shiftTooManyBits
ftp://ftp.de.debian.org/debian/pool/main/g/gtkwave/gtkwave_3.3.121.orig.tar.gz
head gtkwave-gtk3-3.3.121/src/bitvec.c:280:42: error: Shifting 32-bit value by 63 bits is undefined behaviour [shiftTooManyBits]
head gtkwave-gtk3-3.3.121/src/bitvec.c:409:42: error: Shifting 32-bit value by 63 bits is undefined behaviour [shiftTooManyBits]