weston: Add Xwayland initialization support using weston-start

The weston-start script now supports loading modules so the Xwayland
support can be loaded optionally. Use this to load Weston accordingly.

(From OE-Core rev: 4bbb5d5c0a4bed12622d06cd918ecd4d9db68b5e)

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/wayland/weston/xwayland.weston-start

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+if type Xwayland  >/dev/null 2>/dev/null; then
+	mkdir -p /tmp/.X11-unix
+
+	add_weston_argument "--modules=xwayland.so"
+fi

meta/recipes-graphics/wayland/weston_1.10.0.bb

@@ -11,6 +11,7 @@ SRC_URI = "https://wayland.freedesktop.org/releases/${BPN}-${PV}.tar.xz \
            file://make-libwebp-explicitly-configurable.patch \
            file://0001-make-error-portable.patch \
            file://0001-configure.ac-Fix-wayland-protocols-path.patch \
+           file://xwayland.weston-start \
            file://make-weston-launch-exit-for-unrecognized-option.patch \
            file://0001-weston-launch-Provide-a-default-version-that-doesn-t.patch \
 "
@@ -92,7 +93,11 @@ do_install_append() {
 
 		install -d ${D}${datadir}/icons/hicolor/48x48/apps
 		install ${WORKDIR}/weston.png ${D}${datadir}/icons/hicolor/48x48/apps
-        fi
+	fi
+
+	if [ "${@bb.utils.contains('PACKAGECONFIG', 'xwayland', 'yes', 'no', d)}" = "yes" ]; then
+		install -Dm 644 ${WORKDIR}/xwayland.weston-start ${D}${datadir}/weston-start/xwayland
+	fi
 }
 
 PACKAGE_BEFORE_PN += "${PN}-xwayland"