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This is a step towards eliminating $(HOST_DIR)/usr. It allows us to convert all packages installing things into $(HOST_DIR)/usr/lib without affecting the rest. To allow compatibility with packages that still use $(HOST_DIR)/usr as the prefix, create a symlink from usr/lib to ../lib. Note that the symlink creation will break when $(HOST_DIR)/usr/lib already exists as a directory, i.e. when rebuilding in an existing output directory. This is necessary: if we don't break it now, the following commits (which remove the usr part from various variables) _will_ break it. At the same time as creating this symlink, we also have to update the check-host-rpath script to accept both $(HOST_DIR)/usr/lib and $(HOST_DIR)/lib, because depending on how the package derives the path, it may be different. Since there are some dependency chains that involve $(STAGING_DIR), $(STAGING_DIR) may in fact be created before $(HOST_DIR). Since $(STAGING_DIR) is a subdirectory of $(HOST_DIR), it is possible that the newly added rule for $(HOST_DIR) never triggers. To make sure that the rule does trigger, add an order-only dependency from $(STAGING_DIR) to $(HOST_DIR). Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Reviewed-by: Romain Naour <romain.naour@smile.fr> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>