+# Don't include check-files.mk in your rules files directly; instead
+# use config-package.mk.
+
+# check-files.mk is used to verify that files on local disk have not
+# been modified from the upstream packaged version. Its only API
+# function is adding the following function as a dependency:
+#
+# $(call debian_check_files,filename)
+#
+# Returns the path to a copy of filename that is verified to be
+# unmodified from the version shipped by the distribution (by checking
+# md5sums). The function causes the package to fail to build if the
+# relevant configuration file has been modified on the build machine.
+