There was a mismatch of how we sanitized paths for dependencies of the
target and how those dependencies were sanitized (or not sanitized),
resulting in the target depending on 'some/path/foo.o' while the
extra compiler target was named 'some/path//foo.o', with an extra
slash. This confused 'make' enough to decide that it didn't know
how to build the dependencies for the target.
Change-Id: I181b86c291286cbbbb1f7b4c3b929a5f1dc163a3
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>