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Faraz Vahedi
296c05f721
stringf.cc uses errno and related macros without including <cerrno>. Their availability is guaranteed only when the corresponding header is included; transitive exposure is implementation-defined. Modern libc++ has been progressively reducing incidental transitive includes as part of its header removal policy (see LLVM libc++ Header Removal Policy and D132284), making such dependencies brittle. This change includes <cerrno> explicitly to make the dependency well-defined. No functional or behavioural change intended. Approved by: fuz Signed-off-by: Faraz Vahedi <[email protected]> Pull-Request: https://github.com/freebsd/freebsd-src/pull/2188