From 4727803e94035ce0115d9fedbd703ed62e54e998 Mon Sep 17 00:00:00 2001
From: Misty De Meo <mistydemeo@gmail.com>
Date: Wed, 26 Mar 2014 10:00:30 -0700
Subject: [PATCH] appledoc: don't try to build without GC

---
 Formula/appledoc.rb | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Formula/appledoc.rb b/Formula/appledoc.rb
index ffd99c7b6f5..f8a2faae66f 100644
--- a/Formula/appledoc.rb
+++ b/Formula/appledoc.rb
@@ -11,6 +11,14 @@ class Appledoc < Formula
   depends_on :xcode
   depends_on :macos => :lion
 
+  # Actually works with pre-503 clang, but we don't have a way to
+  # express this yet.
+  # clang 5.1 (build 503) removed support for Objective C GC, and
+  # there is no stable version of Appledoc with support for ARC yet.
+  # It's actually possible to build with GC disabled, but not advisable.
+  # See: https://github.com/tomaz/appledoc/issues/439
+  fails_with :clang
+
   def install
     xcodebuild "-project", "appledoc.xcodeproj",
                "-target", "appledoc",
@@ -19,9 +27,6 @@ class Appledoc < Formula
                "SYMROOT=build",
                "DSTROOT=build",
                "INSTALL_PATH=/bin",
-               # 2.2-963 no longer actually uses ObjC GC, but will still
-               # try to build with it due to this flag and hence will fail.
-               "GCC_ENABLE_OBJC_GC=unsupported",
                "OTHER_CFLAGS='-DCOMPILE_TIME_DEFAULT_TEMPLATE_PATH=@\"#{prefix}/Templates\"'"
     bin.install "build/bin/appledoc"
     prefix.install "Templates/"