libproxy 0.4.12 (new formula)

Closes Homebrew/legacy-homebrew#47621.

Signed-off-by: Alex Dunn <dunn.alex@gmail.com>

Formula/libproxy.rb

@@ -0,0 +1,30 @@
+class Libproxy < Formula
+  desc "Library that provides automatic proxy configuration management"
+  homepage "https://libproxy.github.io/libproxy/"
+
+  head "https://github.com/libproxy/libproxy.git"
+
+  stable do
+    url "https://github.com/libproxy/libproxy/archive/0.4.12.tar.gz"
+    sha256 "add9c5e30767c17b00f842f6280d818ece1eb23ab92e1fc68661204c95d7e22b"
+    # Fix compilation errors with CLang on MacOSX
+    patch do
+      url "https://github.com/libproxy/libproxy/commit/48a441652edfd73654f0c21e51cc96c69d5070c3.diff"
+      sha256 "ac714f2cc010a5428556b4b66a42f4df043a6f42540269bba7da11a773f7529c"
+    end
+  end
+
+  depends_on "cmake" => :build
+
+  def install
+    mkdir "build" do
+      # The build tries to install to non-standard locations for Python bindings, hence avoid it..
+      system "cmake", "..", "-DWITH_PYTHON=no", *std_cmake_args
+      system "make", "install"
+    end
+  end
+
+  test do
+    system "#{bin}/proxy", "127.0.0.1"
+  end
+end