In a mess with libc++ libstdc++ and OSX 10.7.5 Lion

[Chris Jones]

Hi,

On 14/09/17 10:49, Jeremy Huddleston Sequoia wrote:
> 
> 
>> On Sep 14, 2017, at 01:48, Chris Jones <jonesc at hep.phy.cam.ac.uk> wrote:
>>
>> Hi,
>>
>> On 14/09/17 09:34, Mojca Miklavec wrote:
>>> On 14 September 2017 at 10:10, Chris Jones wrote:
>>>>
>>>> Update to Sierra, it will save you most trouble in the long run.
>>>> No need at all to go to a store to get it done though, just do it
>>>> yourself.... Download the updater from the App Store and follow the
>>>> instructions. Firefox and LibreOffice might also need updating, if you
>>>> haven't kept them up to date, but both will work fine in the newer OS.
>>> Just to avoid any confusion from my long complex email: this *exactly*
>>> is my opinion as well.
>>
>> If/when you do update the OS, you should of course follow the instructions at
>>
>> https://trac.macports.org/wiki/Migration
>>
>> to migrate MP.
>>
>>> Going back in time and activate ports that already worked for you
>>> might be the fastest solution in the short run that could be done in
>>> 15-60 minutes (if you know what you are doing) without taking other
>>> risks of potentially hitting other issues on the new os.
>>
>> Another option would be to restore the MP prefix (/opt/local normally) from a backup. Assuming you have backups of course... If not adding this to your regular maintenance to do list should be the first thing you do.
>>
>>> But once the super-hurry is over, going to Sierra would greatly
>>> greatly reduce most of your headaches in the long run. The upgrade
>>> should be pretty fast and painless anyway.
>>> Any OSes below 10.9 are a bit of a headache and besides of security
>>> risks & lack of software it only makes sense to use them if you know
>>> exactly what you are doing and if you can help yourself when you hit
>>> problems.
>>> High Sierra is also on the way, but it will bring its own set of
>>> headaches until the majority of ports are fixed, so probably not
>>> suggested to install it yet if you cannot live with broken ports.
>>
>> OT, but whether or not the mac OS10.13 is smooth or not depends a bit on what you update. If we put aside the APFS update for the moment, I expect it to be rather painless... I actually have tested the beta in a VM and it worked fine, I was able to build all the ports I normally install without issue..
>>
>> The APFS update, for SSD macs, is another thing. This might well cause a number of issues. For instance last I heard Xquartz (xorg-server in MP) does not work with APFS. No idea if this is fixed
> 
> That was addressed in a beta quite a while ago (beta 5?).

Good to hear, many thanks ...

I was unable to test this myself as I have only tested macOS10.13 either 
on an external USB drive, or in a VM, and in each case it was not 
possible (DiskUtility did not allow it) to update the partition to APFS.

cheers Chris

> 
>> (I understand it was an Apple issue). I rely on this so I will be holding off the update, or at least allowing the APFS conversion, until I hear news on this.. I suspect there will be other ports that will need updating to work with the new filesystem...
>>
>> Chris
>>
>>> Mojca
>