From ecc7bdd8435ec3965ac7095efdead3bb49f378ed Mon Sep 17 00:00:00 2001
From: Zhiming Wang <zmwangx@gmail.com>
Date: Sat, 20 Aug 2016 22:18:51 +0800
Subject: [PATCH] emacs: disable --with-file-notification=gfile unless stable
 (#4067)

--with-file-notification=gfile support on OS X has been removed in Emacs
25 (supplanted by kqueue(2) support), and even leads to a configure
error since
https://github.com/emacs-mirror/emacs/commit/21ad7279e47f0bc33acf36f0ac27f92808232dbd.

Fixes #4048.
---
 Formula/emacs.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Formula/emacs.rb b/Formula/emacs.rb
index 81e812e2ec..3914e0e6a7 100644
--- a/Formula/emacs.rb
+++ b/Formula/emacs.rb
@@ -42,6 +42,8 @@ class Emacs < Formula
   depends_on "librsvg" => :recommended
   depends_on "imagemagick" => :optional
   depends_on "mailutils" => :optional
+  # Remove this option and the --with-file-notification=gfile line below once
+  # Emacs 25 is stable (#4048)
   depends_on "glib" => :optional
 
   def install
@@ -54,7 +56,7 @@ class Emacs < Formula
       --without-x
     ]
 
-    args << "--with-file-notification=gfile" if build.with? "glib"
+    args << "--with-file-notification=gfile" if build.stable? && build.with?("glib")
 
     if build.with? "libxml2"
       args << "--with-xml2"