straight into CMake - so the reason we have complicated cmake stuff regarding Qt is because for old version support (correct me if I'm wrong)

Latest Qt 5.15 + CMake 3.18 comes with cmake recipes that are useful

Actually, I think those cmake files can be found in `qtbase` anyway .. -DCMAKE_PREFIX_PATH will find them.

thanks a lot. I'll see if one of those -skip 's might be helpful. AFAICT the problem I'm having is in a module we don't actually need.

Which one, and what is the error?

.merges