Re: [LAU] Which jackd to install on a new system ?

To slightly expand/correct on what Glen said:

the gcc4/5 issue ONLY affects plugins written in C++ that use some specific
parts of the C++ standard libraries. The runtime interface for some of
these functions changed between g++ 4 and g++ 5, and both the host and the
plugin need to have been built with the same version of g++.

Plugins written in C (or other languages), and plugins written in C++ which
manage to avoid using these parts of the standard libraries are not
affected.

And yes, before you ask, there is effectively no way to determine whether a
plugin is affected without being the person who compiles the plugin.

On Sun, Apr 16, 2017 at 4:05 AM, Glen MacArthur <info@email-addr-hidden> wrote:

> Hmmm OK,this is a little complicated for a layman to explain but here
> goes...
>
> If I'm not mistaken (I don't use Ubuntu or Mint) Linux Mint 18 is based on
> Ubuntu 16.04, Ubuntu 16.04 uses gcc 5 as its default compiler, that means
> all the graphical desktop stuff in Mint 18 was compiled with gcc 5, The
> issue at hand is that gcc 5 introduced some important ABI changes over it's
> predecessor gcc 4.9 and some of these changes mean that a small number of
> plugins that have their UI's graphical (and underlying related components)
> compiled with gcc 4.9 won't work in a DAW compiled with gcc 5 or a DAW
> compiled on a system with gcc 5 as the default compiler. Ardour and Mixbus
> developers have long known about this so they have created Ardour and
> Mixbus versions for both gcc 4.9 and gcc 5 systems. Your warning is coming
> from the fact that when you are installing Mixbus 32C it is the gcc 4
> version and it is detecting that Linux Mint 18 uses gcc 5 and therefore
> gives you the warning. I also use Mixbus 32C and there should be a gcc 5
> version on the download page, if not... I'm certain emailing Harrison
> support will accomodate you with a gcc 5 build.
>
> But you're not out of the woods yet... Now you have your OS and DAW both
> using gcc 5 you are not immune from all potential problems. Certain plugins
> within the Ubuntu repositories may be old and not compiled with gcc 5 yet,
> these can also cause problems as well. For the best experience with
> repository plugins in Ubuntu and Mint it is recommended to use the KXStudio
> repositories which have have more up to date versions of almost ALL
> repository plugins and a special gcc 5 repository for systems using Ubuntu
> 16.04 and up. As a final note it seems most external commercial plugins
> (OverToneDSP, U-he,Illformed etc.) are not affected by these problems.
>
> KX Studio repositories are here: http://kxstudio.linuxaudio.
> org/Repositories
>
> Hope that helps, Glen
>
>
>
> ----- Original Message -----
> From:
> "jonetsu" <jonetsu@email-addr-hidden>
>
> To:
> "linux-audio-user" <linux-audio-user@email-addr-hidden>
> Cc:
>
> Sent:
> Sat, 15 Apr 2017 22:14:40 -0400
> Subject:
> Re: [LAU] Which jackd to install on a new system ?
>
>
>
> On Sat, 15 Apr 2017 18:19:58 -0700
> "Glen MacArthur" <info@email-addr-hidden> wrote:
>
> > it just won't install if JACK2 isn't present on the system... come to
> > think of it then I guess you'll be wanting JACK2 then...
>
> While this is set and Bitwig installed all right, Mixbus32C gives a
> warning that sounds not so good, so I declined the installation for
> now:
>
> "Mixbus32C was compiled with gcc4, your system uses a newer version of
> the standard c++ library. Plugins on your system may not load or
> plugin-UIs may cause crashes."
>
> What is this about exactly and, is the net result at use time as
> dramatic as it sounds ? Should I forget about using the new system
> until an updated build of Mixbus32C is provided ?
>
>
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Received on Sun Apr 16 12:15:02 2017