From c58bbdc2138d2eb21ab7ea499beb6994a01891c4 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Mon, 5 Sep 2016 22:13:55 +0100
Subject: [PATCH] Formula#specified_path

---
 Library/Homebrew/formula.rb           | 5 +++++
 Library/Homebrew/formula_installer.rb | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 90e6b22122..cc26a492e2 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -226,6 +226,11 @@ class Formula
 
   public
 
+  # The path that was specified to find/install this formula.
+  def specified_path
+    alias_path || path
+  end
+
   # Is the currently active {SoftwareSpec} a {#stable} build?
   # @private
   def stable?
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index ebcc3d4dab..19c7838b35 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -589,7 +589,7 @@ class FormulaInstaller
       -I #{HOMEBREW_LOAD_PATH}
       --
       #{HOMEBREW_LIBRARY_PATH}/build.rb
-      #{formula.alias_path || formula.path}
+      #{formula.specified_path}
     ].concat(build_argv)
 
     Sandbox.print_sandbox_message if Sandbox.formula?(formula)