common: mark 'Arrowsynonyms' const

diff --git a/lib/common/arrows.c b/lib/common/arrows.c
index 6cd76fda8eefd238cd497f1162ba0f24c2aff7b8..95face39c93db8e861e4dfea0d8c3a8c5aea3026 100644 (file)
--- a/lib/common/arrows.c
+++ b/lib/common/arrows.c
@@ -63,7 +63,7 @@ typedef struct arrowname_t {
     int type;
 } arrowname_t;
 
-static arrowname_t Arrowsynonyms[] = {
+static const arrowname_t Arrowsynonyms[] = {
     /* synonyms for deprecated arrow names - included for backward compatibility */
     /*  evaluated before primary names else "invempty" would give different results */
     {"invempty", (ARR_TYPE_NORM | ARR_MOD_INV | ARR_MOD_OPEN)},        /* oinv     */