virtualDestructor
ftp://ftp.de.debian.org/debian/pool/main/libc/libcec/libcec_7.1.1.orig.tar.xz
2.21.0 libcec-libcec-7.1.1/src/dotnetlib/CecSharpTypes.h:2011:6: warning:inconclusive: Class 'CecCallbackMethods' which has virtual members does not have a virtual destructor. [virtualDestructor]
ftp://ftp.de.debian.org/debian/pool/main/t/tasmanian/tasmanian_8.2.orig.tar.gz
head ORNL-TASMANIAN-b4b1431/SparseGrids/gridtestTestFunctions.hpp:37:6: warning:inconclusive: Class 'BaseFunction' which has virtual members does not have a virtual destructor. [virtualDestructor]