Merge pull request #589 from diffblue/homebrew-formula

add a Homebrew formula

Author: kroening

Formula/ebmc.rb@5.0

@@ -0,0 +1,23 @@
+class Ebmc < Formula
+  desc "Model Checker for SystemVerilog"
+  homepage "https://www.cprover.org/ebmc/"
+  url "https://github.com/diffblue/hw-cbmc.git",
+    revision: "f2f3a40951f9e505a90621b430035b811dfc2b1a"
+  version "5.0"
+  license "BSD-3-Clause"
+
+  uses_from_macos "flex" => :build
+  uses_from_macos "curl" => :build
+  depends_on "bison" => :build
+
+  def install
+    system "make", "-C", "lib/cbmc/src", "minisat2-download"
+    system "make", "-C", "src"
+    system "mkdir", "-p", "#{prefix}/usr/bin"
+    system "cp", "src/ebmc/ebmc", "#{prefix}/usr/bin/"
+  end
+
+  test do
+    system "make", "-C", "regression/ebmc", "test"
+  end
+end