Hello Carsten, Hello Victor, first of all: Thank you so much for your advice!
I cloned the sources from Gerrit’s repo and compared it to the master branch that I had fetched from Sourceforge before: these are identical (apart from one little typo in a source file that was corrected on Sourceforge). I did not fetch the sources from Victor’s repo so far, because in the meantime I was successful to compile the Sourceforge version of OpenSG. Next step will be to compile some older applications based on OpenSG 2.0 which we want to keep running after the migration to Ubuntu 20.0, and test them. Here’s some information on dependencies I used: * We had Boost 1.58.0 in use with OpenSG 2.0 under Ubuntu 16.04 for quite some time, although Boost 1.44 seems to be the recommended version. I kept 1.58.0 also for the new installation * Newer Versions of opennurbs caused problems, so I used the old sources and recompiled them. This was version 5.0.20130711. * The Ubuntu repo contains a version of qhull (2015.2) which does not seem to be suitable, I left it away * The collada version from the Ubuntu repo seems to be o.k (version 2.4). As we don’t have any applications with Collada data, we may never get feedback if this is really working. Would be interesting to know if the version in the cpp17 branch of Sourceforge has any API changes and if it would be “ready to use” or in an experimental state. Best Regards Jutta Von: Victor Haefner <victor.haef...@gmail.com> Gesendet: Dienstag, 16. Februar 2021 22:24 An: opensg-users@lists.sourceforge.net Betreff: Re: [Opensg-users] Installation of OpenSG on Ubuntu 20.04 Hello Jutta, I would normally have a Ubuntu 20.04 port if I wasn't busy with the windows port of our VR engine, hopefully I will soon find the time to check out 20.04.. I usually get the OpenSG source from Gerrit's repo on Github https://github.com/vossg/OpenSGDevMaster or my fork of it: https://github.com/Victor-Haefner/OpenSGDevMaster I have a packaging repo for my engine, also with OpenSG, should work for Ubuntu 18.04, until I get the time to build for Ubuntu 20.04 https://github.com/Victor-Haefner/polyvr-packaging There you can find shell scripts to compile Collada or OpenSG using CMake I also scrap together a debian package I put in https://github.com/Victor-Haefner/polyvr-depends There you can also find the list of ubuntu packages I install as well as a Collada package I am skipping a few optional dependencies when building OpenSG, but maybe it might help a bit.. best regards, Victor On Wed, Feb 3, 2021 at 3:48 PM Dreer, Jutta <jutta.dr...@lrz.de<mailto:jutta.dr...@lrz.de>> wrote: Dear OpenSG experts, we had an installation of OpenSG 2.0 under Ubuntu 16.04 for quite some time. Now a migration to Ubuntu 20.04 is being planned. I would like to compile and install OpenSG 2.0 again, but I would like to use as many dependencies as possible from the Ubuntu repository. Unfortunatelly there is not much activity on OpenSG any more as it seems. It seems that my choices are: - take the old source, which are a commit from February 2017 from www.opensg.org<http://www.opensg.org> (which does not exist anymore) - use the master branch from sourceforge.net<http://sourceforge.net> which seems to be more recent - use the cpp17 branch from sourceforge.net<http://sourceforge.net> which might be more suitable for a more recent Gnu compiler (gcc-9), but is this kind of experimental ? I would be grateful for any hint on experiences with an installation on some "new" Linux, and also for information on which of the dependency libs really need to be the one from the support directory or could be replaced by the system standard version. (a new boost version is certainly not a good idea ... but how about the others?) Thanks for any information. Best Regards Jutta Dreer _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net<mailto:Opensg-users@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/opensg-users
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