pub const ENOTSUP: usize = 95;Expand description
Not supported (operation not supported by this filesystem/device).
Aligned with Linux x86_64 where ENOTSUP == EOPNOTSUPP == 95, so that
musl/relibc shims map 1:1. (Was wrongly 52 until 2026-08 : see
docs-site/src/testing-findings.md F6.)