+2012-09-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ Simplify SIGIO usage (Bug#12408).
+ The code that dealt with SIGIO was crufty and confusing, e.g., it
+ played tricks like "#undef SIGIO" but these tricks were not used
+ consistently. Simplify mostly by not #undeffing standard symbols,
+ e.g., use "defined USABLE_SIGIO" (our symbol, which we can define
+ or not as we please) rather than "defined SIGIO" (standard symbol
+ that we probably shouldn't #undef).
+ * conf_post.h [USG5_4]: Do not include <sys/wait.h> here.
+ Modules that need it can include it.
+ [USG5_4 && emacs]: Likewise, do not include the streams stuff here.
+ * dispextern.h (ignore_sigio): New decl.
+ * emacs.c (shut_down_emacs): Invoke unrequest_sigio
+ unconditionally, since it's now a no-op if !USABLE_SIGIO.
+ * emacs.c (shut_down_emacs):
+ * keyboard.c (kbd_buffer_store_event_hold):
+ Use ignore_sigio rather than invoking 'signal' directly.
+ * keyboard.c (USABLE_FIONREAD && USG5_4): Include <sys/filio.h>,
+ for FIONREAD.
+ (FIONREAD, SIGIO): Do not #undef.
+ (tty_read_avail_input): Use #error rather than a syntax error.
+ * process.c [USG5_4]: Include <sys/stream.h> and <sys/stropts.h>,
+ for I_PIPE, used by SETUP_SLAVE_PTY.
+ (DATAGRAM_SOCKETS): Simplify defn, based on USABLE_FIONREAD.
+ * sysdep.c (croak): Remove; no longer needed. This bit of
+ temporary code, with Fred N. Fish's comment that it's temporary,
+ has been in Emacs since at least 1992!
+ (init_sigio, reset_sigio, request_sigio, unrequest_sigio):
+ Arrange for them to be no-ops in all cases when ! USABLE_SIGIO.
+ * syssignal.h (croak): Remove decl.
+ (SIGIO, SIGPOO, SIGAIO, SIGPTY): Do not #undef; that's too fragile.
+ * systty.h [!NO_TERMIO]: Do not include <termio.h>; no longer needed
+ now that we're termios-only.
+ (FIONREAD, ASYNC) [BROKEN_FIONREAD]: Do not #undef.
+ * term.c (dissociate_if_controlling_tty): Use #error rather than
+ a run-time error.
+
+ Work around GCC and GNOME bugs when --enable-gcc-warnings.
+ * emacsgtkfixed.c (G_STATIC_ASSERT): Redefine to use 'verify',
+ to work around GNOME bug 683906.
+ * image.c (jpeg_load_body) [HAVE_JPEG && lint]: Pacify gcc -Wclobber.
+ (struct my_jpeg_error_mgr) [HAVE_JPEG && lint]: New member fp.
+ This works around GCC bug 54561.
+
+2012-09-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ More fixes for 'volatile' and setjmp/longjmp.
+ * eval.c (Fdefvar, Fcondition_case): Remove unnecessary 'volatile's.
+ * image.c (struct png_load_context) [HAVE_PNG]: New type.
+ (png_load_body) [HAVE_PNG]:
+ (jpeg_load_body) [HAVE_JPEG]:
+ New function, with most of the old parent function's body.
+ (png_load) [HAVE_PNG]:
+ (jpeg_load) [HAVE_JPEG]:
+ Invoke the new function, to avoid longjmp munging our locals.
+ (struct my_jpeg_error_mgr) [HAVE_JPEG]: New members cinfo, failure_code.
+ (my_error_exit) [HAVE_JPEG]: Don't trust 'setjmp' to return 2 when
+ longjmp is passed 2, as the C standard doesn't guarantee this.
+ Instead, store the failure code into mgr->failure_code.
+
+2012-09-12 Stefan Monnier <monnier@iro.umontreal.ca>
+
+ * keyboard.c (read_char, requeued_events_pending_p, Finput_pending_p)
+ (Fdiscard_input, quit_throw_to_read_char, init_keyboard)
+ (syms_of_keyboard): Remove support for unread-command-char.
+
+2012-09-12 Eli Zaretskii <eliz@gnu.org>
+
+ * w32proc.c (sys_kill): If PID is our process ID and the signal is
+ SIGABRT, call emacs_abort. Avoids silently exiting upon assertion
+ violation. (Bug#12426)
+
+2012-09-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ * image.c (jpeg_memory_src): Don't assume string len fits in unsigned.
+
2012-09-12 Stefan Monnier <monnier@iro.umontreal.ca>
* eval.c: Add `inhibit-debugger'.