1 files changed, 4 insertions, 0 deletions
diff --git a/src/vhdl/sem_names.adb b/src/vhdl/sem_names.adb
index 6c25b812c..9290ae6e2 100644
--- a/src/vhdl/sem_names.adb
+++ b/src/vhdl/sem_names.adb
@@ -1897,6 +1897,10 @@ package body Sem_Names is
                Error_Msg_Sem
                  (+Name,
                   " (use --ieee=synopsys for non-standard synopsys packages)");
+            elsif Suffix = Name_Std_Logic_Textio then
+               Error_Msg_Sem
+                 (+Name, " (use --ieee=synopsys or --std=08 for "
+                    & "this non-standard synopsys package)");
             end if;
          end if;
       end Error_Unit_Not_Found;