WinRT: fixed bug whereby SDL would override an app's default orientation

WinRT apps can set a default, preferred orientation via a .appxmanifest file.
SDL was overriding this on app startup, and making the app use all possible
orientations (landscape and portrait).

Thanks to Eric Wing for the heads up on this!

build-scripts/raspberrypi-buildbot.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+# This is the script buildbot.libsdl.org uses to cross-compile SDL2 from
+#  x86 Linux to Raspberry Pi.
+
+# The final tarball can be unpacked in the root directory of a RPi,
+#  so the SDL2 install lands in /usr/local. Run ldconfig, and then
+#  you should be able to build and run SDL2-based software on your
+#  Pi. Standard configure scripts should be able to find SDL and
+#  build against it, and sdl2-config should work correctly on the
+#  actual device.
+
+TARBALL="$1"
+if [ -z $1 ]; then
+    TARBALL=sdl-raspberrypi.tar.xz
+fi
+
+OSTYPE=`uname -s`
+if [ "$OSTYPE" != "Linux" ]; then
+    # !!! FIXME
+    echo "This only works on x86 or x64-64 Linux at the moment." 1>&2
+    exit 1
+fi
+
+if [ "x$MAKE" == "x" ]; then
+    NCPU=`cat /proc/cpuinfo |grep vendor_id |wc -l`
+    let NCPU=$NCPU+1
+    MAKE="make -j$NCPU"
+fi
+
+BUILDBOTDIR="raspberrypi-buildbot"
+PARENTDIR="$PWD"
+
+set -e
+set -x
+rm -f $TARBALL
+rm -rf $BUILDBOTDIR
+mkdir -p $BUILDBOTDIR
+pushd $BUILDBOTDIR
+
+SYSROOT="/opt/rpi-sysroot"
+export CC="ccache /opt/rpi-tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-gcc --sysroot=$SYSROOT -I$SYSROOT/opt/vc/include -I$SYSROOT/usr/include -I$SYSROOT/opt/vc/include/interface/vcos/pthreads -I$SYSROOT/opt/vc/include/interface/vmcs_host/linux -L$SYSROOT/opt/vc/lib"
+# -L$SYSROOT/usr/lib/arm-linux-gnueabihf"
+# !!! FIXME: shouldn't have to --disable-* things here.
+../configure --with-sysroot=$SYSROOT --host=arm-raspberry-linux-gnueabihf --prefix=$PWD/rpi-sdl2-installed --disable-pulseaudio --disable-esd --disable-video-mir --disable-video-wayland
+$MAKE
+$MAKE install
+# Fix up a few things to a real install path on a real Raspberry Pi...
+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
+
+popd
+tar -cJvvf $TARBALL -C $BUILDBOTDIR usr
+rm -rf $BUILDBOTDIR
+
+set +x
+echo "All done. Final installable is in $TARBALL ...";
+
+