After some forum search, the workaround is horrible: *do not use Intel compiler* for Deal.II.
PETSc and SLEPc compile and link just fine, but as it happens, the linking phase with Intel and Xcode is quite messy, and they do not support Xcode 11 or macOS Catalina, but hopefully, they will in the future. References: - Don't update to Catalina: https://software.intel.com/en-us/forums/intel-c-compiler/topic/816792 - String link error: https://software.intel.com/en-us/forums/intel-c-compiler/topic/840104 - Using icpc's sysroot does not help: https://software.intel.com/en-us/forums/intel-c-compiler/topic/840120 -- 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 on the web visit https://groups.google.com/d/msgid/dealii/a61cbb75-d433-4baf-aa1a-92fe793f607d%40googlegroups.com.
