try_mirror_url() creates a symlink named as the original file to make
everything look like files specified in SRC_URI were downloaded from
their original location. The link is however created as an absolute
reference, this makes DL_DIR non-relocatable. This also causes issues
with the Isar project since it bind mounts DL_DIR to /downloads to
perform some of its build tasks in a chrooted environment (rendering
all symbolic links from DL_DIR invalid). Modify ensure_symlink() to
take an optional "relative" argument and have that function use
os.path.relpath() to produce a relative symlink.
(Bitbake rev: 481e66ea8fc2fc91903127d66b0f1b0fe86baedb)
Signed-off-by: Cedric Hombourger <Cedric_Hombourger@mentor.com>
Cc: Chris Larson <Chris_Larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>