toolchain/56734: something wrong with libstdc++ (symbol version issue?)

[martin%NetBSD.org@localhost]

>Number:         56734
>Category:       toolchain
>Synopsis:       something wrong with libstdc++ (symbol version issue?)
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 28 19:15:00 +0000 2022
>Originator:     Martin Husemann
>Release:        NetBSD 9.99.93
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD supremacy.duskware.de 9.99.93 NetBSD 9.99.93 (OCTEON) #12: Mon Feb 28 16:02:56 CET 2022 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/evbmips/compile/OCTEON evbmips
Architecture: mipsn64eb
Machine: evbmips
>Description:

Trying to run some c++ programs on 64bit mips fails, example is atf-run(1):

[/tmp] martin@supremacy > atf-run
atf-run: Undefined symbol "_ZNSt15basic_streambufIcSt11char_traitsIcEE7seekoffElSt12_Ios_SeekdirSt13_Ios_Openmode" (symnum = 484)
[/tmp] martin@supremacy > echo "_ZNSt15basic_streambufIcSt11char_traitsIcEE7seekoffElSt12_Ios_SeekdirSt13_Ios_Openmode" | c++filt
_ZNSt15basic_streambufIcSt11char_traitsIcEE7seekoffElSt12_Ios_SeekdirSt13_Ios_Openmode
std::basic_streambuf<char, std::char_traits<char> >::seekoff(long, std::_Ios_Seekdir, std::_Ios_Openmode)
[/tmp] martin@supremacy > nm -C /usr/lib/libstdc++.so.9.0 | fgrep basic_streambuf | fgrep ::seekoff
00000000001492c0 W std::basic_streambuf<char, std::char_traits<char> >::seekoff(long, std::_Ios_Seekdir, std::_Ios_Openmode)
00000000001493c0 W std::basic_streambuf<wchar_t, std::char_traits<wchar_t> >::seekoff(long, std::_Ios_Seekdir, std::_Ios_Openmode)
[/tmp] martin@supremacy >



>How-To-Repeat:
s/a

>Fix:
n/a