neko 2.0.0-6ab8f48

Closes Homebrew/homebrew#20329.

Signed-off-by: Samuel John <github@SamuelJohn.de>

Formula/neko.rb

@@ -0,0 +1,49 @@
+require 'formula'
+
+class Neko < Formula
+  homepage 'http://nekovm.org'
+  url 'https://github.com/HaxeFoundation/neko.git', :revision => '6ab8f48a8dc62e4d917b599b3d8c8e10f764f839'
+  version '2.0.0-6ab8f48'
+
+  head 'https://github.com/HaxeFoundation/neko.git'
+
+  depends_on 'bdw-gc'
+  depends_on 'pcre'
+
+  def install
+    # Build requires targets to be built in specific order
+    ENV.deparallelize
+    system "make", "os=osx", "LIB_PREFIX=#{HOMEBREW_PREFIX}", "INSTALL_FLAGS="
+
+    lib.install 'bin/libneko.dylib'
+    include.install Dir['vm/neko*.h']
+    neko = lib/'neko'
+    neko.install Dir['bin/*']
+
+    # Symlink into bin so libneko.dylib resolves correctly for custom prefix
+    bin.mkpath
+    for file in ['neko', 'nekoc', 'nekoml', 'nekotools'] do
+      (bin/file).make_relative_symlink(neko/file)
+    end
+  end
+
+  def custom_prefix?
+    HOMEBREW_PREFIX.to_s != '/usr/local'
+  end
+
+  test do
+    ENV["NEKOPATH"] = "#{HOMEBREW_PREFIX}/lib/neko" if custom_prefix?
+    system "#{bin}/neko", "#{HOMEBREW_PREFIX}/lib/neko/test.n"
+  end
+
+  def caveats
+    s = ''
+    if custom_prefix?
+      s << <<-EOS.undent
+        You must add the following line to your .bashrc or equivalent:
+          export NEKOPATH="#{HOMEBREW_PREFIX}/lib/neko"
+        EOS
+    end
+    s
+  end
+end