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From: "gilles.gouaillardet at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/97046] Bad interaction between lbound/ubound,
 allocatable arrays and bind(C) subroutine with dimension(..) parameter
Date: Tue, 15 Sep 2020 01:13:21 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97046

--- Comment #4 from Gilles Gouaillardet <gilles.gouaillardet at gmail dot c=
om> ---
I crafted the reproducer based on a previous one that has already been merg=
ed,
and using a libc subroutine was not an issue back then.

https://gcc.gnu.org/git?p=3Dgcc.git;a=3Dblob;f=3Dgcc/testsuite/gfortran.dg/=
ISO_Fortran_binding_14.f90;h=3D388c5438252d49342f6bd357850062697fafb7b4;hb=
=3D980f185ce3ba6d532530ce0f23bfb6e30320fd8a


But I get your point, and you can

SUBROUTINE dummyc(x0) BIND(C, name=3D"dummyc")

and then in dummyc.c

#include "ISO_Fortran_binding.h"

void dummyc (CFI_cdesc_t * x){
}



This does not change the fact that the test fails with GNU compilers though=
.=