cppunit requires C++11 capable compiler now

[Ryan Schmidt]

Yes it looks like cppunit now requires C++11, which means everything that requires cppunit now requires C++11 too. Which means problems for users of macOS versions earlier than El Capitan.

https://trac.macports.org/ticket/54078


> On May 1, 2017, at 11:41, Richard L. Hamilton <rlhamil at smart.net> wrote:
> 
> That was it - reverting cppunit back to @1.13.2_0 (rather than the new @1.14.0_0) gets rid of the rev-upgrade problem.

Well, it ignores the problem...


>> On May 1, 2017, at 12:35, Richard L. Hamilton <rlhamil at smart.net> wrote:
>> 
>> To make it worse, a recent update (almost certainly to cppunit) causes dirac to appear in port rev-upgrade, and then fail to build.
>> 
>> <main.log-dirac.txt.gz>
>> 
>> 
>>> On May 1, 2017, at 12:23, Richard L. Hamilton <rlhamil at smart.net> wrote:
>>> 
>>> This upgrade needed intervention to work on Snow Leopard; cppunit may not work with whatever the default compiler happens to be:
>>> configure: error: *** A compiler with support for C++11 language features is required.
>>> 
>>> Workaround: port upgrade cppunit configure.compiler=macports-gcc-5
>>> 
>> 
>