error while loading shared libraries: libdb_cxx-5.3.so: cannot open shared object file: No such file or directory

Hi,
on a mint18 machine, I have libdb5.3* installed, but execution of impact-qt does not work :

$ ./impact-qt: error while loading shared libraries: libdb_cxx-5.3.so: cannot open shared object file: No such file or directory`


$ apt-file search libdb_cxx-5.3.so
libdb5.3++: /usr/lib/x86_64-linux-gnu/libdb_cxx-5.3.so

Issue https://github.com/bitcoin/bitcoin/issues/4103 did not helped. Any idea?