Update SDL to version 2.0.14.

libs/SDL2/build-scripts/raspberrypi-buildbot.sh

@@ -28,7 +28,7 @@ if [ "x$MAKE" == "x" ]; then
     MAKE="make -j$NCPU"
 fi
 
-BUILDBOTDIR="raspberrypi-buildbot"
+BUILDBOTDIR="buildbot"
 PARENTDIR="$PWD"
 
 set -e
@@ -49,10 +49,8 @@ $MAKE install
 perl -w -pi -e "s#$PWD/rpi-sdl2-installed#/usr/local#g;" ./rpi-sdl2-installed/lib/libSDL2.la ./rpi-sdl2-installed/lib/pkgconfig/sdl2.pc ./rpi-sdl2-installed/bin/sdl2-config
 mkdir -p ./usr
 mv ./rpi-sdl2-installed ./usr/local
-
+tar -cJvvf $TARBALL usr
 popd
-tar -cJvvf $TARBALL -C $BUILDBOTDIR usr
-rm -rf $BUILDBOTDIR
 
 set +x
 echo "All done. Final installable is in $TARBALL ...";