ldc: revision for llvm

Formula/ldc.rb

@@ -1,6 +1,7 @@
 class Ldc < Formula
   desc "Portable D programming language compiler"
   homepage "https://wiki.dlang.org/LDC"
+  revision 1
 
   stable do
     url "https://github.com/ldc-developers/ldc/releases/download/v1.1.1/ldc-1.1.1-src.tar.gz"
@@ -10,6 +11,14 @@ class Ldc < Formula
       url "https://github.com/ldc-developers/ldc/releases/download/v0.17.3/ldc-0.17.3-src.tar.gz"
       sha256 "325bd540f7eb71c309fa0ee9ef6d196a75ee2c3ccf323076053e6b7b295c2dad"
     end
+
+    # Remove for > 1.1.1
+    # Upstream commit from 26 Feb 2017 "Fix build for LLVM 4.0"
+    # See https://github.com/ldc-developers/ldc/pull/2017
+    resource "ldc-lts-patch" do
+      url "https://github.com/ldc-developers/ldc/commit/4847d8a.patch"
+      sha256 "7d93765898ce5501eb9660d76e9837682eb0dd38708fa640b6b443b02577a172"
+    end
   end
 
   bottle do
@@ -35,6 +44,15 @@ class Ldc < Formula
   def install
     ENV.cxx11
     (buildpath/"ldc-lts").install resource("ldc-lts")
+
+    # Remove for > 1.1.1
+    if build.stable?
+      resource("ldc-lts-patch").stage do
+        system "patch", "-p1", "-i", Pathname.pwd/"4847d8a.patch", "-d",
+                        buildpath/"ldc-lts"
+      end
+    end
+
     cd "ldc-lts" do
       mkdir "build" do
         args = std_cmake_args + %W[