Re: [PATCH v4 3/4] setup: Add 'abspath_part_inside_repo' function

quoted

Another comment:
The "raw" comparison with '/' is probably working well on all
POSIX/Linux/Unix systems.

To be more portable, the macro
is_dir_sep()
can be used:

if (is_dir_sep(path[wtlen]))

Since the path is already normalized by 'normalize_path_copy_len' which
seems to guarantee '/'-separation, I have assumed that this was
unnecessary?

So true, sorry for the noise.