I've done a bit of digging. According to ldd, the desired version is
appropriate, just specifying the first digit of the version info:
libngspice.so.0 => /lib64/libngspice.so.0 (0x00007f70913de000)
However, according to eeschema_kiface.dir/build.make we have
-DNGSPICE_DLL_FILE=\"libngspice.so.0.0.1\" as shown in this excerpt:
cd /builddir/build/BUILD/kicad-5.1.10/x86_64-redhat-linux-gnu/eeschema && /usr/bin/g++
$(CXX_DEFINES) -DNGSPICE_DLL_FILE=\"libngspice.so.0.0.1\" $(CXX_INCLUDES) $(CXX_FLAGS)
-MD -MT eeschema/CMakeFiles/eeschema_kiface.dir/sim/ngspice.cpp.o -MF
CMakeFiles/eeschema_kiface.dir/sim/ngspice.cpp.o.d -o
CMakeFiles/eeschema_kiface.dir/sim/ngspice.cpp.o -c
/builddir/build/BUILD/kicad-5.1.10/eeschema/sim/ngspice.cpp
Since eeschema/sim/ngspice.cpp explicitly uses the NGSPICE_DLL_FILE variable to
load the DLL, that is apparently why the more general ldd version is not used.
eeschema/sim/ngspice.cpp: m_dll.Load( NGSPICE_DLL_FILE );
So it seems the fix would be to truncate NGSPICE_DLL_FILE to remove the MAJOR.MINOR
component and just have -DNGSPICE_DLL_FILE=\"libngspice.so.0\"
Steve
On 8/23/21 10:29 AM, Steven A. Falco wrote:
I just got a bug report for the official Fedora version of KiCAD stating that
ngspice was not found. An attempt to perform a simulation results in KiCAD
crashing.
The Fedora KiCAD package specifies libngspice.so.0.0.0, but the library has now
bumped to libngspice.so.0.0.1. I would have expected that to be fine, because
the new library should be compatible. But apparently, the loader is looking
for an exact match, and refuses to use the newer library.
For now, I'm rebuilding the official package to match the new ngspice library,
but I'm wondering if there is a way to improve this situation, such that KiCAD
links with libngspice.0 rather than insisting on an exact match of the minor
number.
Steve
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