It could be a gcc 4.9 compiler code optimization (if the ubuntu package have used it).
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=762755 Look message #82
It could be a gcc 4.9 compiler code optimization (if the ubuntu package have used it).
https:/ /bugs.debian. org/cgi- bin/bugreport. cgi?bug= 762755
Look message #82