to do:

fucked up on a.out.gnu.h, etc.
fucked up on foo-opcode.h.
remove the ifdef's from fx_callj tests?
what are callj tests?
search for (), build prototypes.
space tighten sparc alignment.
convert md_ri_to_chars to not pass structs.
convert md_ri_to_chars to emit fixP's.
fix number_to_chars, & family to have no side effects.
prototype.
md_ => tp_
use CROSS_ASSEMBLE
multiple segments.
share b.out with a.out.


stack:
