speth
commented
9 months ago I notice in your cantera.conf you have extra_lib_dirs = '$CONDA_PREFIX/lib'. But do you also have extra_inc_dirs = '$CONDA_PREFIX/include'? If not, I'm not sure where the compilation process is finding the headers, and mixing headers from one location with libraries for another would certainly explain segfaults.
Searching for the type mentioned in the segfault, std::filesystem::path::_Cmpt leads me to the following StackOverflow post, which seems very relevant: https://stackoverflow.com/questions/56615841/passing-stdfilesystempath-to-a-function-segfaults -- it seems that G++ 8.x uses a separate library to provide std::filesystem, a quirk that has been removed in more recent versions. Our testing is limited to GCC 9 and newer, as noted in the build requirements.
CharlelieLrt
Problem description
Cannot build cantera from source on Power PC 9 architecture using either conda or cantera's submodules. Getting either an undefined symbol from a linked library, or a segmentation error.
Steps to reproduce
I am attempting to build cantera from source on a power PC 9 system. I am working in a conda environment, created with the following config:
Cantera 3.0 is built from source using the following scons config:
Note that this is using conda's provided packages for yaml-cpp, fmt, eigen, sundials, blas and lapack.
After the built completes, running
import canterain python gives an undefined symbol error related toYAML::Emitter::Write(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)from the library.conda/envs/kinetics/lib/libyaml-cpp.so.0.7. I checked and this version of yaml-cpp (v0.7) does not define this symbol. Older versions of yam-cpp (e.g. v5.0) do define the missing symbol.I therefore decided to use cantera's Git submodule for yaml-cpp, instead of the one provided by conda. After doing so, I am getting a new undefined symbol, but this time related to the symbol
fmt::v9::vformat(fmt::v9::basic_string_view<char>, fmt::v9::basic_format_args<fmt::v9::basic_format_context<fmt::v9::appender, char> >)from the library.conda/envs/kinetics/lib/libfmt.so.9. Once again I checked and fmt-cpp v9 does not define this symbol.So I once again decided to use cantera's submodule for
fmt-cppinstead of the one provided by conda. After rebuilding cantera, I am able to runimport canterafrom a python script. However, running a python test gives me a segmentation error:System information