varasm.c (do_assemble_alias): Restore comment describing function.

	* varasm.c (do_assemble_alias): Restore comment describing function.
	Annotate the target parameter as potentially unused.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>

From-SVN: r96768

gcc/ChangeLog

+2005-03-20  Roger Sayle  <roger@eyesopen.com>
+	    Joseph S. Myers  <joseph@codesourcery.com>
+
+	* varasm.c (do_assemble_alias): Restore comment describing function.
+	Annotate the target parameter as potentially unused.
+
 2005-03-20  Marek Michalkiewicz  <marekm@amelek.gda.pl>
 
 	PR target/18551

gcc/varasm.c

@@ -4392,8 +4392,12 @@ find_decl_and_mark_needed (tree decl, tree target)
     return NULL_TREE;
 }
 
+/* Output the assembler code for a define (equate) using ASM_OUTPUT_DEF
+   or ASM_OUTPUT_DEF_FROM_DECLS.  The function defines the symbol whose
+   tree node is DECL to have the value of the tree node TARGET.  */
+
 static void
-do_assemble_alias (tree decl, tree target)
+do_assemble_alias (tree decl, tree target ATTRIBUTE_UNUSED)
 {
   TREE_ASM_WRITTEN (decl) = 1;
   TREE_ASM_WRITTEN (DECL_ASSEMBLER_NAME (decl)) = 1;