From af3fc4005a1a5bb8b0185e652a0e0ba8693d098c Mon Sep 17 00:00:00 2001
From: Martin Tournoij <martin@arp242.net>
Date: Tue, 5 Oct 2021 21:08:26 +0800
Subject: [PATCH] Compile error when using Go 1.13 or older

Fixes #29
---
 go.mod |  2 +-
 old.go | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 old.go

diff --git a/go.mod b/go.mod
index b3a4c0f..f7b415c 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module arp242.net/uni/v2
 
-go 1.13
+go 1.14
 
 require (
 	zgo.at/zli v0.0.0-20210330134141-b5f2a73532d6
diff --git a/old.go b/old.go
new file mode 100644
index 0000000..308fdb9
--- /dev/null
+++ b/old.go
@@ -0,0 +1,11 @@
+//go:build !go1.14
+// +build !go1.14
+
+package main
+
+// Make sure people don't try to build with older versions of Go, as that will
+// introduce some runtime problems (e.g. using %w) and/or give confusing "no
+// such function" errors.
+func init() {
+	"You need Go 1.14 or newer to compile uni"
+}