title: dpkg-buildpackage -uc -us -b fails with "dpkg-shlibdeps: error: couldn't find library libmono-2.0.so.1 needed by ...monodis."
body: <p>Trying to build simple .deb packages with <a href="https://github.com/7digital/7digital-mono/blob/master/build-package" rel="nofollow">this script</a> is failing with this:</p>
  
  <pre><code>   dh_installexamples
     dh_installman
     dh_installcatalogs
     dh_installcron
     dh_installdebconf
     dh_installemacsen
     dh_installifupdown
     dh_installinfo
     dh_pysupport
     dh_installinit
     dh_installmenu
     dh_installmime
     dh_installmodules
     dh_installlogcheck
     dh_installlogrotate
     dh_installpam
     dh_installppp
     dh_installudev
     dh_installwm
     dh_installxfonts
     dh_bugfiles
     dh_lintian
     dh_gconf
     dh_icons
     dh_perl
     # Skipping dh_usrlocal - empty override
     dh_link
     dh_compress
     dh_fixperms
     dh_strip
     dh_makeshlibs
     dh_shlibdeps
  dpkg-shlibdeps: error: couldn't find library libmono-2.0.so.1 needed by debian/7digital-mono/usr/usr/bin/monodis (ELF format: 'elf64-x86-64'; RPATH: '').
  Note: libraries are not searched in other binary packages that do not have any shlibs or symbols file.
  To help dpkg-shlibdeps find private libraries, you might need to set LD_LIBRARY_PATH.
  dh_shlibdeps: dpkg-shlibdeps -Tdebian/7digital-mono.substvars debian/7digital-mono/usr/usr/bin/mono debian/7digital-mono/usr/usr/bin/mprof-report debian/7digital-mono/usr/usr/bin/mono-sgen debian/7digital-mono/usr/usr/bin/pedump debian/7digital-mono/usr/usr/bin/monograph debian/7digital-mono/usr/usr/bin/monodis debian/7digital-mono/usr/usr/lib/mono/4.5/mcs.exe.so debian/7digital-mono/usr/usr/lib/mono/4.5/mscorlib.dll.so debian/7digital-mono/usr/usr/lib/mono/2.0/mscorlib.dll.so debian/7digital-mono/usr/usr/lib/libMonoSupportW.so debian/7digital-mono/usr/usr/lib/libikvm-native.so debian/7digital-mono/usr/usr/lib/libmono-2.0.so.1.0.0 debian/7digital-mono/usr/usr/lib/libMonoPosixHelper.so debian/7digital-mono/usr/usr/lib/libmono-profiler-log.so.0.0.0 debian/7digital-mono/usr/usr/lib/libmono-profiler-cov.so.0.0.0 debian/7digital-mono/usr/usr/lib/libmono-profiler-aot.so.0.0.0 debian/7digital-mono/usr/usr/lib/libmonosgen-2.0.so.0.0.0 debian/7digital-mono/usr/usr/lib/libmono-profiler-iomap.so.0.0.0 returned exit code 2
  make: *** [binary] Error 9
  dpkg-buildpackage: error: fakeroot debian/rules binary gave error exit status 2
  </code></pre>
  
  <p>Any idea what this means?</p>