wxmaxima crashes on macOS Big Sur v11k - conflicting wxWidget libs

[chlangley]

installing wxmaxima (20.04) into a fresh macport (macOS Big Sur v11) the app crashes immediately with the following complaint in the log:

Dec 28 23:46:53 rootless8 wxmaxima[91466]: objc[91466]: Class wxOSXStatusItemTarget is implemented in both /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_adv-3.0.0.4.0.dylib (0x105e5a6d8) and /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/libwx_osx_cocoau_adv-3.0.dylib (0x1048056d8). One of the two will be used. Which one is undefined.

[ryandesign (Ryan Carsten Schmidt)]

That message may or may not be relevant to the crash. Please attach the full crash log.

[ggruener]

The is implemented in both... warning is repeated very many times.

These warnings are then followed by very many

../src/common/object.cpp(251): assert "classTable->Get(m_className) == NULL" failed in Register(): Class "wxCommandEvent" already in RTTI table - have you used IMPLEMENT_DYNAMIC_CLASS() multiple times or linked some object file twice)?

And then

 ../src/common/stdpbase.cpp(62): assert "traits" failed in Get(): create wxApp before calling this
Segmentation fault

Inspecting /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/ shows that three equal files exist per each lib instead of two symbolic links pointing to the versioned lib. For example:

-rwxr-xr-x  1 root  wheel   743K Nov 23 09:52 libwx_osx_cocoau_xrc-3.0.0.4.0.dylib*
-rwxr-xr-x  1 root  wheel   743K Nov 23 09:52 libwx_osx_cocoau_xrc-3.0.0.dylib*
-rwxr-xr-x  1 root  wheel   743K Nov 23 09:52 libwx_osx_cocoau_xrc-3.0.dylib*

Making symbolic links to the versioned lib fixes the problem. For example:

-rwxr-xr-x   1 root  wheel   743K Nov 23 09:52 libwx_osx_cocoau_xrc-3.0.0.4.0.dylib*
lrwxr-xr-x   1 root  wheel    36B Dec 29 15:25 libwx_osx_cocoau_xrc-3.0.0.dylib@ -> libwx_osx_cocoau_xrc-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel    32B Dec 29 15:25 libwx_osx_cocoau_xrc-3.0.dylib@ -> libwx_osx_cocoau_xrc-3.0.0.dylib

I fixed the symlinks for all libs in the directory. After this fix, wxmaxima starts correctly without warning.

So I guess the source of the problem lies in the installation of port wxWidgets-3.0. Perhaps it can be corrected to create symlinks instead of copies of the libs.

[MSoegtropIMC]

Thanks for the report and the propsed fix! I just would say that this isn't an issue of wxMaxima, but an issue of wxWidgets and should be reported there. I don't think it would be appropriate for wxMaxima to change symlinks/files of other packages.

Please don't close the ticket until it is fixed in wxWidgets, so that people can see your porposed fix!

[MSoegtropIMC]

P.S.: If I don't hear from you that you want to report it to wxWidgets, I will do so tomorrow.

[kencu (Ken)]

this is due to a bug in Apple's install_name_tool.

See this current email chain: <​https://lists.macports.org/pipermail/macports-users/2020-December/049255.html>

There is nothing wrong with wxWidgets, although it uses install_name_tool and so reveals the bug.

The proper fix is to fix install_name_tool, although folks might need to work around this issue until that is done.

[kencu (Ken)]

I just rebuilt wxWidgets-3.0 from source, and this is fixed now.

WxMaxima works fine as well, once that is done.

Presumably some recent Xcode update fixed it.

