* as.c: (perform_an_assembly_pass): moved declaration of i to
avoid a syntax error. Now always create the three default
sections when in MANY_SEGMENTS mode.
* as.h: New improved way of specifying MANY_SEGMENTS
* configure.in: hds object format is now coff-bfd
* subsegs.h: add line numbers and section stuff to the
segment_info structure. (But go back later and fix.. this is
COFF specific)