On Sat, 22 Feb 2025, 14:36 Saifi Khan, <saifi@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > On Sat, 22 Feb 2025, Xi Ruoyao via Gcc-help wrote: > > > On Sat, 2025-02-22 at 14:13 +0000, SAIFI wrote: > >> Hi: > >> > >> Encountering this error on a daily automated GCC build. > >> > >> Error: symbol `_GLOBAL__sub_I.00099_tzdb.cc' is already defined > > > > https://gcc.gnu.org/PR118981 > > > > 谢谢 Xi Ruoyao! i hadn't seen this PR earlier. > > On compiling the code, as per Jonathan in comment#6, the following output > is seen > > g++ -std=c++26 -c jw_01.cc > > jw_01.cc:3:30: warning: requested ‘init_priority’ 99 is reserved for > internal use > 3 | [[gnu::init_priority(99)]] A a; > | ^ > jw_01.cc:4:30: warning: requested ‘init_priority’ 99 is reserved for > internal use > 4 | [[gnu::init_priority(99)]] A a2; > | ^~ > jw_01.cc:6:30: warning: requested ‘init_priority’ 99 is reserved for > internal use > 6 | [[gnu::init_priority(99)]] B b; > You didn't say how your configuring GCC but it looks like you're using vtable-verify and so is the bug reporter. That's probably the cause, maybe there's a bug in the vtv codegen. I don't think vtv is very well tested. > > >