% cd /opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/
% ls -la
total 11992
drwxr-xr-x  48 root  wheel     1536 18 Feb 22:30 .
drwxr-xr-x   6 root  wheel      192 18 Feb 22:30 ..
-rwxr-xr-x   1 root  wheel  1966728 18 Feb 22:28 libwx_baseu-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       27 18 Feb 22:28 libwx_baseu-3.0.0.dylib -> libwx_baseu-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       23 18 Feb 22:28 libwx_baseu-3.0.dylib -> libwx_baseu-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   263184 18 Feb 22:28 libwx_baseu_net-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       31 18 Feb 22:28 libwx_baseu_net-3.0.0.dylib -> libwx_baseu_net-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       27 18 Feb 22:28 libwx_baseu_net-3.0.dylib -> libwx_baseu_net-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   102384 18 Feb 22:28 libwx_baseu_xml-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       31 18 Feb 22:28 libwx_baseu_xml-3.0.0.dylib -> libwx_baseu_xml-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       27 18 Feb 22:28 libwx_baseu_xml-3.0.dylib -> libwx_baseu_xml-3.0.0.dylib
-rwxr-xr-x   1 root  wheel  1458656 18 Feb 22:28 libwx_osx_cocoau_adv-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       36 18 Feb 22:28 libwx_osx_cocoau_adv-3.0.0.dylib -> libwx_osx_cocoau_adv-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       32 18 Feb 22:28 libwx_osx_cocoau_adv-3.0.dylib -> libwx_osx_cocoau_adv-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   529784 18 Feb 22:28 libwx_osx_cocoau_aui-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       36 18 Feb 22:28 libwx_osx_cocoau_aui-3.0.0.dylib -> libwx_osx_cocoau_aui-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       32 18 Feb 22:28 libwx_osx_cocoau_aui-3.0.dylib -> libwx_osx_cocoau_aui-3.0.0.dylib
-rwxr-xr-x   1 root  wheel  4743504 18 Feb 22:28 libwx_osx_cocoau_core-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       37 18 Feb 22:28 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 18 Feb 22:28 libwx_osx_cocoau_core-3.0.dylib -> libwx_osx_cocoau_core-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   126808 18 Feb 22:28 libwx_osx_cocoau_gl-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       35 18 Feb 22:28 libwx_osx_cocoau_gl-3.0.0.dylib -> libwx_osx_cocoau_gl-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       31 18 Feb 22:28 libwx_osx_cocoau_gl-3.0.dylib -> libwx_osx_cocoau_gl-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   741384 18 Feb 22:28 libwx_osx_cocoau_html-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       37 18 Feb 22:28 libwx_osx_cocoau_html-3.0.0.dylib -> libwx_osx_cocoau_html-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       33 18 Feb 22:28 libwx_osx_cocoau_html-3.0.dylib -> libwx_osx_cocoau_html-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   122184 18 Feb 22:28 libwx_osx_cocoau_media-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       38 18 Feb 22:28 libwx_osx_cocoau_media-3.0.0.dylib -> libwx_osx_cocoau_media-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       34 18 Feb 22:28 libwx_osx_cocoau_media-3.0.dylib -> libwx_osx_cocoau_media-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   816512 18 Feb 22:28 libwx_osx_cocoau_propgrid-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       41 18 Feb 22:28 libwx_osx_cocoau_propgrid-3.0.0.dylib -> libwx_osx_cocoau_propgrid-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       37 18 Feb 22:28 libwx_osx_cocoau_propgrid-3.0.dylib -> libwx_osx_cocoau_propgrid-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   200936 18 Feb 22:28 libwx_osx_cocoau_qa-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       35 18 Feb 22:28 libwx_osx_cocoau_qa-3.0.0.dylib -> libwx_osx_cocoau_qa-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       31 18 Feb 22:28 libwx_osx_cocoau_qa-3.0.dylib -> libwx_osx_cocoau_qa-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   462688 18 Feb 22:28 libwx_osx_cocoau_ribbon-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       39 18 Feb 22:28 libwx_osx_cocoau_ribbon-3.0.0.dylib -> libwx_osx_cocoau_ribbon-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       35 18 Feb 22:28 libwx_osx_cocoau_ribbon-3.0.dylib -> libwx_osx_cocoau_ribbon-3.0.0.dylib
-rwxr-xr-x   1 root  wheel  1545184 18 Feb 22:28 libwx_osx_cocoau_richtext-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       41 18 Feb 22:28 libwx_osx_cocoau_richtext-3.0.0.dylib -> libwx_osx_cocoau_richtext-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       37 18 Feb 22:28 libwx_osx_cocoau_richtext-3.0.dylib -> libwx_osx_cocoau_richtext-3.0.0.dylib
-rwxr-xr-x   1 root  wheel  1208952 18 Feb 22:28 libwx_osx_cocoau_stc-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       36 18 Feb 22:28 libwx_osx_cocoau_stc-3.0.0.dylib -> libwx_osx_cocoau_stc-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       32 18 Feb 22:28 libwx_osx_cocoau_stc-3.0.dylib -> libwx_osx_cocoau_stc-3.0.0.dylib
-rwxr-xr-x   1 root  wheel   761040 18 Feb 22:28 libwx_osx_cocoau_xrc-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       36 18 Feb 22:28 libwx_osx_cocoau_xrc-3.0.0.dylib -> libwx_osx_cocoau_xrc-3.0.0.4.0.dylib
lrwxr-xr-x   1 root  wheel       32 18 Feb 22:28 libwx_osx_cocoau_xrc-3.0.dylib -> libwx_osx_cocoau_xrc-3.0.0.dylib
drwxr-xr-x   4 root  wheel      128 18 Feb 22:30 wx

[kencu (Ken)]

I would revbump wxWidgets-3.0 to fix it, but there is no way to know what is on the BuildBot right now, so others can sort that out.

