Add missing header that causes trouble for clang 16.
Add missing header that causes trouble for clang 16.
Reported as Issue #31 (closed)
I have not observed the error myself. I have a Docker pipeline for testing clang 14 in Ubuntu Jammy, but I can't find clang 16 in the Docker repositories. Adding a "clang 16" to our internal build rules would be tedious. So, there might be other problems.
The fix is completely safe, though. For reasons of general paranoia I am still going to wait for out internal build pipelines to complete before I complete this request.