Warn if equation `define' key is quoted (groff-ism).

1 files changed, 3 insertions, 0 deletions

diff --git a/read.c b/read.c
index 6ca1fb1b..f8390552 100644
--- a/read.c
+++ b/read.c
@@ -146,6 +146,9 @@ static	const char * const	mandocerrs[MANDOCERR_MAX] = {
 	"bad comment style",
 	"bad escape sequence",
 	"unterminated quoted string",
+
+	/* related to equations */
+	"unexpected literal in equation",
 	
 	"generic error",