Compiling Geant4 with Qt5

Recording, Visualizing and Persisting Data
#1

Hi,

I’m trying to compile Geant4 (4.10.06.p1) with the Qt5 flag enabled on a Mac (Catalina 10.15.3). With brew, I’ve installed the latest Qt package (5.14.1). It fails as it is looking for a Qt3.xx or Qt4.xx. I cannot revert back to Qt4.xx (it doesn’t work on my OS). Is there any way to still make this work?

Cheers,
Johan

#2

Hi Johan

You have to point to your Qt5 installation. For example

-DGEANT4_USE_QT=ON
-DQT_QMAKE_EXECUTABLE=~/Qt/Qt5.14.1/5.14.1/clang_64/bin/qmake
-DCMAKE_PREFIX_PATH="~/Qt/Qt5.14.1/5.14.1/clang_64 \

See Installation Guide.

John

#3

That was very useful, thank you.
Actually, What I did was:

cmake -DGEANT4_USE_QT=ON -DQT_QMAKE_EXECUTABLE=/Applications/Qt/5.15.1/clang_64/bin/qmake -DCMAKE_PREFIX_PATH="/Applications/Qt/5.15.1/clang_64:/Applications/Qt/5.15.1/clang_64/lib" .
make
make install

Also, following the suggestion in: https://www.scm.com/doc/Installation/Remote_GUI.html,

defaults write org.macosforge.xquartz.X11 enable_iglx -bool true

and restart xquartz.