wayland: Stop trying to use make rules from aclocal, just copy and paste

Defeated by autotool, copy and paste to the rescue.

https://bugs.freedesktop.org/show_bug.cgi?id=51997
https://bugs.freedesktop.org/show_bug.cgi?id=51531

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>

configure.ac

@@ -1728,8 +1728,9 @@ for plat in $egl_platforms; do
 				  [AC_MSG_ERROR([cannot find libwayland-client])])
 		GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/wayland"
 
-		m4_ifdef([WAYLAND_SCANNER_RULES],
-		         [WAYLAND_SCANNER_RULES(['$(top_srcdir)/src/egl/wayland/wayland-drm/protocol'])])
+                WAYLAND_PREFIX=`$PKG_CONFIG --variable=prefix wayland-client`
+                AC_PATH_PROG([WAYLAND_SCANNER], [wayland-scanner],,
+                             [${WAYLAND_PREFIX}/bin$PATH_SEPARATOR$PATH])
 		;;
 
 	x11)

src/egl/wayland/wayland-drm/Makefile.am

@@ -12,4 +12,11 @@ BUILT_SOURCES = wayland-drm-protocol.c \
 		wayland-drm-server-protocol.h
 CLEANFILES = $(BUILT_SOURCES)
 
-@wayland_scanner_rules@
+%-protocol.c : %.xml
+	$(AM_V_GEN)$(WAYLAND_SCANNER) code < $< > $@
+
+%-server-protocol.h : %.xml
+	$(AM_V_GEN)$(WAYLAND_SCANNER) server-header < $< > $@
+
+%-client-protocol.h : %.xml
+	$(AM_V_GEN)$(WAYLAND_SCANNER) client-header < $< > $@