gcc/testsuite/g++.dg/abi/empty19.h

   1 struct dummy0 { };
   2 struct dummy { struct dummy0 d[0]; };
   3 struct foo
   4 {
   5   int i1;
   6   int i2;
   7   int i3;
   8   int i4;
   9   int i5;
  10 };