get linked to nm.h, xm.h, and tm.h respectively by configure,
moved to appropriate config/<cpu> subdirectory.
* nm-sysv4.h, xm-sysv4.h, tm-sysv4.h, tm-sunos.h, nm-trash.h:
Native, host, and target files that are common across more than
one cpu architecture and included by one of the configured
native, host, or target files, get moved to config directory.
* mipsread.c (parse_partial_symbols): Complain about block
indexes that go backwards. Fix from Peter Schauer.
* symfile.c (syms_from_objfile, symbol_file_add): Allow a
symbol-file that has no linkage symbols to be read.
* tm-rs6000.h, xm-rs6000.h: (SIGWINCH_HANDLER and friends): Move
from tm- file to xm-file, since they're host dependent.
* valarith.c (value_binop): Typo.
* infptrace.c: remove #ifdef USG from around include ptrace.h.
machines without this header should not be compiling this file.
* nm-rs6000.h, rs6000-nat.c: new files for native support.
* rs6000-tdep.c: do not include sys/ptrace.h or sys/reg.h.
* rs6000-xdep.c: removed. all code now in rs6000-nat.c.
* xm-rs6000.h: do not include ptrace.h.
(ATTACH_DETACH, FETCH_INFERIOR_REGISTERS): moved to nm-rs6000.h.
* config/rs6000.mh (XDEPFILES): removed rs6000-xdep.o.
infptrace.o and inftarg.o move to NATDEPFIES.
(NAT_FILE, NATDEPFILES): new macro for native support.
* remote-vx.c: redefine malloc to avoid buggy declaration on
RS/6000 <rpc/types.h>.
xm-rs6000.h: include <sys/select.h> to define fd_set for
<rpc/svc.h> on RS/6000.
declarations of malloc/realloc/free that are inserted by some
versions of yacc.
* m2-exp.y: Prevent conflicts with TRUE and FALSE tokens by
#undeffing them.
* xm-rs6000.h: Declare malloc/realloc/free appropriately. Yet
another decl of strdup (this really ought to come from libiberty.h!).
