/*
ccS4Yv9F.o:(.gnu.linkonce.r._ZZN1A4funcEvE3var+0x0): undefined reference to `outer()'
ERROR.

Relocation section '.rela.gnu.linkonce.r._ZZN1A4funcEvE3var' at offset 0x788 contains 1 entries:
    Offset             Info             Type               Symbol's Value  Symbol's Name + Addend
0000000000000000  0000000d00000001 R_X86_64_64            0000000000000000 _Z5outerv + 0

Symbol table '.symtab' contains 15 entries:
   Num:    Value          Size Type    Bind   Vis      Ndx Name
    13: 0000000000000000     0 NOTYPE  GLOBAL DEFAULT  UND _Z5outerv
*/

extern int outer (void);

class A
{
public:
  inline int func (void)
  {
    static int (*const var[]) (void) = { outer };

    return (var[0]) ();
  };
};

int
main ()
{
  A a_var;

  return a_var.func ();
}