This is an ambitious but reasonable change. I am assuming OMSimulator does not mind supporting only the systems OpenModelica has support for. In which case, the oldest gcc version we are required to support is version 8.5. gcc-8.5 should have support for C++17. More specifically it should have support for the <filesystem> library which OMSimulator needs.
gccversion we are required to support is version 8.5.gcc-8.5should have support for C++17. More specifically it should have support for the<filesystem>library which OMSimulator needs.