MacPorts XCode Installation

[Chris Jones]

whatever you think relevant, from the discussion here. If its not clear 
it can be added to later on so don't worry about including everything at 
first. But please lets have the discussion in trac rather than here...

On 07/03/2022 4:28 pm, Michele Venturi wrote:
> What should I include in the bug report to make it clear?
> 
> Il lun 7 mar 2022, 17:25 Marius Schamschula <lists at schamschula.com 
> <mailto:lists at schamschula.com>> ha scritto:
> 
>     Michele,
> 
>     Please submit a MacPorts ticket!
> 
>     Other users may search trac if they encounter the same issue. We can
>     also link to any upstream tickets from there.
> 
>>     On Mar 7, 2022, at 10:22 AM, Michele Venturi <dardo82 at gmail.com
>>     <mailto:dardo82 at gmail.com>> wrote:
>>
>>     Should I submit a bug report before we even know if it's a
>>     MacPorts specific issue? Or how do we find that out?
>>
>>     Il lun 7 mar 2022, 16:47 Chris Jones <jonesc at hep.phy.cam.ac.uk
>>     <mailto:jonesc at hep.phy.cam.ac.uk>> ha scritto:
>>
>>
>>
>>         On 07/03/2022 3:31 pm, Michele Venturi wrote:
>>         > I have the required libraries in /usr/lib/swift too,but MPV
>>         is looking
>>         > for them in /opt/local/lib,so it doesn't find them:
>>         >
>>         > otool -l $(which mpv)
>>         > ...
>>         > cmd LC_RPATH
>>         > cmdsize 32
>>         > path /opt/local/lib (offset 12)
>>         >
>>         > Should we change RPATH or add symbolic links?
>>
>>         No, those are not the solutions here. If there is an issue
>>         with the
>>         build on 10.13 we should fix that instead, rather than apply
>>         after-the-fact bandaids.
>>
>>         The first thing to determine is if its a MacPorts specific
>>         issue due to
>>         how the build is performed, or an upstream issue. Either way
>>         please
>>         submit a bug report to macports trac so the discussion on this
>>         can
>>         continue there.
>>
>>         Chris
>>
>>         >
>>         > Michele Venturi
>>         > about.me/dardo82 <http://about.me/dardo82>
>>         <http://about.me/dardo82 <http://about.me/dardo82>>
>>         >
>>         >
>>         <https://about.me/dardo82?promo=email_sig&utm_source=product&utm_medium=email_sig&utm_campaign=gmail_api&utm_content=thumb
>>         <https://about.me/dardo82?promo=email_sig&utm_source=product&utm_medium=email_sig&utm_campaign=gmail_api&utm_content=thumb>>
>>
>>         >
>>         > Michele Venturi
>>         > about.me/dardo82 <http://about.me/dardo82>
>>         >
>>         <https://about.me/dardo82?promo=email_sig&utm_source=product&utm_medium=email_sig&utm_campaign=gmail_api&utm_content=thumb
>>         <https://about.me/dardo82?promo=email_sig&utm_source=product&utm_medium=email_sig&utm_campaign=gmail_api&utm_content=thumb>>
>>
>>         >
>>         >
>>         >
>>         >
>>         > Il giorno lun 7 mar 2022 alle ore 15:46 Ryan Schmidt
>>         > <ryandesign at macports.org <mailto:ryandesign at macports.org>
>>         <mailto:ryandesign at macports.org
>>         <mailto:ryandesign at macports.org>>> ha scritto:
>>         >
>>         >
>>         >
>>         >     On Mar 7, 2022, at 08:34, Michele Venturi wrote:
>>         >
>>         >      > If I install MPV without Xcode I get an error when I
>>         launch it:
>>         >      >
>>         >      > dyld: Library not loaded:
>>         @rpath/libswiftAVFoundation.dylib
>>         >      >   Referenced from: /opt/local/bin/mpv
>>         >      >   Reason: image not found
>>         >      >
>>         >      > It's missing something,have you tried to execute it
>>         on 10.13?
>>         >
>>         >     I have not.
>>         >
>>         >     I guess you're right, in relation to the Swift language
>>         usage I
>>         >     mentioned earlier, this port does appear to need
>>         >     libswiftAVFoundation.dylib at runtime. And maybe it is
>>         expecting to
>>         >     find it within Xcode on your system. (It depends on what
>>         @rpath
>>         >     expands to. I forget what the command is to interrogate
>>         a binary
>>         >     about its rpaths.)
>>         >
>>         >     Swift is still a new programming language and I don't
>>         think we have
>>         >     many ports in MacPorts that use Swift so I'm not sure if
>>         this should
>>         >     be considered normal or not.
>>         >
>>         >     I see that I have many copies of
>>         libswiftAVFoundation.dylib on my
>>         >     system, within various applications' bundles, so I guess
>>         Apple
>>         >     expects people to include copies of the Swift dylibs
>>         with their
>>         >     application.
>>         >
>>         >     On my 10.15 system, it does not link with
>>         >     @rpath/libswiftAVFoundation.dylib. It links with various
>>         Swift
>>         >     dylibs in /usr/lib/swift. Maybe the port can be made to
>>         do so on
>>         >     10.13 as well.
>>         >
>>         >     You should file a bug report about this mpv problem.
>>         >
>>
>