From b8d8049f70277efe9a8cbc496df11d48f62b86a7 Mon Sep 17 00:00:00 2001
From: Maxim Belkin <maxim.belkin@gmail.com>
Date: Thu, 28 Sep 2017 14:16:21 -0500
Subject: [PATCH] install.rb: stop early if there are no formulae to be
 installed

---
 Library/Homebrew/cmd/install.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index c000877058..732e96b004 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -219,6 +219,7 @@ module Homebrew
         end
       end
 
+      return if formulae.empty?
       perform_preinstall_checks
 
       formulae.each do |f|