Hi Carsten, On 10/27/18 12:12 AM, Carsten Schoenert wrote: > Hello Orson, > > Am 26.10.18 um 22:30 schrieb Maciej Suminski: >> What about libngspice.so.0 symlink? Which package ships that? Anyway, it >> makes sense to request a particular version of the library in case the >> API changes in the future. > > Simon already has written some more technical explanation but to answer > your question here in detail, libspice.so.0 is provided (for the reason > Simon mentioned) in the plain library package in Debian, and this is > libngspice0. > > https://packages.debian.org/sid/amd64/libngspice0/filelist > >>> So looking manually at the binaries build from the kicad source by ldd I >>> can see a lot linked libraries but no library libngspice.so.0! Seems the >>> library is simply opened by dlopen. So that's the reason why the >>> packaging isn't adding a dependency on the package libngspice0. >> >> You are correct. The library used to be linked with eeschema, but we >> have faced problems that could be resolved only by reloading the >> library. I am afraid it has to stay this way for the time being. > > As a potential step into the right direction it would be good if > eeschema would search for libngspice.so.0 on Linux platforms. I can then > add a manual dependency on the library package instead on the -dev > package (which is gladly for ngspice rather small compared to other -dev > packages).
Done, courtesy of Stefan who provided the patch. > nsgpice and especially the upstream packaging did from a Debain POV > really big steps forwards and I'm really happy that Holger from the > upstream team was really responsive to my questions and suggestions in > the past year! Without this it wouldn't be possible that KiCad in Debian > can now use ngspice from Debian main! > > So far I know Holger is also reading on this list, so I suggest to get > in contact with Holger Vogt about the problems you have or had in the > past. I'm quite sure Holger is willing to improve the situation if possible. I know that Holger has already helped us a few times with ngspice support, I appreciate that. If I recall correctly, the issue has been discussed on forum.kicad.info, but indeed deserves a separate bug report with a minimal example. In any case, we still need to keep the current approach until the fix is available in packages, meaning it will take time. Even then I would rather stay on the safe path and let us recover from errors by reloading the library. Cheers, Orson
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