Index: usr.bin/compress/compress.1
===================================================================
--- usr.bin/compress/compress.1
+++ usr.bin/compress/compress.1
@@ -177,6 +177,13 @@
 coding (as used in the historical command pack), or adaptive Huffman
 coding (as used in the historical command compact), and takes less
 time to compute.
+.Pp
+If
+.Ar file
+is a soft or hard link
+.Nm compress
+will replace it with a compressed copy of the file pointed to by the link.
+The link's target file is left uncompressed.
 .Sh EXIT STATUS
 .Ex -std compress uncompress
 .Pp
@@ -248,6 +255,8 @@
 command appeared in
 .Bx 4.3 .
 .Sh BUGS
+The program does not handle links well and has no link-handling options.
+.Pp
 Some of these might be considered otherwise-undocumented features.
 .Pp
 .Nm compress :