Add x11 backend for compositor
This still needs all the bells and whistles from the egl-kms mesa branch,
but it makes it a lot easier to work on wayland.
diff --git a/configure.ac b/configure.ac
index 4040121..8097035 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@
PKG_CHECK_MODULES(FFI, [libffi])
PKG_CHECK_MODULES(COMPOSITOR,
- [egl gl libpng cairo gdk-pixbuf-2.0 libudev >= 136 libdrm >= 2.4.17])
+ [egl gl libpng cairo gdk-pixbuf-2.0 libudev >= 136 libdrm >= 2.4.17] xcb-dri2 xcb-xfixes)
PKG_CHECK_MODULES(CLIENT, [egl gl cairo-gl gdk-pixbuf-2.0 glib-2.0 gobject-2.0])
PKG_CHECK_MODULES(POPPLER, [poppler-glib gdk-2.0])