Doc:

#defiine lchown chown

could be bad on systems which have no lchown and where chown
follows symbollic links.  On such systems it might be better not to
try to chown symlinks at all.

rsync.h

@@ -461,6 +461,9 @@ extern int errno;
 #define SUPPORT_LINKS HAVE_READLINK
 #define SUPPORT_HARD_LINKS HAVE_LINK
 
+/* This could be bad on systems which have no lchown and where chown
+ * follows symbollic links.  On such systems it might be better not to
+ * try to chown symlinks at all. */
 #ifndef HAVE_LCHOWN
 #define lchown chown
 #endif