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doc/packagaes/geant4: add documentation (#341733)

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Dmitry Kalinkin 2024-09-14 01:27:59 -04:00 committed by GitHub
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# Geant4 {#geant4}
[Geant4](https://www.geant4.org/) is a toolkit for simulating how particles pass through matter. It is available through the `geant4` package.
## Setup hook {#geant4-hook}
The setup hook included in the package applies the environment variables set by the [`geant4.sh` script](https://github.com/Geant4/geant4/blob/master/cmake/Modules/G4ConfigureGNUMakeHelpers.cmake#L4-L55), which is typically necessary for compiling `make`-based programs that depend on Geant4.
## Datasets {#geant4-datasets}
All of [the Geant4 datasets provided by CERN](https://geant4.web.cern.ch/support/download) are available through the `geant4.data` attrset.
### Setup hook {#geant4-datasets-hook}
The hook provided by the packages in `geant4.data` will set an appropriate environment variable in the form of `G4[...]DATA`. For example, for the `G4RadioactiveDecay` dataset, the `G4RADIOACTIVEDATA` environment variable is set to the value expected by Geant4.

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firefox.section.md
fish.section.md
fuse.section.md
geant4.section.md
ibus.section.md
kakoune.section.md
krita.section.md