10 lines
228 B
Diff
10 lines
228 B
Diff
--- a/boost/signals2/trackable.hpp
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+++ b/boost/signals2/trackable.hpp
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@@ -18,6 +18,7 @@
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#include <boost/assert.hpp>
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#include <boost/shared_ptr.hpp>
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+#include <boost/weak_ptr.hpp>
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namespace boost {
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namespace signals2 {
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