From eab9474c28238a0cdd0ce90a444633c6694b2eb4 Mon Sep 17 00:00:00 2001
From: Riccardo Rizzo <r.rizzo@arduino.cc>
Date: Wed, 14 Mar 2018 17:00:20 +0100
Subject: [PATCH] sort objectFiles slice alphabetically

this makes the compilation deterministic. fixes https://github.com/arduino/Arduino/issues/7278
---
 builder_utils/utils.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/builder_utils/utils.go b/builder_utils/utils.go
index 870a6b94..ec76ad3a 100644
--- a/builder_utils/utils.go
+++ b/builder_utils/utils.go
@@ -34,6 +34,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"sort"
 	"strconv"
 	"strings"
 	"sync"
@@ -200,6 +201,7 @@ func compileFilesWithRecipe(ctx *types.Context, objectFiles []string, sourcePath
 			for objectFile := range objectFilesChan {
 				objectFiles = append(objectFiles, objectFile)
 			}
+			sort.Strings(objectFiles)
 			return objectFiles, nil
 		}
 	}