Created attachment 702096 [details] snip of the build.log sys-devel/gcc-10.3.0 fails build with gcc-11 with : x86_64-pc-linux-gnu-g++: /var/tmp/portage/sys-devel/gcc-10.3.0/work/build/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by x86_64-pc-linux-gnu-g++) make[2]: *** [Makefile:600: findcomp.lo] Error 1
Created attachment 702099 [details] emerge --info =sys-devel/gcc-10.3.0
*** This bug has been marked as a duplicate of bug 761220 ***
(In reply to Sergei Trofimovich from comment #2) > > *** This bug has been marked as a duplicate of bug 761220 *** thanks Sergei Trofimovich FEATURES=-ccache emerge -av =sys-devel/gcc-10.3.0 worked...