From f30c264519afd98b5aac8dd5c48810c761983124 Mon Sep 17 00:00:00 2001
From: "Tim D. Smith" <git@tim-smith.us>
Date: Tue, 15 Mar 2016 23:40:59 -0700
Subject: [PATCH] Avoid pathological trailing slash

Resolves an issue where xcode-select output with a terminal slash leads
to superenv failing to strip system library paths from ccld-style
invocations.

Fixes Homebrew/homebrew#49731. Discussion in Homebrew/homebrew#50154.
---
 Library/Homebrew/os/mac/xcode.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/os/mac/xcode.rb b/Library/Homebrew/os/mac/xcode.rb
index 4980fde3d5..b8643aa6d5 100644
--- a/Library/Homebrew/os/mac/xcode.rb
+++ b/Library/Homebrew/os/mac/xcode.rb
@@ -43,7 +43,8 @@ module OS
               path = bundle_path
               path.join("Contents", "Developer") if path
             else
-              Pathname.new(dir)
+              # Use cleanpath to avoid pathological trailing slash
+              Pathname.new(dir).cleanpath
             end
           end
       end