[Debian-med-packaging] Bug#963246: vg FTBFS with Protobuf 3.12.3

[László Böszörményi (GCS)]

Source: vg
Severity: normal
Justification: fails to build from source (but built successfully in the past)
Tags: upstream ftbfs

Hi,

Soon the Protobuf transition will start. Your package FTBFS with the Protobuf
3.12.3-1 version, currently in experimental. The relevant lines hopefully:
. ./source_me.sh && g++ -I/usr/include/fastahack
-I/build/vg-1.24.0+ds/include -I. -I/build/vg-1.24.0+ds/src
-I/build/vg-1.24.0+ds/src/unittest
-I/build/vg-1.24.0+ds/src/subcommand
-I/build/vg-1.24.0+ds/include/dynamic -I/usr/include/cairo
-I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include
-I/usr/include/pixman-1 -I/usr/include/uuid -I/usr/include/freetype2
-I/usr/include/libpng16 -I/usr/include/smithwaterman
-I/usr/include/vcflib -I/usr/include/smithwaterman
-I/usr/include/fastahack  -O3 -Werror=return-type -std=c++14 -ggdb -g
-MMD -MP  -fopenmp -c -o obj/cactus_snarl_finder.o
src/cactus_snarl_finder.cpp
In file included from src/cactus_snarl_finder.hpp:10,
                 from src/cactus_snarl_finder.cpp:13:
src/snarls.hpp:607:12: error: cannot derive from 'final' base
'vg::Snarl' in derived type 'vg::SnarlManager::SnarlRecord'
  607 |     struct SnarlRecord : public Snarl {
      |            ^~~~~~~~~~~
make: *** [Makefile:544: obj/cactus_snarl_finder.o] Error 1

Please contact your upstream or try to fix yourself.

Thanks,
Laszlo/GCS