On Thu, 13 Nov 2025 19:53:50 +0100,
Sebastian Benoit <benno@openbsd.org> wrote:
> 
> Hi,
> 
> i'm trying to make a package for geant4, https://geant4.web.cern.ch/
> 
> I have a couple of things where i need some guidance:
> 
> (1) its in essence a library that allows one to build ones own applications.
> But unfortunatly many user-applications out there do not compile against
> the latest version of geant4, for various reasons.
> Its basically common that an user-application lags behind, and it should be possible to
> install multiple versions in parallel. I use two myseld, one needs
> geant4-10.7.4 and the other is ahppy with 11.x.
> 
> It installs into <prefix>/bin, include, lib, and share.
> For now i picked /usr/local/geant4-10.7.4 as prefix for trying it out.
> 

Maybe use /usr/local/libexec/geant4/<version> ?

But tricky part is how to supply the path for cmake/pkg_config.


> (2) The system needs datasets that describe physical processes. These
> are static files, the original installer tries to download these.
> Obviously i want to download them earlier, during the fetch phase? And
> then install them later. How do we typically hand such situations? Is
> there an exmaple in ports? 
> 
> https://geant4.web.cern.ch/download/11.3.2.html
> https://geant4.web.cern.ch/download/10.7.4.html
>

Datasets looks "independed" from library version.

Maybe approach similar with pari-data is that you're looking for?

> WANTLIB =
> WANTLIB +=	${COMPILER_LIBCXX} GL ICE SM X11 Xext Xm
> WANTLIB +=	Xmu Xt expat m xerces-c z
> 

Just read, not tried: any reason to has first WANTLIB?


-- 
wbr, Kirill