actv = find_program(
  'systemd-socket-activate',
  'systemd-activate',
  required: false
)
kgen = find_program(
  join_paths(libexecdir, 'tangd-keygen'),
  '/usr/libexec/tangd-keygen',
  '/usr/lib/x86_64-linux-gnu/tangd-keygen',
  required: false
)
updt = find_program(
  join_paths(libexecdir, 'tangd-update'),
  '/usr/libexec/tangd-update',
  '/usr/lib/x86_64-linux-gnu/tangd-update',
  required: false
)
tang = find_program(
  join_paths(libexecdir, 'tangd'),
  '/usr/libexec/tangd',
  '/usr/lib/x86_64-linux-gnu/tangd',
  required: false
)
curl = find_program('curl', required: false)

if curl.found()
  bins += join_paths(meson.current_source_dir(), 'clevis-decrypt-tang')
  bins += join_paths(meson.current_source_dir(), 'clevis-encrypt-tang')
  mans += join_paths(meson.current_source_dir(), 'clevis-encrypt-tang.1')

  if actv.found() and kgen.found() and updt.found() and tang.found()
    env = environment()
    env.set('SD_ACTIVATE', actv.path())
    env.append('PATH',
      join_paths(meson.source_root(), 'src'),
      meson.current_source_dir(),
      '/usr/libexec',
      '/usr/lib/x86_64-linux-gnu',
      libexecdir,
      separator: ':'
    )

    test('pin-tang', find_program('./pin-tang'), env: env)
  else
    warning('Will not run tang tests due to missing dependencies!')
  endif
else
  warning('Will not install tang pin due to missing dependencies!')
endif