From 1455d83dd8bb7b2a7fbd946eb4dd757c060b06a6 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Mon, 11 Aug 2014 20:15:25 +0100
Subject: [PATCH] formula_installer: check for recommended/optional.

build.without? seemingly always returns true for requirements that are
neither recommended nor optional so check these before deciding not to
install a default formula.

Closes Homebrew/homebrew#31511.
---
 Library/Homebrew/formula_installer.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 2b064107b2..63b7fa0dfb 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -241,7 +241,7 @@ class FormulaInstaller
 
   def install_requirement_default_formula?(req, build)
     return false unless req.default_formula?
-    return false if build.without?(req)
+    return false if build.without?(req) && (req.recommended? || req.optional?)
     return true unless req.satisfied?
     pour_bottle? || build_bottle?
   end