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Alessandro Rubini authored
The should pick other repositories from ../ only if both use and them are submodules of ../ . Only checking that ../zio is a directory is not enough, because it can be a separate clone (old version, for example) or worse an intermediate directory that doesn't host headers. A user reported painful build errors for this reason. Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
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