[Bug ipa/85801] LTO linking fails to reconcile symbol from common an data sections (-fPIE -Wl, --as-needed -flto): unresolvable R_ARM_REL32 relocation against symbol `progname'

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85801

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu.org
             Target|arm                         |arm, aarch64
   Last reconfirmed|2018-05-17 00:00:00         |2021-9-10

--- Comment #12 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So obvious in GCC 10+, this fails for all targets even without lto since the
default is now -fno-common.

Change:
char * progname;
to:
char * progname __attribute__((common));

Will allow it to work without LTO.