debugging tmpdir-gcc.dg-struct-layout-1 failures

[Jack Howarth]

Eric,
   Do you see the same set of failures...

> FAIL: tmpdir-gcc.dg-struct-layout-1/t001 c_compat_x_tst.o-c_compat_y_tst.o execute 
> FAIL: tmpdir-gcc.dg-struct-layout-1/t003 c_compat_x_tst.o-c_compat_y_tst.o execute 
> FAIL: tmpdir-gcc.dg-struct-layout-1/t005 c_compat_x_tst.o-c_compat_y_tst.o execute 
> FAIL: tmpdir-gcc.dg-struct-layout-1/t006 c_compat_x_tst.o-c_compat_y_tst.o execute 
> FAIL: tmpdir-gcc.dg-struct-layout-1/t008 c_compat_x_tst.o-c_compat_y_tst.o execute 
> FAIL: tmpdir-gcc.dg-struct-layout-1/t016 c_compat_x_tst.o-c_compat_y_tst.o execute 
> FAIL: tmpdir-gcc.dg-struct-layout-1/t024 c_compat_x_tst.o-c_compat_y_tst.o execute 
> FAIL: tmpdir-gcc.dg-struct-layout-1/t026 c_compat_x_tst.o-c_compat_y_tst.o execute 
> FAIL: tmpdir-gcc.dg-struct-layout-1/t028 c_compat_x_tst.o-c_compat_y_tst.o execute 

..on x86_64 Darwin as I do on Darwin PPC at -m64? Or are these only PPC failures?
             Jack