wxWidgets-3.0 warnings with Big Sur

[Kevin Horton]

On Dec 29, 2020, at 17:20, Ken Cunningham <ken.cunningham.webuse at gmail.com> 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

And the files have different inodes, so not hard links either:

% ls -il *core*
68952234 -rwxr-xr-x  1 root  wheel  4743504 Nov 23 00:52 libwx_osx_cocoau_core-3.0.0.4.0.dylib
68952250 -rwxr-xr-x  1 root  wheel  4743504 Nov 23 00:52 libwx_osx_cocoau_core-3.0.0.dylib
68952220 -rwxr-xr-x  1 root  wheel  4743504 Nov 23 00:52 libwx_osx_cocoau_core-3.0.dylib

But only one is found by otool

% 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)

Everything seems to work correctly, if you ignore the spewage, so this likely sits low on the priority list.

Kevin