Testing with clang + x86 and also g++ + arm (or whatever combination of compilers and architectures makes sense) also helps, and is easier than maintaining a po

Testing with clang + x86 and also g++ + arm (or whatever combination of compilers and architectures makes sense) also helps, and is easier than maintaining a port to a second OS. It usually finds less stuff than a port to a second operating system, but it's also usually less effort to set up.