Add HB_NO_OEPN (#1767)
diff --git a/src/hb-blob.cc b/src/hb-blob.cc
index 5783fb2..0c562b7 100644
--- a/src/hb-blob.cc
+++ b/src/hb-blob.cc
@@ -543,6 +543,9 @@
hb_blob_t *
hb_blob_create_from_file (const char *file_name)
{
+#ifdef HB_NO_OEPN
+ return hb_blob_get_empty ();
+#endif
/* Adopted from glib's gmappedfile.c with Matthias Clasen and
Allison Lortie permission but changed a lot to suit our need. */
#if defined(HAVE_MMAP) && !defined(HB_NO_MMAP)
diff --git a/src/hb-config.hh b/src/hb-config.hh
index bcce159..19ceed8 100644
--- a/src/hb-config.hh
+++ b/src/hb-config.hh
@@ -60,7 +60,9 @@
#define HB_NO_GETENV
#define HB_NO_LAYOUT_UNUSED
#define HB_NO_MATH
+#define HB_NO_MMAP
#define HB_NO_NAME
+#define HB_NO_OEPN
#define HB_NO_SETLOCALE
#define HB_NO_SUBSET_LAYOUT
#endif
