https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98441
--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Looks like a simple thinko:
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -12241,9 +12241,11 @@ grokdeclarator (const cp_declarator *declarator,
tree late_return_type = declarator->u.function.late_return_type;
if (tree auto_node = type_uses_auto (type))
{
- if (!late_return_type && funcdecl_p)
+ if (!late_return_type)
{
- if (current_class_type
+ if (!funcdecl_p)
+ /* auto (*fp)() = f; is OK. */;
+ else if (current_class_type
&& LAMBDA_TYPE_P (current_class_type))
/* OK for C++11 lambdas. */;
else if (cxx_dialect < cxx14)