Merge branch 'ih/precompose-flex-array' into next

The UTF-8 precomposition wrapper on macOS has been updated to use a flexible array member to represent the name of a directory entry, preventing fortified libc checks from failing when the name is reallocated to be larger than 'NAME_MAX' bytes. * ih/precompose-flex-array: precompose_utf8: use a flex array for d_name