Macports Clang 3.9 compilation failures due to missing <atomic> include

[Mojca Miklavec]

On 28 September 2017 at 17:05, Chris Jones wrote:
> On 28/09/17 16:02, Mojca Miklavec wrote:
>> On 28 September 2017 at 16:57, Chris Jones wrote:
>>>
>>> Hi,
>>>
>>> Thanks. In fact I tried adding
>>>
>>> PortGroup           cxx11 1.1
>>>
>>> but that gave me the error below. Presumably I am missiong something else
>>> ?
>>>
>>>    clang: error: invalid library name in argument
>>> '-stdlib=macports-libstdc++'
>>
>>
>> This means that the compiler is missing the necessary patch
>> (introduced by Marcus).
>>
>> You need the variant +libstdcxx and clang-4.0 has that one enabled by
>> default, while 3.9 doesn't.
>
> OK thanks. One of the ports I am interested in fixing will not compile with
> clang 4.0 though. Is there a why to do this with 3.9 as well ?

I didn't check, but I assume that the following commit satisfies your needs:

https://github.com/macports/macports-ports/commit/c79d736b4cc51f1f9fbea598382ef4960f05b316

Mojca