https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101867
--- Comment #9 from cqwrteur <unlvsur at live dot com> --- (In reply to Jonathan Wakely from comment #7) > Right, you need to use --with-avr https://github.com/gcc-mirror/gcc/commit/75aee072696a711f3e5b3bd1ab1f2b10fef4c7dd#diff-304a8fc076ccc48dd33f53a740ca6860dac5fafedeaa2d51aa9a17f3947b74c8 How to use stdio_pure as implementation? Since avrlibc does not provide posix fd.
