psppire-var-view: Fix constness error.

diff --git a/src/ui/gui/psppire-var-view.c b/src/ui/gui/psppire-var-view.c
index 0e72cb3717d784c1df0f7a0fba1d6561a72d0692..13db8e60e4c0cd2c78866cc4ac2cc07e9c625b18 100644 (file)
--- a/src/ui/gui/psppire-var-view.c
+++ b/src/ui/gui/psppire-var-view.c
@@ -21,6 +21,7 @@
 #include "psppire-var-ptr.h"
 #include "psppire-select-dest.h"
 
+#include <libpspp/cast.h>
 #include <libpspp/str.h>
 #include <data/variable.h>
 
@@ -388,7 +389,7 @@ psppire_var_view_list_names (PsppireVarView *vv, gint column)
       do
        {
          const struct variable *var = psppire_var_view_get_variable (vv, column, &iter);
-         list = g_slist_prepend (list, var);
+         list = g_slist_prepend (list, CONST_CAST (struct variable *, var));
        }
       while (psppire_var_view_get_iter_next (vv, &iter));
     }