From: Stefan Weil <[email protected]> Some versions declare open_by_handle_at, but don't define AT_EMPTY_PATH. Extend the check in configure to test both preconditions.
Signed-off-by: Stefan Weil <[email protected]> Acked-by: Stefano Stabellini <[email protected]> Acked-by: Serge Hallyn <[email protected]> --- configure | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/configure b/configure index 268ed21..72d16a4 100755 --- a/configure +++ b/configure @@ -2811,7 +2811,11 @@ fi open_by_hande_at=no cat > $TMPC << EOF #include <fcntl.h> +#if !defined(AT_EMPTY_PATH) +# error missing definition +#else int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); } +#endif EOF if compile_prog "" "" ; then open_by_handle_at=yes -- 1.7.4.1
