include/CompatSet: trivial const-ness fix

Signed-off-by: John Spray <john.spray@redhat.com>

diff --git a/src/include/CompatSet.h b/src/include/CompatSet.h
index d3afd402cc45f82996e283a1fb640ec594526a79..43c1ec1603b944ca27591444c6208ddc1a8e5e14 100644 (file)
--- a/src/include/CompatSet.h
+++ b/src/include/CompatSet.h
@@ -154,7 +154,7 @@ struct CompatSet {
    * -1: This CompatSet is missing at least one feature
    *     described in the other. It may still have more features, though.
    */
-  int compare(CompatSet& other) {
+  int compare(const CompatSet& other) {
     if ((other.compat.mask == compat.mask) &&
        (other.ro_compat.mask == ro_compat.mask) &&
        (other.incompat.mask == incompat.mask)) return 0;