--- configure.orig	2016-11-18 13:04:45 UTC
+++ configure
@@ -516,7 +516,8 @@ fi
 
 # bytes?
 
-if [ -f "${ocaml_core_stdlib}/bytes.cmi" ]; then
+if [ -f "${ocaml_core_stdlib}/bytes.cmi" -o \
+     -f "${ocaml_core_stdlib}/stdlib__bytes.cmi" ]; then
     echo "bytes: found, installing fake library"
     lbytes="bytes"
     cbytes=0