libsdl: added patch to fix tearing issues when composite is disabled (thanks to Matt Housh)

libsdl/.md5sum

@@ -1,2 +1,3 @@
 9d96df8417572a2afb781a7c4c811a85  SDL-1.2.15.tar.gz
+9d94caa7f2eef5163f11339cf59e5ed2  libsdl-1.2.15-bs.patch
 ebff7a0aef0b79a0199e394ff9b212ab  libsdl-1.2.x-libx11.patch

libsdl/Pkgfile

@@ -6,14 +6,15 @@
 
 name=libsdl
 version=1.2.15
-release=2
+release=3
 source=(http://www.libsdl.org/release/SDL-$version.tar.gz \
-        $name-1.2.x-libx11.patch)
+        $name-1.2.x-libx11.patch $name-$version-bs.patch)
 
 build () {
   cd SDL-$version
 
   patch -p1 -i $SRC/$name-1.2.x-libx11.patch
+  patch -p1 -i $SRC/$name-$version-bs.patch
 
   ./configure --prefix=/usr \
               --enable-alsa \

libsdl/README

@@ -0,0 +1,8 @@
+
+README for libsdl-1.2.x
+
+NOTES
+
+Backing store is enabled by default. To see more information see:
+https://bugzilla.libsdl.org/show_bug.cgi?id=2383
+https://bugs.freedesktop.org/show_bug.cgi?id=74158

libsdl/libsdl-1.2.15-bs.patch

@@ -0,0 +1,12 @@
+diff -urN SDL-1.2.15.orig/src/video/x11/SDL_x11video.c SDL-1.2.15/src/video/x11/SDL_x11video.c
+--- SDL-1.2.15.orig/src/video/x11/SDL_x11video.c	2012-01-19 00:30:06.000000000 -0600
++++ SDL-1.2.15/src/video/x11/SDL_x11video.c	2014-11-24 11:06:26.103652066 -0600
+@@ -1088,7 +1088,7 @@
+ 		}
+ 	}
+ 
+-#if 0 /* This is an experiment - are the graphics faster now? - nope. */
++#if 1 /* This is an experiment - are the graphics faster now? - nope. */
+ 	if ( SDL_getenv("SDL_VIDEO_X11_BACKINGSTORE") )
+ #endif
+ 	/* Cache the window in the server, when possible */