--- darcs-2.18.5/Setup.hs~	2001-09-09 09:46:40.000000000 +0800
+++ darcs-2.18.5/Setup.hs	2026-02-01 14:43:10.593045265 +0800
@@ -17,6 +17,7 @@
 import Distribution.Simple.Utils
     (copyFiles, createDirectoryIfMissingVerbose, rawSystemStdout,
      rewriteFileEx)
+import Distribution.Types.LocalBuildInfo (buildDir)
 import Distribution.Verbosity ( Verbosity, silent )
 import Distribution.Text ( display )