Make it an error to include non-top-level headers
Users should #include <hb.h> (or hb-ft.h, hb-glib.h, etc), but
never things like hb-shape.h directly. This makes it easier to
refactor headers later on without breaking compatibility.
diff --git a/src/hb-uniscribe.h b/src/hb-uniscribe.h
index dbcacd7..7bf8090 100644
--- a/src/hb-uniscribe.h
+++ b/src/hb-uniscribe.h
@@ -27,8 +27,7 @@
#ifndef HB_UNISCRIBE_H
#define HB_UNISCRIBE_H
-#include "hb-common.h"
-#include "hb-shape.h"
+#include "hb.h"
#define _WIN32_WINNT 0x0500
#include <windows.h>
