[COMMITTED 34/40] ada: Fix bug in -gnatw.o switch (unreferenced out parameters)

[Marc Poulhiès]

From: Bob Duff <d...@adacore.com>

Fixes this bug: If -gnatw.o is specified, it is ignored unless
-gnatwm is also specified (either directly, or as part of a
catch-all switch like -gnatwa).

gcc/ada/ChangeLog:

        * sem_warn.adb (Warn_On_Useless_Assignments):
        Enable Warn_On_Useless_Assignment in the case of
        Warn_On_All_Unread_Out_Parameters.

Tested on x86_64-pc-linux-gnu, committed on master.

---
 gcc/ada/sem_warn.adb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/ada/sem_warn.adb b/gcc/ada/sem_warn.adb
index 74f9fe304df..32eee3370e2 100644
--- a/gcc/ada/sem_warn.adb
+++ b/gcc/ada/sem_warn.adb
@@ -4743,7 +4743,7 @@ package body Sem_Warn is
       Ent : Entity_Id;
 
    begin
-      if Warn_On_Modified_Unread
+      if (Warn_On_Modified_Unread or Warn_On_All_Unread_Out_Parameters)
         and then In_Extended_Main_Source_Unit (E)
       then
          Ent := First_Entity (E);
-- 
2.43.0