1 files changed, 4 insertions, 4 deletions
diff --git a/build2/file.ixx b/build2/file.ixx
index be43857..15fa8dc 100644
--- a/build2/file.ixx
+++ b/build2/file.ixx
@@ -10,20 +10,20 @@ namespace build2
     return source_once (root, base, bf, base);
   }
 
-  target*
+  const target*
   import (const prerequisite_key&, bool existing);
 
-  inline target&
+  inline const target&
   import (const prerequisite_key& pk)
   {
-    assert (phase == run_phase::search_match);
+    assert (phase == run_phase::match);
     return *import (pk, false);
   }
 
   inline const target*
   import_existing (const prerequisite_key& pk)
   {
-    assert (phase == run_phase::search_match || phase == run_phase::execute);
+    assert (phase == run_phase::match || phase == run_phase::execute);
     return import (pk, true);
   }
 }