[Bug libstdc++/120315] std::format gcc 14 / 15 interop issue

[nilsgladitz at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120315

--- Comment #3 from Nils Gladitz <nilsgladitz at gmail dot com> ---
Yes sorry I should have clarified.

I use the following before running the binaries:
export LD_LIBRARY_PATH=/opt/gcc-15.1.0/lib64

ldd correspondingly confirms:
libstdc++.so.6 => /opt/gcc-15.1.0/lib64/libstdc++.so.6 (0x00007ccceda00000)