wxWidgets-3.0 warnings with Big Sur

[Kevin Horton]

> On Dec 29, 2020, at 20:13, Ryan Schmidt <ryandesign at macports.org> wrote:
> 
> On Dec 29, 2020, at 20:12, Kevin Horton wrote:
> 
>> On Dec 29, 2020, at 17:20, Ken Cunningham wrote:
>>> 
>>> Interesting.
>>> 
>>> /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.0.4.0.dylib
>>> and
>>> /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib
>>> are actually the same library; one is just a symlink to the other:
>>> 
>>> % ls -la /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0*           
>>> -rwxr-xr-x  1 macports  wheel  4563192 31 Oct  2019 /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.0.4.0.dylib
>>> lrwxr-xr-x  1 root      wheel       37 31 Oct  2019 /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.0.dylib -> libwx_osx_cocoau_core-3.0.0.4.0.dylib
>>> lrwxr-xr-x  1 root      wheel       33 31 Oct  2019 /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib -> libwx_osx_cocoau_core-3.0.0.dylib
>>> 
>>> I have only one referenced:
>>> 
>>> % otool -L /opt/local/bin/gnuplot | grep core  
>>> 	/opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib (compatibility version 5.0.0, current version 5.0.0)
>>> 
>>> and I see no such warnings on Catalina, but perhaps this is related to the new way that dylibs are found on BigSur, and it’s getting confused by the symlink…
>>> 
>>> It’s very hard to imagine nobody would have ever noticed that before, though.
>>> 
>>> Ken
>> 
>> Things seem different on Big Sur.  I don't see any symlinks here:
>> 
>> %  ls -la /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0*
>> -rwxr-xr-x  1 root  wheel  4743504 Nov 23 00:52 /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.0.4.0.dylib
>> -rwxr-xr-x  1 root  wheel  4743504 Nov 23 00:52 /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.0.dylib
>> -rwxr-xr-x  1 root  wheel  4743504 Nov 23 00:52 /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib
> 
> I suspect this is because of this Apple bug that I have mentioned before:
> 
> https://lists.macports.org/pipermail/macports-dev/2020-November/042641.html
> 
> Please check if Xcode 12.3 still has the problem. If it does, please file additional bug reports with Apple about this and mention that it is a duplicate of FB8915358 so that they realize how many people it affects so that they fix it.
> 
This is with XCode 12.3.

I moved libwx_osx_cocoau_core-3.0.0.dylib and libwx_osx_cocoau_core-3.0.dylib aside and symlinked those names to /libwx_osx_cocoau_core-3.0.0.4.0.dylib

 ls -al *core*
-rwxr-xr-x  1 root  wheel  4743504 Nov 23 00:52 libwx_osx_cocoau_core-3.0.0.4.0.dylib
lrwxr-xr-x  1 root  wheel       37 Dec 29 20:44 libwx_osx_cocoau_core-3.0.0.dylib -> libwx_osx_cocoau_core-3.0.0.4.0.dylib
lrwxr-xr-x  1 root  wheel       37 Dec 29 20:44 libwx_osx_cocoau_core-3.0.dylib -> libwx_osx_cocoau_core-3.0.0.4.0.dylib

I rebuilt gnuplot, but still get the same errors:

objc[90874]: Class wxNSAppController is implemented in both /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.0.4.0.dylib (0x10c39fc40) and /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib (0x10b1fbc40). One of the two will be used. Which one is undefined.
objc[90874]: Class ModalDialogDelegate is implemented in both /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.0.4.0.dylib (0x10c39fc68) and /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib (0x10b1fbc68). One of the two will be used. Which one is undefined.
objc[90874]: Class wxNSApplication is implemented in both /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.0.4.0.dylib (0x10c39fcb8) and /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib (0x10b1fbcb8). One of the two will be used. Which one is undefined.

Anything else to try to learn something useful?

Thanks,

Kevin