Function signatures in extern "C".

[Jakub Jelinek]

On Mon, Sep 07, 2020 at 10:27:13AM +0100, Jonathan Wakely via Gcc wrote:
> On Mon, 7 Sep 2020 at 09:18, Iain Sandoe wrote:
> >
> > Perhaps the PR should be reopened with “accepts invalid”?
> 
> My impression from the PR is that the reporter was using a different
> ABI, where the name isn't reserved. Maybe the testcase should only be
> accepted with -fno-threadsafe-statics or -ffreestanding or something
> to say "I'm doing things differently".
> 
> Or we could just say that G++ reserves the Itanium ABI names
> unconditionally, even if it doesn't need to use them, in which case it
> would be accepts-invalid.

All identifiers starting with two underscores are reserved for the
implementation already.

	Jakub