On Tue, Dec 20, 2022 at 09:40:23PM +0100, Harald Anlauf via Fortran wrote:
>
> we obviously forgot to extend the C interoperability check of the
> type of function results to CLASS variables and thus did not reject
> them. Wrong code could lead to an ICE, see testcase by Gerhard.
>
> Regtested
dc22544c2412cf8810a4956f537a2f50e0711a05 Mon Sep 17 00:00:00 2001
From: Harald Anlauf
Date: Tue, 20 Dec 2022 21:17:08 +0100
Subject: [PATCH] Fortran: a C interoperable function cannot have the CLASS
attribute [PR95375]
gcc/fortran/ChangeLog:
PR fortran/95375
* decl.cc (verify_bind_c_sym): Extend
