From c7d6e854544c663695d42510ce47ba450a1b70f8 Mon Sep 17 00:00:00 2001
From: Ralf Vogler <ralf.vogler@gmail.com>
Date: Tue, 18 Jun 2019 13:38:33 +0200
Subject: [PATCH] local switch needs an ocaml version, otherwise opam complains
 (only if there is no switch yet), see ocaml/opam#3874

---
 make.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/make.sh b/make.sh
index 33faad62d3..c5212dbd65 100755
--- a/make.sh
+++ b/make.sh
@@ -17,7 +17,7 @@ ocb() {
 opam_setup() {
   set -x
   opam init -y -a --bare
-  opam switch -y create ./ --deps-only
+  opam switch -y create ./ --deps-only 4.07.1
   # opam install camlp4 mongo # camlp4 needed for mongo
 }