diff -Naur citeproc/Setup.hs citeproc.new/Setup.hs
--- citeproc/Setup.hs	1970-01-01 01:00:00.000000000 +0100
+++ citeproc.new/Setup.hs	2019-11-13 17:10:01.536473543 +0100
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain