nico wrote: (ps: For the 2nd answer on https://codegolf.stackexchange.com/questions/1956/generate-the-longest-error-message-in-c , on my system, the flag in this PR takes `bin/clang -c demo2.cc 2>&1 | wc -l` from 66 to 26!) https://github.com/llvm/llvm-project/pull/216250