https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688
--- Comment #24 from Sam James <sam at gentoo dot org> --- (In reply to Vincent Lefèvre from comment #21) > I have a similar issue under Debian/unstable with GCC old of a few months, > where in x86_64-pc-linux-gnu/libstdc++-v3/po, msgfmt fails with an error like > > /usr/bin/msgfmt: > /home/vlefevre/software/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/ > libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by > /usr/lib/x86_64-linux-gnu/libicuuc.so.71) > This issue is, I think, slightly different: https://bugs.gentoo.org/843119. It might end up being related but I've only ever seen *that* issue in the context of installing libstdc++ when doing the gcc build when NLS is enabled and using a newer GCC to do the build of an older version.