On 2 Oct 2023, at 22:00, Joel Bodenmann <j...@freebsd.org> wrote: > > It seems like I finally managed to hose a FreeBSD system. > The machine in question is my workstation at home. It has been running > stable/13 without any problems. Yesterday I've updated to > ef295f69abbffb3447771a30df6906ca56a5d0c0 and since then I'm getting an > undefined symbol on anything using Qt: > > ld-elf.so.1: /usr/local/lib/qt5/libQt5Widgets.so.5: Undefined symbol > "_ZTVNSt3__13pmr25monotonic_buffer_resourceE" > > Unless I'm missing something, it would seem like my base libc++ > is missing the pmr::monotonic_buffer_resource symbol.
It should be in libc++.so.1, you can check this with grep. If it is not there, there might have been some issue installing a newly built copy of libc++.so.1 into your file system? You could check if there is a memory_resource.pico file in your /usr/obj; it should typically be in /usr/obj/usr/src/amd64.amd64/lib/libc++. The libc++.so.1 file in that directory should definitely have the symbol. Another possibility is that Qt is doing something strange when loading their shared libraries. It has been known to perform weird tricks... -Dimitry
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