Pivot Table: Fix compiler warning.

[pspp] / src / output / pivot-table.h

diff --git a/src/output/pivot-table.h b/src/output/pivot-table.h
index 8ea20644059b87eb20b797cbcd7e0747c337f0ee..aa064953fedb25aa97a4e1016227b421854c064d 100644 (file)
--- a/src/output/pivot-table.h
+++ b/src/output/pivot-table.h
@@ -590,7 +590,7 @@ struct pivot_value
     char *subscript;
     char *superscript;
 
-    struct pivot_footnote **footnotes;
+    const struct pivot_footnote **footnotes;
     size_t n_footnotes;
 
     enum pivot_value_type type;
@@ -671,10 +671,10 @@ struct pivot_value *pivot_value_new_user_text (const char *, size_t length);
 struct pivot_value *pivot_value_new_user_text_nocopy (char *);
 
 /* Footnotes. */
-void pivot_value_add_footnote (struct pivot_value *, struct pivot_footnote *);
+void pivot_value_add_footnote (struct pivot_value *, const struct pivot_footnote *);
 
 /* Numeric formats. */
-void pivot_value_set_rc (struct pivot_table *, struct pivot_value *,
+void pivot_value_set_rc (const struct pivot_table *, struct pivot_value *,
                          const char *rc);
 
 /* Converting a pivot_value to a string for display. */