在 2023/12/1 17:09, Richard Biener via Gcc 写道:
> Hmm, so why's it then referenced and not "GCed"?
> 
> The classical "solution" is to make the reference weak via sth like
> 
> extern typeof(fork) fork () __attribute__((weak));

There are issues about weak symbols on mingw targets. Calls to weak functions can jump to random, 
non-allocated memory and cause faults. Instead, duplicates of COMDAT sections are removed by the 
`.linkonce discard` directive.


-- 
Best regards,
LIU Hao