From 7442ff1144c91ba9810b66fa843baf8c1953107f Mon Sep 17 00:00:00 2001
From: Joseph Richey <joerichey@google.com>
Date: Wed, 14 Feb 2018 11:20:44 -0800
Subject: [PATCH] Makefile: arch command is not portable

According to:
https://www.gnu.org/software/coreutils/manual/html_node/arch-invocation.html
the arch command isn't portable, so we switch to uname.
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index aa82008e..ee571559 100644
--- a/Makefile
+++ b/Makefile
@@ -181,7 +181,7 @@ $(BIN)/gocovmerge: $(VENDOR)
 
 # Non-go tools downloaded from appropriate repository
 PROTOC_VERSION := 3.5.1
-ARCH := $(shell arch)
+ARCH := $(shell uname -m)
 ifeq (x86_64,$(ARCH))
 PROTOC_ARCH := x86_64
 else ifneq ($(filter i386 i686,$(ARCH)),)