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fbd63a93c3
On FreeBSD, use readdir instead of readdir_r readdir_r has the same problems on FreeBSD as it does on other platforms: it assumes a fixed NAME_MAX. And readdir has the same thread-safety guarantee as it does on other platforms: it's safe as long as only one thread tries to read from the directory stream at a given time. Furthermore, readdir_r is likely to be removed for FreeBSD 16, so we should stop using it now.