src/math/categoricals.c: Remove inappropriate const qualifier

diff --git a/src/math/categoricals.c b/src/math/categoricals.c
index 2bc2b626b0636c36c59a77fe0fb290738b87ead5..7eaf82195badf8dab7e63914cff3934cd6e3d68c 100644 (file)
--- a/src/math/categoricals.c
+++ b/src/math/categoricals.c
@@ -99,7 +99,7 @@ struct interact_params
   /* A map indexed by a interaction_value */
   struct hmap ivmap;
 
-  const struct interaction *iact;
+  struct interaction *iact;
 
   int base_subscript_short;
   int base_subscript_long;