https://sourceware.org/bugzilla/show_bug.cgi?id=25355
--- Comment #13 from Sergei Trofimovich <slyfox at inbox dot ru> ---
(In reply to H.J. Lu from comment #12)
> It is independent of -fno-common:
>
>
> [hjl@gnu-cfl-2 pr25355]$ cat x.c
> int nm_test_var = 30;
>
> extern int foo (void);
>
> int
> main ()
> {
> return foo ();
> }
> [hjl@gnu-cfl-2 pr25355]$ gcc -flto -c x.c
> [hjl@gnu-cfl-2 pr25355]$ gcc-nm x.o
> U foo
> 00000000 T main
> 00000000 T nm_test_var
> [hjl@gnu-cfl-2 pr25355]$
Which gcc version you test? gcc-10 switched to -fno-common in
https://gcc.gnu.org/PR85678.
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