Thank you both for your suggestions! Wolfgang, I am using ICC 2021.5.0 which as far as I know fully supports the C++17 standard, including the *std::filesystem* library. So who knows what is going on.
I tried including the flag -DDEAL_II_CXX_FLAGS="-lstdc++fs" but that still didn't work. The error message I am getting is CMakeFiles/example_step_83_release.dir/step-83/step-83.cc.o:step-83.cc:function Step83::CathodeRaySimulator<2>::checkpoint(): error: undefined reference to 'std::filesystem::__cxx11::path::_M_split_cmpts()' CMakeFiles/example_step_83_release.dir/step-83/step-83.cc.o:step-83.cc:function Step83::CathodeRaySimulator<2>::checkpoint(): error: undefined reference to 'std::filesystem::__cxx11::directory_iterator::directory_iterator(std::filesystem::__cxx11::path const&, std::filesystem::directory_options, std::error_code*)' CMakeFiles/example_step_83_release.dir/step-83/step-83.cc.o:step-83.cc:function Step83::CathodeRaySimulator<2>::checkpoint(): error: undefined reference to 'std::filesystem::__cxx11::directory_iterator::operator*() const' CMakeFiles/example_step_83_release.dir/step-83/step-83.cc.o:step-83.cc:function Step83::CathodeRaySimulator<2>::checkpoint(): error: undefined reference to 'std::filesystem::__cxx11::directory_iterator::operator++()' CMakeFiles/example_step_83_release.dir/step-83/step-83.cc.o:step-83.cc:function Step83::CathodeRaySimulator<2>::checkpoint(): error: undefined reference to 'std::filesystem::__cxx11::path::_M_split_cmpts()' CMakeFiles/example_step_83_release.dir/step-83/step-83.cc.o:step-83.cc:function Step83::CathodeRaySimulator<2>::checkpoint(): error: undefined reference to 'std::filesystem::__cxx11::path::_M_split_cmpts()' CMakeFiles/example_step_83_release.dir/step-83/step-83.cc.o:step-83.cc:function Step83::CathodeRaySimulator<2>::checkpoint(): error: undefined reference to 'std::filesystem::rename(std::filesystem::__cxx11::path const&, std::filesystem::__cxx11::path const&)' CMakeFiles/example_step_83_release.dir/step-83/step-83.cc.o:step-83.cc:function Step83::CathodeRaySimulator<2>::checkpoint(): error: undefined reference to 'std::filesystem::status(std::filesystem::__cxx11::path const&)' make[2]: *** [examples/CMakeFiles/example_step_83_release.dir/build.make:106: bin/step-83.release] Error 1 make[1]: *** [CMakeFiles/Makefile2:8634: examples/CMakeFiles/example_step_83_release.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs.... I will try going with -DDEAL_II_COMPILE_EXAMPLES=OFF. That should also make the build go faster. David On Thursday, February 6, 2025 at 11:27:11 AM UTC-5 Matthias Maier wrote: On Thu, Feb 6, 2025, at 09:40 CST, David Montiel <dmon...@umich.edu> wrote: > Can I do that without disabling the rest of the examples, as in > DEAL_II_COMPONENT_EXAMPLES=OFF? You can simply set -DDEAL_II_COMPILE_EXAMPLES=OFF and it will install the examples in source form only. We have removed compilation of example steps from the build system entirely in the current development version. Best, Matthias -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/dealii/cbe3e82c-4ca5-4a88-b12a-f178fe4a0e9fn%40googlegroups.com.
