Cleanup, no functional change:

No need to expose the tbl(7) syntax tree data structures everywhere.
Move them to their own include file, "tbl.h", and improve comments.

1 files changed, 1 insertions, 0 deletions

diff --git a/eqn.c b/eqn.c
index 82fa5b49..48ce9d36 100644
--- a/eqn.c
+++ b/eqn.c
@@ -30,6 +30,7 @@
 #include "mandoc_aux.h"
 #include "mandoc.h"
 #include "roff.h"
+#include "tbl.h"
 #include "libmandoc.h"
 #include "libroff.h"