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@if [ ! -f debian/copyright_hints ]; then touch debian/copyright_hints; fi
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@newstrings=`diff -u debian/copyright_hints debian/copyright_newhints | sed '1,2d' | egrep '^\+' - | sed 's/^\+//'`; \
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if [ -n "$$newstrings" ]; then \
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echo "To fix the situation please do the following:"; \
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echo " 1) Investigate the above changes and update debian/copyright as needed"; \
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echo " 2) Replace debian/copyright_hints with debian/copyright_newhints"; \