Comment 6 for bug 1813010

Hi; I'm going to close this bug because there's no way that QEMU's build process can handle being passed -save-temps via --extra-cflags, because this will cause GCC to use the same output files for multiple different source files, and they will clash. (Even with a non-parallel build, one compile is going to win, and the temp files for the first compile of the pair will just be overwritten and lost.)

As you've discovered, the right way to do this is to use -save-temps=obj, which will correctly put the temporary files in different places for each generated object file, so they don't conflict with each other.