The libtiff5-alt-dev package is a transitional package that is going
to disappear soon. Please update your build dependency from
libtiff5-alt-dev to libtiff-dev, which is now an alias to
libtiff5-dev. Also, if you had previously added lintian overrides for
the rpath error caused by linking with libtiff5-alt-dev, you can
remove that override now.
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