Link with correct values-*.o files on Solaris (PR target/40411)

[Jonathan Wakely]

On 30/01/18 15:51 +0100, Rainer Orth wrote:
>Hi Joseph,
>
>> On Tue, 30 Jan 2018, Rainer Orth wrote:
>>
>>> So it seems the following snippet
>>>
>>> #define STARTFILE_ARCH_SPEC \
>>> [...]
>>>      %{std=c9*|std=iso9899\\:199409|std=c1*:values-Xc.o%s; :values-Xa.o%s} \
>>>
>>> seems like the right thing to do, as you said.
>>
>> That version would need updating when we add -std=c2x (once there's a C2x
>> working draft with features being added to it).  If you use std=c* instead
>> of separate std=c9* and std=c1* you'd avoid needing such a change - but
>> then of course it would cover -std=c++* for C++.
>
>I know, that why I used the current form.  Admittedly it's a maintenance
>problem (likely to be forgotten in the future).  If we add in -ansi, we
>can just as well add -std=c++* (thus -std=c*), too.
>
>I guess that's the safest option overall, unless Jonathan has objections
>from a C++ standards perspective.

No objections from me, I'm happy either way.