https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254138
--- Comment #3 from Ed Maste <ema...@freebsd.org> --- I observed this with catch2: $ git clone https://github.com/catchorg/Catch2 $ cd Catch2 $ mkdir build $ cd build $ cmake -GNinja -DCMAKE_CXX_STANDARD= .. -- The CXX compiler identification is Clang 11.0.1 -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done Abort trap (core dumped) -- You are receiving this mail because: You are the assignee for the bug.