wxWidgets-3.0 warnings with Big Sur

[Kevin Horton]

I'm running macOS 11.1 and followed the migration instructions.  Today I ran gnuplot for the first time, and the CLI spewed out over 400 lines of warnings related to wxWidgets.  The first few lines were:

objc[53143]: 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 (0x10bf24c40) and /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib (0x10ad85c40). One of the two will be used. Which one is undefined.
objc[53143]: 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 (0x10bf24c68) and /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib (0x10ad85c68). One of the two will be used. Which one is undefined.
objc[53143]: 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 (0x10bf24cb8) and /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_core-3.0.dylib (0x10ad85cb8). One of the two will be used. Which one is undefined.

I uninstalled gnuplot, wxWidgets-3.0, wxWidgets-common  and wxWidgets_select and then installed them to force a rebuild.  No change.

Gnuplot appears to work normally, so no panic.

Is there anything else I should try before filing a bug?

Thanks,

Kevin