Debian bug #1135760 iptux: FTBFS with libjsoncpp 1.9.7

[atzlinux]

Hi,

please help fix Debian bug #1135760 iptux: FTBFS with libjsoncpp 1.9.7

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1135760

Thanks!

[lidaobing]

open-source-parsers/jsoncpp#1675 jsoncpp's bug

[lidaobing]

origin bug report: open-source-parsers/jsoncpp#1668

[lidaobing]

you can bump C++ version from C++14 to C++17 for a quick fix on this problem

https://github.com/iptux-src/iptux/blob/iptux-0-9/meson.build#L5