│ debian/rules:3: /usr/share/cdbs/1/rules/buildcore.mk: No such file or      ↑
 │ directory                                                                  ▮
 │ debian/rules:4: /usr/share/cdbs/1/rules/debhelper.mk: No such file or      ▒
 │ directory                                                                  ▒
 │ make: *** No rule to make target `/usr/share/cdbs/1/rules/debhelper.mk'.   ▒
 │ Stop.