gratuitious whitespace changes.
[!HAVE_SIGPROCMASK]: Call sigsetmask if HAVE_SIGSETMASK is defined.
* top.c: Remove redundant logic to define HAVE_SIGSETMASK.
(sigsetmask) Don't define macro.
(stop_sig) [HAVE_SIGPROCMASK]: Add bit of code snatched from
async_stop_sig from event-top.c.
[!HAVE_SIGPROCMASK]: Call sigsetmask if HAVE_SIGSETMASK is
defined.
* configure.in (AC_CHECK_FUNCS): Put functions in alphabetical
order. Add sigsetmask.
(AC_FUNC_VFORK, AC_FUNC_ALLOCA): Reorder such that they're in
alphabetical order.
* config/xm-aix4.h, config/alpha/xm-alphalinux.h,
config/i386/xm-cygwin.h, config/rs6000/xm-rs6000.h
(HAVE_SIGSETMASK): Remove.
* aclocal.m4, config.in, configure
* config/xm-aix4.h (SIGWINCH_HANDLER): Function `aix_resize_window'
must accept a signal number as parameter.
* config/rs6000/xm-rs6000.h (SIGWINCH_HANDLER): Ditto.
* utils.c (initialize_utils): Give a parameter to `SIGWINCH_HANDLER'.
* inferior.h (register_valid): Variable's type is `SIGNED char', not
`char'.
* findvar.c (register_valid): Ditto.
* defs.h (make_cleanup_func): Protect parameter list by `PARAMS'.
* gdbthread.h (unbind_target_thread_vector): Likewise.
is not defined.
(read_register_pid): Only needed when TARGET_READ_PC is not
defined.
* hppa-tdep.c (frame_saved_pc): Remove prototype.
* infptrace.c (udot_info): Prototype when CHILD_XFER_MEMORY is
not defined.
* config/xm-aix4.h (aix_resizewindow): Convert old style decl
to prototype.
* xcoffsolib.c (command.h): Include for needed prototypes.
* configure.in, configure: Recognize rs6000-*-aix4*.
* config/powerpc/xm-aix.h: Reduce to include "xm-aix4.h".
* config/rs6000/aix4.mh (XM_FILE): Point to xm-aix4.h.
* config/rs6000/xm-aix4.h: New file.
* config/xm-aix4.h: New file.
From the Mentor work...enable configure & build on rs6000-ibm-aix4.1.*.
Note this is an unbelievably buggy debugger on this host.
