enum { BFD_ENDIAN_BIG, ...}

[Alan Modra]

While we're on this subject, note that initialising pointers (and FP) to
all-bits-zero via memset is not strictly portable.  Not all architectures
represent a NULL pointer as all-bits-zero.  The C-FAQ mentions a number
of such machines.  http://www.eskimo.com/~scs/C-faq/top.html

Alan