From 62be54a8c029a85bf06742a19bcdb5e86151559d Mon Sep 17 00:00:00 2001
From: Rob Pike <r@golang.org>
Date: Tue, 26 Aug 2014 14:43:03 -0700
Subject: [PATCH] unicode: use go generate instead of make to create tables.go

LGTM=mpvl, rsc
R=mpvl, rsc
CC=golang-codereviews
https://golang.org/cl/135820043
---
 src/pkg/unicode/Makefile  | 15 ---------------
 src/pkg/unicode/letter.go |  3 +++
 2 files changed, 3 insertions(+), 15 deletions(-)
 delete mode 100644 src/pkg/unicode/Makefile

diff --git a/src/pkg/unicode/Makefile b/src/pkg/unicode/Makefile
deleted file mode 100644
index aba12a07102..00000000000
--- a/src/pkg/unicode/Makefile
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 2009 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
-
-maketables: maketables.go
-	go build maketables.go
-
-tables:	maketables
-	./maketables --tables=all -output tables.go
-
-# Downloads from www.unicode.org, so not part
-# of standard test scripts.
-testtables: maketables
-	@echo '***' Be sure to make tables and go install first
-	./maketables -test
diff --git a/src/pkg/unicode/letter.go b/src/pkg/unicode/letter.go
index 977bd2b3b05..7fe4241eddf 100644
--- a/src/pkg/unicode/letter.go
+++ b/src/pkg/unicode/letter.go
@@ -6,6 +6,9 @@
 // Unicode code points.
 package unicode
 
+// Tables are regenerated each time we update the Unicode version.
+//go:generate go run maketables.go -tables=all -output tables.go
+
 const (
 	MaxRune         = '\U0010FFFF' // Maximum valid Unicode code point.
 	ReplacementChar = '\uFFFD'     // Represents invalid code points.