"port install meld" does not yield working executable

[joerg van den hoff]

On 16.03.21 19:41, Ruben Di Battista wrote:
> If you run `port notes dbus` it should tell you how to enable the service
> in launchd if I'm not mistaken.

thanks. the notes say

"sudo port load dbus" should start the service(s).

I have done that right now but it did not solve the issue with `meld'... :(. the error message is 
now reduced to

"** (meld:70489): WARNING **: 19:46:07.080: Failed to load shared library 
'./gtksourceview/libgtksourceview-4.0.dylib' referenced by the typelib: 
dlopen(./gtksourceview/libgtksourceview-4.0.dylib, 9): image not found
Meld requires GtkSourceView 4.0 or higher.
"

so, indeed, the dbus related complaint went away (but unfortunately w/o solving the issue).

> 
> I haven't the Mac available right now, otherwise I'll give you the command
> that I don't remember by heat
> 
> (Please keep the discussion in the list replying to all...😉)

right, sorry. my fault...
> 
> 
> On Tue, 16 Mar 2021, 19:31 joerg van den hoff, <veedeehjay at gmail.com> wrote:
> 
>>
>>
>> On 16.03.21 19:24, Ruben Di Battista wrote:
>>> Did you enable dbus as per its notes?
>>
>> that was fast... :). no, I did not. didn't see any notes either. you mean
>> "notes of dbus" rather
>> than "meld" I presume? if dbus installed/updated recently during some
>> larger `port upgrade outdated'
>> run, I must have overlooked those notes.
>>
>> how can I find those? or what do I need to do?
>>
>>>
>>> On Tue, 16 Mar 2021, 19:23 joerg van den hoff, <veedeehjay at gmail.com>
>> wrote:
>>>
>>>> after "port install meld", on trying to start the program I get on the
>>>> command line from which it is
>>>> started the message
>>>>
>>>> "
>>>> dbus[70231]: Dynamic session lookup supported but failed: launchd did
>> not
>>>> provide a socket path,
>>>> verify that org.freedesktop.dbus-session.plist is loaded!
>>>>
>>>> ** (meld:70231): WARNING **: 18:11:03.149: Failed to load shared library
>>>> './gtksourceview/libgtksourceview-4.0.dylib' referenced by the typelib:
>>>> dlopen(./gtksourceview/libgtksourceview-4.0.dylib, 9): image not found
>>>> Meld requires GtkSourceView 4.0 or higher.
>>>> "
>>>>
>>>> and a small pop up window from the `meld' GUI telling "Meld requires
>>>> GtkSourceView 4.0 or higher."
>>>>
>>>> `port installed' lists
>>>>
>>>>      gtksourceview4 @4.8.0_0+x11 (active)
>>>>
>>>>
>>>> I don't understand the
>>>>
>>>> dbus[70231]: Dynamic session lookup supported but failed: launchd did
>> not
>>>> provide a socket path,
>>>> verify that org.freedesktop.dbus-session.plist is loaded!
>>>>
>>>> hint nor what I can do about it.
>>>>
>>>> seen with 10.15.7 and current MacPorts.
>>>>
>>>> any ideas?
>>>>
>>>> thx/joerg
>>>>
>>>
>>
>