Makefile to install it all into debian/tmp, and then use dh_install to copy
directories and files from there into the proper package build directories.
-From debhelper compatability level 7 on, if --sourcedir is not specified,
+From debhelper compatibility level 7 on, if --sourcedir is not specified,
dh_install will install files from debian/tmp if the directory contains the
files. Otherwise, it will install files from the current directory.