message: fix import again
diff: @@ -36,7 +36,7 @@ class C2c(CMakePackage):
  depends_on('flex@2.6.0:', type='build', when='+dev')
  depends_on('nlohmann-json', when='+tools')
  - phases = ('hostconfig',) + CMakeBuilder.phases
  + phases = ('hostconfig',) + spack.build_systems.cmake.CMakeBuilder.phases
  def configure_args(self):
  spec = self.spec if self.spec is not None else ""
  