libweston: Introduce libweston-internal.h
Introduce a new private header file that only internal parts of the
library are allowed to use and shouldn't be exposed in the public header
of libweston.
Start by adding by adding functions that operate on the 'weston_buffer*'.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
diff --git a/libweston/compositor.c b/libweston/compositor.c
index 848ae4e..444b406 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -72,6 +72,7 @@
#include <libweston/version.h>
#include <libweston/plugin-registry.h>
#include "pixel-formats.h"
+#include "libweston-internal.h"
/**
* \defgroup head Head