[MSoegtropIMC]

Do you rebuild it using a MacPorts package or do you rebuild it from wxWidgets sources?

I would say the issue is in the MacPorts package, because it installs multiple different versions of the shared libraries.

[kencu (Ken)]

sudo port -f uninstall wxwidgets-3.0
sudo port -v -s install wxwidgets-3.0

[kencu (Ken)]

The issue was with install_name_tool on older versions of Xcode 12 <​https://lists.macports.org/pipermail/macports-dev/2020-November/042641.html> and it appears to be fixed now, since some upgrade to Xcode 12:

% ls -la
total 152
drwxr-xr-x  6 root  admin    192 20 Feb 10:06 .
drwxr-xr-x  4 root  admin    128 20 Feb 10:06 ..
-rwxrwxrwx  1 root  admin  75448 20 Feb 10:06 libtalloc.2.3.1.dylib
lrwxr-xr-x  1 root  admin     21 20 Feb 10:06 libtalloc.2.dylib -> libtalloc.2.3.1.dylib
lrwxr-xr-x  1 root  admin     21 20 Feb 10:06 libtalloc.dylib -> libtalloc.2.3.1.dylib
drwxrwxrwx  3 root  admin     96 20 Feb 10:06 pkgconfig


% install_name_tool -id /opt/local/lib/libtalloc.2.dylib libtalloc.dylib

% ls -la
total 152
drwxr-xr-x  6 root  admin    192 20 Feb 10:08 .
drwxr-xr-x  4 root  admin    128 20 Feb 10:06 ..
-rwxr-xr-x  1 root  admin  75448 20 Feb 10:08 libtalloc.2.3.1.dylib
lrwxr-xr-x  1 root  admin     21 20 Feb 10:06 libtalloc.2.dylib -> libtalloc.2.3.1.dylib
lrwxr-xr-x  1 root  admin     21 20 Feb 10:06 libtalloc.dylib -> libtalloc.2.3.1.dylib
drwxrwxrwx  3 root  admin     96 20 Feb 10:06 pkgconfig

So once someone knows if the BigSur buildbot has the current version of Xcode 12 on it, revbump wxWidgets-3.0 and you will get a new build of it, not broken, that should work just as good as mine does now.

[MSoegtropIMC]

sudo port -f uninstall wxwidgets-3.0
sudo port -v -s install wxwidgets-3.0

I can conform that this works - thanks for finding the root cause of this issue!

[MSoegtropIMC]

I created a ticket for wxwidgets (#62348).

[ryandesign (Ryan Carsten Schmidt)]

Replying to kencu:

I would revbump wxWidgets-3.0 to fix it, but there is no way to know what is on the BuildBot right now, so others can sort that out.

Buildbot worker OS and Xcode version information is available via the web interface. See e.g. ​https://build.macports.org/buildslaves/ports-11_x86_64.

[MSoegtropIMC]

The version listed there (clang-1200.0.32.27) is older than my "known to work" version which is (clang-1200.0.32.29), but I can't say if (clang-1200.0.32.27) doesn't work - all I know is that with whatever build server the current wxWidgets libs have been build does not work. Can one find out with which version the current wxWidgets libs have been built, e.g. by inspecting the binaries?

[ryandesign (Ryan Carsten Schmidt)]

As far as I know, the version of clang is irrelevant. The problem is install_name_tool. I don't know how to determine which version of install_name_tool or clang was used to build something.

I've updated both of the macOS 11 worker machines to macOS 11.2.3 and Xcode 12.4.

[MSoegtropIMC]

This ticket is fixed by updating XCode on the CI runners and recompiling wxWidgets. The issue can be closed.

[MSoegtropIMC]

To whom it may concern: please close this ticket - it is fixed since almost 2 years.

I find it super odd that I can't close tickets, btw. What is the recommended procedure? Reassign it to the original reporter? This might not work well unless the reporter is active regularly. Sure (s)he will get an email, but might choose to ignore it and that's it then. This strange policy is not very friendly to maintainers.