s390.c (s390_option_override): Disable DWARF 3/4 extensions for TPF, unless specifically selected.

* config/s390/s390.c (s390_option_override): Disable DWARF 3/4
extensions for TPF, unless specifically selected.

From-SVN: r190023

gcc/ChangeLog

+2012-07-31  DJ Delorie  <dj@redhat.com>
+
+	* config/s390/s390.c (s390_option_override): Disable DWARF 3/4
+	extensions for TPF, unless specifically selected.
+
 2012-08-01  Alan Modra  <amodra@gmail.com>
 
 	PR target/54131

gcc/config/s390/s390.c

@@ -1654,6 +1654,16 @@ s390_option_override (void)
   maybe_set_param_value (PARAM_SCHED_PRESSURE_ALGORITHM, 2,
                          global_options.x_param_values,
                          global_options_set.x_param_values);
+
+  if (TARGET_TPF)
+    {
+      /* Don't emit DWARF3/4 unless specifically selected.  The TPF
+	 debuggers do not yet support DWARF 3/4.  */
+      if (!global_options_set.x_dwarf_strict) 
+	dwarf_strict = 1;
+      if (!global_options_set.x_dwarf_version)
+	dwarf_version = 2;
+    }
 }
 
 /* Map for smallest class containing reg regno.  */