wayland: Build own version of core protocol

Since we are loading shared objects dynamically, build our own version of the
core protocol symbols, so that we in the future can include protocol
extensions.

configure.in

@@ -1201,9 +1201,11 @@ AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for
         if  test x$PKG_CONFIG != xno && \
             test x$video_opengl_egl = xyes && \
             test x$video_opengles_v2 = xyes; then
-            if $PKG_CONFIG --exists wayland-client wayland-egl wayland-cursor egl xkbcommon ; then
+            if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-egl wayland-cursor egl xkbcommon ; then
                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
+                WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
+                WAYLAND_CORE_PROTOCOL_DIR=`$PKG_CONFIG --variable=pkgdatadir wayland-client`
                 video_wayland=yes
             fi
         fi
@@ -1215,7 +1217,7 @@ AC_HELP_STRING([--enable-video-wayland-qt-touch], [QtWayland server support for
                 AC_DEFINE(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH, 1, [ ])
             fi
             SOURCES="$SOURCES $srcdir/src/video/wayland/*.c"
-            EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS"
+            EXTRA_CFLAGS="$EXTRA_CFLAGS $WAYLAND_CFLAGS -I\$(gen)"
             AC_ARG_ENABLE(wayland-shared,
 AC_HELP_STRING([--enable-wayland-shared], [dynamically load Wayland support [[default=maybe]]]),
                           , enable_wayland_shared=maybe)
@@ -3481,6 +3483,33 @@ if test x$SDLMAIN_SOURCES = x; then
 fi
 SDLTEST_SOURCES="$srcdir/src/test/*.c"
 
+if test x$video_wayland = xyes; then
+    WAYLAND_CORE_PROTOCOL_SOURCE='$(gen)/wayland-protocol.c'
+    WAYLAND_CORE_PROTOCOL_HEADER='$(gen)/wayland-client-protocol.h'
+    GEN_SOURCES="$GEN_SOURCES $WAYLAND_CORE_PROTOCOL_SOURCE"
+    GEN_HEADERS="$GEN_HEADERS $WAYLAND_CORE_PROTOCOL_HEADER"
+
+    WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS="
+$WAYLAND_CORE_PROTOCOL_SOURCE: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
+	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
+	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) code \$< \$@"
+
+    WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS="
+$WAYLAND_CORE_PROTOCOL_HEADER: $WAYLAND_CORE_PROTOCOL_DIR/wayland.xml
+	\$(SHELL) \$(auxdir)/mkinstalldirs \$(gen)
+	\$(RUN_CMD_GEN)\$(WAYLAND_SCANNER) client-header \$< \$@"
+
+    WAYLAND_CORE_PROTOCOL_OBJECT="
+\$(objects)/`echo $WAYLAND_CORE_PROTOCOL_SOURCE | sed 's/\$(gen)\/\(.*\).c$/\1.lo/'`: $WAYLAND_CORE_PROTOCOL_SOURCE
+	\$(RUN_CMD_CC)\$(LIBTOOL) --tag=CC --mode=compile \$(CC) \$(CFLAGS) \$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \$< -o \$@"
+
+    WAYLAND_PROTOCOLS_DEPENDS="
+$WAYLAND_CORE_PROTOCOL_SOURCE_DEPENDS
+$WAYLAND_CORE_PROTOCOL_HEADER_DEPENDS
+$WAYLAND_CORE_PROTOCOL_OBJECT
+"
+fi
+
 OBJECTS=`echo $SOURCES`
 DEPENDS=`echo $SOURCES | tr ' ' '\n'`
 for EXT in asm cc m c S; do
@@ -3490,6 +3519,8 @@ for EXT in asm cc m c S; do
 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 done
 
+GEN_OBJECTS=`echo "$GEN_SOURCES" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
+
 VERSION_OBJECTS=`echo $VERSION_SOURCES`
 VERSION_DEPENDS=`echo $VERSION_SOURCES`
 VERSION_OBJECTS=`echo "$VERSION_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.rc,$(objects)/\1.o,g'`
@@ -3567,6 +3598,8 @@ dnl Expand the sources and objects needed to build the library
 AC_SUBST(ac_aux_dir)
 AC_SUBST(INCLUDE)
 AC_SUBST(OBJECTS)
+AC_SUBST(GEN_HEADERS)
+AC_SUBST(GEN_OBJECTS)
 AC_SUBST(VERSION_OBJECTS)
 AC_SUBST(SDLMAIN_OBJECTS)
 AC_SUBST(SDLTEST_OBJECTS)
@@ -3575,6 +3608,7 @@ AC_SUBST(EXTRA_CFLAGS)
 AC_SUBST(BUILD_LDFLAGS)
 AC_SUBST(EXTRA_LDFLAGS)
 AC_SUBST(WINDRES)
+AC_SUBST(WAYLAND_SCANNER)
 
 cat >Makefile.rules <<__EOF__
 
@@ -3587,6 +3621,7 @@ $DEPENDS
 $VERSION_DEPENDS
 $SDLMAIN_DEPENDS
 $SDLTEST_DEPENDS
+$WAYLAND_PROTOCOLS_DEPENDS
 __EOF__
 
 AC_CONFIG_FILES([