ruby-ncurses is broken: try ruby -e 'require "ncurses"'

[Jean Michel]

~$ruby -e 'require "ncurses"'
Traceback (most recent call last):
 5: from -e:1:in `<main>'
 4: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
 3: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
 2: from /usr/lib/ruby/vendor_ruby/ncurses.rb:23:in `<top (required)>'
 1: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
/usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require': /usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.5.0/ncursesw_bin.so: undefined symbol: set_menu_win - /usr/lib/x86_64-linux-gnu/ruby/vendor_ruby/2.5.0/ncursesw_bin.so (LoadError)

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ruby-ncurses 1.4.9-1build3
ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18
Uname: Linux 4.15.0-32-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: GNOME-Flashback:GNOME
Date: Sat Aug 18 22:25:06 2018
InstallationDate: Installed on 2015-12-14 (977 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: ruby-ncurses
UpgradeStatus: Upgraded to bionic on 2018-05-08 (102 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Georg Müller (georgmueller)]

The attached patch also links against libmenuw, which provides set_menu_win.