Build on OCaml 4.09 (#41)

Author: anmonteiro

.circleci/config.yml

@@ -20,6 +20,7 @@ opam-steps: &opam-steps
     - run:
         name: "Initialize opam"
         command: |
+          sudo apt-get update
           sudo apt-get install -y m4
           opam init --auto-setup --dot-profile=~/.bash_profile
           opam remote add ocamlorg https://opam.ocaml.org || true
@@ -37,7 +38,7 @@ opam-steps: &opam-steps
     - run:
         name: 'opam pin'
         command: |
-          opam install reason
+          opam pin add reason --dev-repo
           opam install alcotest
           opam install -t --deps-only .
     - save_cache:
@@ -105,6 +106,13 @@ jobs:
       - TERM: dumb
       - OCAML_VERSION: "4.08.1"
     <<: *opam-steps
+  4.09.0:
+    docker:
+      - image: ocaml/opam2:debian-9-ocaml-4.09
+    environment:
+      - TERM: dumb
+      - OCAML_VERSION: "4.09.0"
+    <<: *opam-steps
   esy:
     docker:
       - image: circleci/node:7.10
@@ -168,4 +176,5 @@ workflows:
       - 4.06.1
       - 4.07.1
       - 4.08.1
+      - 4.09.0
       - esy

esy.json

@@ -6,7 +6,7 @@
   "license": "MIT",
   "repository": "git+https://github.com/anmonteiro/aws-lambda-ocaml-runtime",
   "dependencies": {
-    "ocaml": "~4.8.1000",
+    "ocaml": "~4.9.0",
     "@opam/dune": "*",
     "@opam/yojson": ">= 1.6.0 < 2.0.0",
     "@opam/ppx_deriving_yojson": "*",
@@ -27,6 +27,15 @@
     "@opam/conf-libev": "esy-packages/libev:package.json#0b5eb66",
     "@opam/httpaf": "anmonteiro/httpaf:httpaf.opam#7c5d991",
     "@opam/httpaf-lwt": "anmonteiro/httpaf:httpaf-lwt.opam#7c5d991",
-    "@opam/httpaf-lwt-unix": "anmonteiro/httpaf:httpaf-lwt-unix.opam#7c5d991"
+    "@opam/httpaf-lwt-unix": "anmonteiro/httpaf:httpaf-lwt-unix.opam#7c5d991",
+    "@opam/reason": "anmonteiro/reason:reason.opam#a73e6d9",
+    "@opam/merlin": {
+      "source": "ocaml/merlin:merlin.opam#cfc28bd",
+      "override": {
+        "dependencies": {
+          "ocaml": "~4.9.0"
+        }
+      }
+    }
   }
 }