Merge pull request #717 from gracenoah/gopherjs

add gopherjs build tag
diff --git a/terminal_bsd.go b/terminal_bsd.go
index d7b3893..4880d13 100644
--- a/terminal_bsd.go
+++ b/terminal_bsd.go
@@ -1,5 +1,5 @@
 // +build darwin freebsd openbsd netbsd dragonfly
-// +build !appengine
+// +build !appengine,!gopherjs
 
 package logrus
 
diff --git a/terminal_check_appengine.go b/terminal_check_appengine.go
index 2403de9..3de08e8 100644
--- a/terminal_check_appengine.go
+++ b/terminal_check_appengine.go
@@ -1,4 +1,4 @@
-// +build appengine
+// +build appengine gopherjs
 
 package logrus
 
diff --git a/terminal_check_notappengine.go b/terminal_check_notappengine.go
index 116bcb4..067047a 100644
--- a/terminal_check_notappengine.go
+++ b/terminal_check_notappengine.go
@@ -1,4 +1,4 @@
-// +build !appengine
+// +build !appengine,!gopherjs
 
 package logrus
 
diff --git a/terminal_linux.go b/terminal_linux.go
index 88d7298..f29a009 100644
--- a/terminal_linux.go
+++ b/terminal_linux.go
@@ -3,7 +3,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !appengine
+// +build !appengine,!gopherjs
 
 package logrus