Radical cleanup of COMPATIBILITY sections:

Remove lots of lies, dozens of irrelevant implementation details,
and all references to groff versions older than 1.17.  Move relevant
information to the pages where it belongs, and out of mandoc(1) in
particular.  Add some missing general remarks to roff(7), where it
fits the character and purpose of the page much better.

1 files changed, 9 insertions, 10 deletions

diff --git a/tbl.7 b/tbl.7
index 79595f53..23bd01b3 100644
--- a/tbl.7
+++ b/tbl.7
@@ -328,18 +328,17 @@ It may then be followed by a tab
 .Pq or as designated by Cm tab
 or an end-of-line to terminate the row.
 .Sh COMPATIBILITY
-This section documents compatibility between mandoc and other
-.Nm
-implementations, at this time limited to GNU tbl.
-.Pp
-.Bl -dash -compact
-.It
-In GNU tbl, comments and macros are disallowed prior to the data block
-of a table.
 The
 .Xr mandoc 1
-implementation allows them.
-.El
+implementation of
+.Nm
+doesn't support
+.Xr mdoc 7
+and
+.Xr man 7
+macros and
+.Xr eqn 7
+equations inside tables.
 .Sh SEE ALSO
 .Xr mandoc 1 ,
 .Xr man 7 ,