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Date: Wed, 12 Oct 2011 15:18:20 +0200
From: Paolo Carlini <paolo.carlini@oracle.com>
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CC: Jason Merrill <jason@redhat.com>,
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Subject: Re: [C++ Patch] PR 50594 (C++ front-end bits)
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... or like this, maybe better.

Paolo.

/////////////////////

Index: decl.c
===================================================================
--- decl.c	(revision 179842)
+++ decl.c	(working copy)
@@ -3654,7 +3654,7 @@ cxx_init_decl_processing (void)
   current_lang_name = lang_name_cplusplus;
 
   {
-    tree newattrs;
+    tree newattrs, extvisattr;
     tree newtype, deltype;
     tree ptr_ftype_sizetype;
     tree new_eh_spec;
@@ -3687,9 +3687,13 @@ cxx_init_decl_processing (void)
     newattrs
       = build_tree_list (get_identifier ("alloc_size"),
 			 build_tree_list (NULL_TREE, integer_one_node));
+    extvisattr = build_tree_list (get_identifier ("externally_visible"),
+				  NULL_TREE);
+    newattrs = chainon (newattrs, extvisattr);
     newtype = cp_build_type_attribute_variant (ptr_ftype_sizetype, newattrs);
     newtype = build_exception_variant (newtype, new_eh_spec);
-    deltype = build_exception_variant (void_ftype_ptr, empty_except_spec);
+    deltype = cp_build_type_attribute_variant (void_ftype_ptr, extvisattr);
+    deltype = build_exception_variant (deltype, empty_except_spec);
     push_cp_library_fn (NEW_EXPR, newtype);
     push_cp_library_fn (VEC_NEW_EXPR, newtype);
     global_delete_fndecl = push_cp_library_fn (DELETE_EXPR, deltype);