Re: [PATCH -v2 1/2] build: union: Add create-all-directories? parameter to union-build

[Danny Milosavljevic]

>  "Build in the OUTPUT directory a symlink tree that is the union of all
>   the INPUTS.  As a special case, if CREATE-ALL-DIRECTORIES?, creates
>   the direct subdirectories in the output directory to make sure the
>   user can add to them later."

Or without "direct" if it's intended to do it recursively.