Update _XData32 declaration in SDL_x11sym.h to match that of libx11 1.6.

--- SDL-1.2.15/src/video/x11/SDL_x11sym.h.~1~	2012-01-19 01:30:06.000000000 -0500
+++ SDL-1.2.15/src/video/x11/SDL_x11sym.h	2014-12-26 00:22:36.445067694 -0500
@@ -165,7 +165,7 @@
  */
 #ifdef LONG64
 SDL_X11_MODULE(IO_32BIT)
-SDL_X11_SYM(int,_XData32,(Display *dpy,register long *data,unsigned len),(dpy,data,len),return)
+SDL_X11_SYM(int,_XData32,(Display *dpy,register _Xconst long *data,unsigned len),(dpy,data,len),return)
 SDL_X11_SYM(void,_XRead32,(Display *dpy,register long *data,long len),(dpy,data,len),)
 #endif
 
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<tr><td><span title='2022-04-14 14:48:20 +0200'>2022-04-14</span></td><td><a href='/guix/commit/nix/nix-daemon?id=5f74169e8e03e64a15499866c6a6de9f38d36f2d'>daemon: Support systemd-style socket activation.</a><span class='msg-avail'>...<span class='msg-tooltip'>* nix/nix-daemon/guix-daemon.cc (SD_LISTEN_FDS_START): New macro.
(systemd_activation_sockets): New function.
(main): Use it.  Remove obsolete 'printMsg' call.
* doc/guix.texi (Invoking guix-daemon): Document socket activation.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-04-03 22:08:33 +0200'>2021-04-03</span></td><td><a href='/guix/commit/nix/nix-daemon?id=222fff253c6c6a3d1def16ed90723d7f2c4f9b89'>daemon: Remove dead code.</a><span class='msg-avail'>...<span class='msg-tooltip'>Reported by Noisytoot on #guix.

* nix/nix-daemon/shared.hh (showManPage): Remove.
* nix/nix-daemon/nix-daemon.cc (printHelp, programId): Remove.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-17 12:03:23 +0100'>2021-03-17</span></td><td><a href='/guix/commit/nix/nix-daemon?id=bc3896db25c788c181c7bcd65754e7cd378e9d9f'>daemon: Correctly handle '--discover' with no value.</a><span class='msg-avail'>...<span class='msg-tooltip'>Previously, we'd get:

  $ guix-daemon --discover
  error: basic_string::_M_construct null not valid

* nix/nix-daemon/guix-daemon.cc (parse_opt): Change second argument to
'settings.set' to properly handle case where ARG is NULL.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-11-29 15:08:26 +0100'>2020-11-29</span></td><td><a href='/guix/commit/nix/nix-daemon?id=79f9dee3c4c0e6d21066f142116a537207ae7ba4'>Use substitute servers on the local network.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/discover.scm: New file.
* Makefile.am (MODULES): Add it.
* nix/nix-daemon/guix-daemon.cc (options): Add "discover" option,
(parse-opt): parse it,
(main): start "guix discover" process when the option is set.
* guix/scripts/substitute.scm (%local-substitute-urls): New variable,
(substitute-urls): add it.
* gnu/services/base.scm (&lt;guix-configuration&gt;): Add "discover?"
field,
(guix-shepherd-service): honor it.
* doc/guix.texi (Invoking guix-daemon): Document "discover" option,
(Base Services): ditto.
</span></span></td><td>Mathieu Othacehe</td></tr>