* config/mh-dgux386: remove dead code
* config/mh-hp300: remove dead code
* config/mh-hpux: remove dead code
* config/mh-hpux8: remove dead code
* config/mh-irix5: remove dead code
* config/mh-irix6: remove dead code
* config/mh-ncr3000: remove dead code
* config/mh-ncrsvr43: remove dead code
* config/mh-necv4: remove dead code
* config/mh-sco: remove dead code
* config/mh-solaris: remove dead code
* config/mh-sysv: remove dead code
* config/mh-sysv4: remove dead code
* config/mh-sysv5: remove dead code
* config/mh-irix4: remove, contains only dead code
* configure.in: delete reference to absent file
* gdbtypes.h (TYPE_FLAG_VECTOR, TYPE_VECTOR): Define.
* gdbtypes.c (recursive_dump_type): Output the vector flag.
* dwarf2read.c (dwarf_attr_name): Handle new attribute for
vectors.
(read_array_type): Record the fact that this array type is really a
vector (i.e. are passed in by value).
* alpha-tdep.c (alpha_sigcontext_addr): New function.
(alpha_find_saved_regs): Use alpha_sigcontext_addr.
(alpha_gdbarch_init): Initialize tdep->sigcontext_addr.
* alpha-linux-tdep.c: Include frame.h.
(alpha_linux_sigcontext_addr): New function.
(alpha_linux_init_abi): Set tdep->sigcontext_addr to
alpha_linux_sigcontext_addr.
* alpha-osf1-tdep.c: Include gdbcore.h.
(alpha_osf1_sigcontext_addr): New function.
(alpha_osf1_init_abi): Set tdep->sigcontext_addr to
alpha_osf1_sigcontext_addr.
* config/alpha/tm-alpha.h (SIGCONTEXT_ADDR): Remove.
* config/alpha/tm-alphalinux.h (SIGCONTEXT_ADDR): Remove.
generic_save_call_dummy_addr.
* frame.h (generic_save_call_dummy_addr): Declare.
* blockframe.c (struct dummy_frame): Add fields call_lo and
call_hi.
(generic_find_dummy_frame): Check for PC in range call_lo to
call_hi instead of entry_point_address.
(generic_pc_in_call_dummy): Search the dummy frames for a PC in
the call_lo to call_hi range. Allow for DECR_PC_AFTER_BREAK.
(generic_save_call_dummy_addr): New function.
* sparc-tdep.c (sparc_gdbarch_skip_prologue): Kill, duplicates
sparc_skip_prologue.
(sparc_skip_prologue): Kill frameless_p arg, and use line number
information to find prologue when possible.
(sparc_prologue_frameless_p): Call examine_prologue directly.
(sparc_gdbarch_init): Update set_gdbarch_skip_prologue call.
* config/sparc/tm-sparc.h (sparc_skip_prologue): Update for killed
second argument.
(SKIP_PROLOGUE): Likewise.
GDB_TARGET_HAS_SHARED_LIBS #ifdef and update comment to
indicate that the condition it was testing is always true.
* config/alpha/nm-linux.h (GDB_TARGET_HAS_SHARED_LIBS): Remove.
* config/alpha/nm-nbsd.h (GDB_TARGET_HAS_SHARED_LIBS): Ditto.
* config/alpha/nm-osf.h (GDB_TARGET_HAS_SHARED_LIBS): Ditto.