We do not need the --relative case as it is dead code (we only ever link
a filename without directory components).
For the rest, GNU-specific ln -T does two things:
- if the link name is an existing directory, ln fails instead of
creating a surprising link inside the directory
- if the link name is a symlink to a directory, ln treats it as a file,
and due to -f, unlinks it
The second case can be portably solved by ln -n, and both cases can be
solved by doing what the original autotools Makefile did: rm -f && ln -s
If the file exists, it will be removed. If it cannot be removed, it must
be an ordinary directory, and the script aborts with an error.
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
8fe5520709