[DRE-maint] Bug#818260: sup-mail: crashes on start: "cannot load such file -- _xapian (LoadError)"

[Antonio Sartori]

Package: sup-mail
Version: 0.22.1-1
Severity: grave
Justification: renders package unusable

Dear Maintainer,

sup-mail crashes on start with the following output:

/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- _xapian (LoadError)
	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib/ruby/vendor_ruby/xapian.rb:42:in `<module:Xapian>'
	from /usr/lib/ruby/vendor_ruby/xapian.rb:40:in `<top (required)>'
	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib/ruby/vendor_ruby/sup/index.rb:4:in `<top (required)>'
	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib/ruby/vendor_ruby/sup.rb:428:in `<top (required)>'
	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/bin/sup-mail:20:in `<main>'


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.4.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages sup-mail depends on:
ii  ruby                        1:2.3.0+1
ii  ruby-chronic                0.10.2-3
ii  ruby-highline               1.7.2-1
ii  ruby-locale                 2.1.2-1
ii  ruby-lockfile               2.1.3-1
ii  ruby-mime-types             2.6.1-1
ii  ruby-ncurses                1.4.9-1
ii  ruby-rubymail               1.1.0-2
ii  ruby-trollop                2.0-2
ii  ruby-unicode                0.4.4-2+b6
ii  ruby-xapian                 1.2.22-2
ii  ruby2.1 [ruby-interpreter]  2.1.5-4
ii  ruby2.2 [ruby-interpreter]  2.2.4-1
ii  ruby2.3 [ruby-interpreter]  2.3.0-4

Versions of packages sup-mail recommends:
ii  ruby-gpgme  2.0.12-1

sup-mail suggests no packages.

-- no debconf information