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Hash: SHA1
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Hi,
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I put together an ebuild for geant-4.9.1 over the weekend.
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Geant[3,4] is a widely used physics simulation code from cern; 3.* is in
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the tree, 4.* is not, which is bad (for some). Even debian users can
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have geant4 ...
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This ebuild seems to work on x86 using the g** compilers. You can find
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it temporarily at rsync://netronaut.de/geant4. There are ebuilds for
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geant4 and for the needed data files (pulled in via "data" USE flag).
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There are also 2 patches to make the build and environment scripts work.
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As it depends on sci-physics/chlep from the science overlay I am only
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advertising here.
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Since this is my first ebuild for the public and the geant4 install is
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extra nasty I would love to have suggestions for improvements,
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flames ... I am particularly interested in suggestions concerning
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1) Ebuild
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* no checking of CFLAGS and MAKEOPTS:
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Is it too bad? I have no idea ...
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* relying solely on Geant4 ./Configure to figure out
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platform/compiler:
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Maybe somebody on a different platform or with a different
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compiler can tell me if the build is still working.
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* name:
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Now its a newer version of sci-physics/geant-3.*.* currently in the
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tree, maybe causing trouble.
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* License: Geant4 license not in /usr/portage/license; not sure about
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licenses for data files, but one could ask ...
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* USE: I have no idea how to switch some of them on by default ...
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2) Geant4 infrastructure
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* do your projects compile and run successfully?
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* geant and geant4-data install lots of stuff like data files, config
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scripts, example apps into /usr/share/geant4. Is this the right
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place? Is it working for your use case?
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* even worse: libraries are installed
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into /usr/lib/geant4/<platform><compiler>/. This is how geant4 does
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it by default. No versions are recorded. No archives are installed.
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How much does this violate gentoo policy? Do you need the
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archives? How much would another solution break your application?
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I would really really (really) love to have this package in gentoo,
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maybe in the science overlay: geant4's build system is painful and
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scary, but portage can conveniently hide all that once and forever ;)
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Hope to hear from you,
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b.
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ps. If you start playing with the compile you should use ccache. I can
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dispel some of the builds darkness ...
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- --
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"If we had asked people what they wanted they would have said 'a
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faster horse'." --Henry Ford
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