On Sun, 13 Feb 2022, at 01:16, Richard Shaw wrote:
Yeah, I had a few instances of that, but in this case it's not being used in logger.cxx. It appears the MinGW headers are conflicting with themselves and they don't seem to want to admit the problem or fix it.
That bug report you linked *was* caused by using namespace std; though. Have you checked all files included by logger.cxx?