--- origsrc/lilypond-2.18.2/flower/file-name.cc	2015-04-07 12:13:53.707008700 +0200
+++ src/lilypond-2.18.2/flower/file-name.cc	2015-04-10 21:24:05.029598100 +0200
@@ -145,12 +145,6 @@
 
 File_name::File_name (string file_name)
 {
-#ifdef __CYGWIN__
-  /* All system functions would work, even if we do not convert to
-     posix file_name, but we would think that \foe\bar\baz.ly is in
-     the cwd.  */
-  file_name = dos_to_posix (file_name);
-#endif
 #ifdef __MINGW32__
   file_name = slashify (file_name);
 #endif