3 files changed, 14 insertions, 5 deletions
diff --git a/ascii.in b/ascii.in
index 5518f12c..2e1e4351 100644
--- a/ascii.in
+++ b/ascii.in
@@ -100,7 +100,7 @@ LINE("ae", 2,	  "ae", 2)
 LINE("AE", 2,	  "AE", 2)
 LINE("oe", 2,	  "oe", 2)
 LINE("OE", 2,	  "OE", 2)
-LINE("ss", 2,	  "B", 1)
+LINE("ss", 2,	  "ss", 2)
 LINE("\'A", 2,	  "A", 1)
 LINE("\'E", 2,	  "E", 1)
 LINE("\'I", 2,	  "I", 1)
diff --git a/libmdoc.h b/libmdoc.h
index 0cc956bb..450f35b5 100644
--- a/libmdoc.h
+++ b/libmdoc.h
@@ -146,10 +146,6 @@ int		  mdoc_args(struct mdoc *, int,
 #define	ARGS_QWORD	(3)
 #define	ARGS_PHRASE	(4)
 
-/* FIXME: get rid of these. */
-int		  xstrlcpys(char *, const struct mdoc_node *, size_t);
-void	 	 *xrealloc(void *, size_t);
-char	 	 *xstrdup(const char *);
 int		  mdoc_macroend(struct mdoc *);
 
 __END_DECLS
diff --git a/mandoc_char.7 b/mandoc_char.7
index 1863bde0..6d8bd0dd 100644
--- a/mandoc_char.7
+++ b/mandoc_char.7
@@ -459,6 +459,19 @@ Special symbols:
 .Pq ampersand, deprecated
 .El 
 .\" SECTION
+.Sh COMPATIBILITY
+This section documents compatibility of
+.Nm
+with older or existing versions of
+.Xr groff 1 :
+.Pp
+.Bl -tag -width 12n -offset "XXXX" -compact
+.It \e(ss
+Renders differently in
+.Fl T Ns Ar ascii
+mode.
+.El
+.\" SECTION
 .Sh SEE ALSO
 .Xr mandoc 1
 .\" SECTION