[Bug libobjc/61920] [4.8/4.9/4.10 Regression] libobjc has undefined symbols on powerpc*-linux-gnu

[uweigand at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61920

--- Comment #6 from Ulrich Weigand <uweigand at gcc dot gnu.org> ---
Since we didn't backport the actual ABI change to the branches, only the
warning, I think it would be consistent to use something like this on the
branches:

#define rs6000_special_adjust_field_align_p(FIELD, COMPUTED) \
  (TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE)

rather than the #define ... 0 that is appropriate for mainline.