re PR bootstrap/89539 (gcc fails to build/bootstrap on MACOSX)

	PR bootstrap/89539
	* dwarf2out.c (output_comdat_type_unit): Add ATTRIBUTE_UNUSED to
	early_lto_debug argument.

From-SVN: r269301

gcc/ChangeLog

+2019-03-01  Jakub Jelinek  <jakub@redhat.com>
+
+	PR bootstrap/89539
+	* dwarf2out.c (output_comdat_type_unit): Add ATTRIBUTE_UNUSED to
+	early_lto_debug argument.
+
 2019-02-28  Eric Botcazou  <ebotcazou@adacore.com>
 
 	PR tree-optimization/89536

gcc/dwarf2out.c

@@ -11234,7 +11234,8 @@ output_skeleton_debug_sections (dw_die_ref comp_unit,
 /* Output a comdat type unit DIE and its children.  */
 
 static void
-output_comdat_type_unit (comdat_type_node *node, bool early_lto_debug)
+output_comdat_type_unit (comdat_type_node *node,
+			 bool early_lto_debug ATTRIBUTE_UNUSED)
 {
   const char *secname;
   char *tmp;