non-mulit-arch compiles probs

[Andrew Cagney]

FYI,

The file std-regs.c doesn't compile with -Werror on non-multi-arch 
targets.  They all dropped like flies.

Adding to the fun, I've found an entry for the ``how did this ever 
compile'' category:

exec.c:print_section_info (struct target_ops *t, bfd *abfd)
maint.c:print_section_info (const char *name, flagword flags,

(one is static, the other has a .h declaration).

fixing ...
Andrew