[Pkg-electronics-devel] Bug#911965: kicad: Add libngspice to dependancy list

[Carsten Schoenert]

Hello Felix,

Am 26.10.18 um 21:12 schrieb Felix Salfelder:
> It seems to me that kicad does not link against ngspice, but rather
> dlopens the shared library on demand.

that's correct, so dh_shlibdeps won't detect the needed library
automatically.

> While the reasons are probably different, this approach is very similar
> to how gnucap-python uses libgnucap. The issue is related to the
> SONAME and file name used in lib${simulator}0 vs lib${simulator}-dev.
> 
> Probably the approach used in gnucap-python will work here as well:
> - find the SONAME in ./configure, tweak the dlopen call, see [1],
> - tweak d/rules: link a dummy executable, inject shlibdeps [2].
> 
> I am curious if there is a better way..

The dlopen call is currently searching for libngspice.so instead of
libngspice.so.0 so your suggestion would not solve all problems. As
Stefan Brüns has the same problem within the OBS he provided a small fix
up patch which I just did picked up. So now eeschema is looking for
libngspice.so.0. For now I can live with a manually adjusted Depends
field for the kicad package. I believe upstream will fix this all so the
dlopen call can get removed at least for the Linux builds in the future,
but maybe not not for the 5.x series.

-- 
Regards
Carsten Schoenert