Update x11/xscreensaver to 5.29.

>From the changelog:

5.29    * Downgraded to Xcode 5.0.2 to make it possible to build savers
          that will still run on 10.6 and 10.7.  Sigh.
        * Updated `webcollage' for recent changes.

5.28    * Fixed some compilation problems and intermittent crashes.
        * Turned off the OSX 10.6 enable_gc hack. It didn't work.

5.27    * New hacks, `tessellimage' and `projectiveplane'.
        * Added support for pthreads, because Dave Odell is a madman.
        * Updated `webcollage' for recent changes.
        * Minor iOS tweaks to the `analogtv' hacks.
        * X11: Don't assume Suspend = 0 implies "No DPMS".
        * Minor updates to `boxed' and `klein'.
        * Fixed possible crash in `apple2', `noseguy', `xmatrix', `shadebobs'.
        * Fixed possible crash in OSX preferences.
        * OSX Performance improvements.
        * Plugged some leaks.

5.26    * More auto-updater tweaks.

5.25    * Try harder to bypass Quarrantine and Gatekeeper in OSX installer.
        * Some files were missing from the tarball.

5.24    * Added "Automatically check for updates" option on OSX.
        * Updated feed-loading for recent Flickr changes.
        * Updated `webcollage' for recent Google changes.
        * Added Instagram and Bing as `webcollage' image sources.
        * Updated to latest autoconf.
        * Bug fixes.

5.23    * New hack, `geodesic'.
        * iOS and OSX: huge XCopyArea performance improvements.
        * More heuristics for using RSS feeds as image sources.
        * Improved Wikipedia parser.
        * Updated `webcollage' for recent Flickr changes.
        * Added Android to `bsod'.
        * OSX: Added a real installer.
        * iOS and OSX: fixed a font-metrics bug.
        * iOS: Fixed aspect ratio bug in non-rotating apps when launched in
          landscape mode.
        * Made `quasicrystal' work on weak graphics cards.
        * iOS: fixed `ifs'.
        * Better compression on icons, plists and XML files: smaller
          distribution and installation footprint.
        * Reverted that DEACTIVATE change. Bad idea.
        * `Phosphor' now supports amber as well as green.


(hauke)

$NetBSD: patch-hacks_Makefile.in,v 1.1 2014/08/12 15:57:14 hauke Exp $

--- hacks/Makefile.in.orig	2014-06-08 21:43:53.000000000 +0000
+++ hacks/Makefile.in
@@ -671,7 +671,7 @@ truchet:	 truchet.o	$(HACK_OBJS) $(COL)
 	$(CC_HACK) -o $@ $@.o	$(HACK_OBJS) $(COL) $(HACK_LIBS)
 
 bsod:	 	bsod.o		$(HACK_OBJS) $(GRAB) $(APPLE2) $(XPM)
-	$(CC_HACK) -o $@ $@.o	$(HACK_OBJS) $(GRAB) $(APPLE2) $(XPM) $(XPM_LIBS)
+	$(CC_HACK) -o $@ $@.o	$(HACK_OBJS) $(GRAB) $(APPLE2) $(XPM) $(XPM_LIBS) $(THRL)
 
 apple2:	 	apple2.o apple2-main.o	$(HACK_OBJS) $(ATV) $(GRAB) $(TEXT)
 	$(CC_HACK) -o $@ $@.o	apple2-main.o $(HACK_OBJS) $(ATV) $(GRAB) $(TEXT) $(XPM_LIBS) $(TEXT_LIBS) $(THRL)

$NetBSD: patch-hacks_memscroller.c,v 1.1 2014/08/12 15:57:14 hauke Exp $

--- hacks/memscroller.c.orig	2014-05-31 00:56:20.000000000 +0000
+++ hacks/memscroller.c
@@ -301,6 +301,11 @@ open_file (state *st)
 }
 #endif
 
+#ifdef HAVE_SBRK  /* re-get it each time through */
+#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2) ) /* gcc >= 4.2 */
+#   pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#  endif
+#endif
 
 static unsigned int
 more_bits (state *st, scroller *sc)
@@ -349,9 +354,6 @@ more_bits (state *st, scroller *sc)
          from earlier days before the advent of virtual memory management."
             -- sbrk(2) man page on MacOS
        */
-#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2)) /* gcc >= 4.2 */
-#   pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-#  endif
       himem = ((unsigned char *) sbrk(0)) - (2 * sizeof(void *));
 # endif