Fix Sequence/Event const-correctness issues

[ardour.git] / libs / ardour / smf_source.cc

diff --git a/libs/ardour/smf_source.cc b/libs/ardour/smf_source.cc
index 33ba6e2a00b83e69aaac9467e38d628d91f88fe6..0ddc14f78d77c2ef744b41331910c9459114d776 100644 (file)
--- a/libs/ardour/smf_source.cc
+++ b/libs/ardour/smf_source.cc
@@ -604,8 +604,8 @@ SMFSource::safe_midi_file_extension (const string& file)
 }
 
 static bool compare_eventlist (
-       const std::pair< Evoral::Event<Evoral::Beats>*, gint >& a,
-       const std::pair< Evoral::Event<Evoral::Beats>*, gint >& b) {
+       const std::pair< const Evoral::Event<Evoral::Beats>*, gint >& a,
+       const std::pair< const Evoral::Event<Evoral::Beats>*, gint >& b) {
        return ( a.first->time() < b.first->time() );
 }