From b2c5c876e2659d9060d82e9b8494150d53854cc4 Mon Sep 17 00:00:00 2001
From: Geraint Edwards <gedge@users.noreply.github.com>
Date: Thu, 8 Mar 2018 19:05:16 +0000
Subject: [PATCH] force use of `os.LookupEnv` when go1.5 (due to cacheing in
 go1.10) (#108)

go1.10 caches env var accesses, but only when using `os.LookupEnv`
(`syscall.Getenv` does not record env var accesses so cache seems
reusable even if env vars have changed)

fixes #107
---
 env_os.go      | 2 +-
 env_syscall.go | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/env_os.go b/env_os.go
index a6a014a..eba07a6 100644
--- a/env_os.go
+++ b/env_os.go
@@ -1,4 +1,4 @@
-// +build appengine
+// +build appengine go1.5
 
 package envconfig
 
diff --git a/env_syscall.go b/env_syscall.go
index 9d98085..4254540 100644
--- a/env_syscall.go
+++ b/env_syscall.go
@@ -1,4 +1,4 @@
-// +build !appengine
+// +build !appengine,!go1.5
 
 package envconfig