--- /dev/null
+\version "2.14.0"
+
+#(ly:set-option 'warning-as-error #f)
+
+\header {
+ texidoc = "Normally, margin settings must not cause systems to run off the page."
+}
+
+#(set-default-paper-size "a4")
+
+someNotes = \relative c' { \repeat unfold 40 { c4 d e f } }
+
+\paper {
+ left-margin = 20 \mm
+ line-width = 200 \mm
+}
+
+\book {
+ \score { \someNotes }
+}