Back level boost libraries available?

[S. L. Garwood]

> On Mar 10, 2018, at 4:53 PM, Ryan Schmidt <ryandesign at macports.org> wrote:
> 
> 
> On Mar 10, 2018, at 14:53, S. L. Garwood wrote:
> 
>> I need boost 1.65 … is it available on MacPorts? All I see is 1.66
> 
> No, MacPorts provides only the current version of a port.
> 
> Instructions for installing an older version of a port are here:
> 
> https://trac.macports.org/wiki/howto/InstallingOlderPort
> 
> However, if you downgrade boost to 1.65, that will probably break any ports you've installed that depend on boost. So I don't recommend you do that.
> 
> Why do you need 1.65?

error: use of class template 'boost::asio::strand' requires template arguments boost::asio::strand* _strand;
Common problem with 1.66 due to rework of asio:: 
1.65 worked fine