Imported Upstream version 2.18.0

[lilypond.git] / lily / file-name-map.cc

diff --git a/lily/file-name-map.cc b/lily/file-name-map.cc
index 96be62c9a2985bc8822420f9338cb7b2af1cf914..b124fda9b154d3f00195867223faf9e2c5d8e0b0 100644 (file)
--- a/lily/file-name-map.cc
+++ b/lily/file-name-map.cc
@@ -26,10 +26,10 @@ using namespace std;
 map<string, string> file_name_map_global;
 
 string
-map_file_name (string s)
+map_file_name (const string &s)
 {
   if (file_name_map_global.find (s) != file_name_map_global.end ())
-    s = file_name_map_global[s];
+    return file_name_map_global[s];
   return s;
 }