RHEL 8 system gcc was last updated in #1868446: %global DATE 20200928 we should consider updating gcc from upstream GCC 8.4, which contains a lot of bugfixes.
g++.dg/template/pr98297.C fails, but that's only a test issue: $ xg++-8 -c pr98297.C pr98297.C:5:1: warning: ‘b’ attribute directive ignored [-Wattributes] a <int>; // { dg-error "does not declare anything" } ^~~~~~~ pr98297.C:5:1: error: name of class shadows template template parameter ‘a’ $ xg++-9 -c pr98297.C pr98297.C:5:1: warning: ‘b’ attribute directive ignored [-Wattributes] 5 | a <int>; // { dg-error "does not declare anything" } | ^~~~~~~ pr98297.C:5:1: error: declaration does not declare anything [-fpermissive]
(In reply to Marek Polacek from comment #1) > g++.dg/template/pr98297.C fails, but that's only a test issue: > > $ xg++-8 -c pr98297.C > pr98297.C:5:1: warning: ‘b’ attribute directive ignored [-Wattributes] > a <int>; // { dg-error "does not declare anything" } > ^~~~~~~ > pr98297.C:5:1: error: name of class shadows template template parameter ‘a’ > > $ xg++-9 -c pr98297.C > pr98297.C:5:1: warning: ‘b’ attribute directive ignored [-Wattributes] > 5 | a <int>; // { dg-error "does not declare anything" } > | ^~~~~~~ > pr98297.C:5:1: error: declaration does not declare anything [-fpermissive] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98358
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Low: gcc security and bug fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2021:4386