librsvg 2.40.9

version bump
brew audit --strict compliance

Closes Homebrew/homebrew#39583.

Signed-off-by: Xu Cheng <xucheng@me.com>

Formula/librsvg.rb

@@ -1,7 +1,7 @@
 class Librsvg < Formula
   homepage "https://live.gnome.org/LibRsvg"
-  url "https://download.gnome.org/sources/librsvg/2.40/librsvg-2.40.5.tar.xz"
-  sha256 "d14d7b3e25023ce34302022fd7c9b3a468629c94dff6c177874629686bfc71a7"
+  url "https://download.gnome.org/sources/librsvg/2.40/librsvg-2.40.9.tar.xz"
+  sha256 "13964c5d35357552b47d365c34215eee0a63bf0e6059b689f048648c6bf5f43a"
 
   bottle do
     sha256 "f7ca7f815635467444ffeb8b2ec27411ed565ecbd7e6761bee033b2b26b531d8" => :yosemite
@@ -42,4 +42,52 @@ class Librsvg < Formula
     ENV["GDK_PIXBUF_MODULEDIR"] = "#{HOMEBREW_PREFIX}/lib/gdk-pixbuf-2.0/2.10.0/loaders"
     system "#{Formula["gdk-pixbuf"].opt_bin}/gdk-pixbuf-query-loaders", "--update-cache"
   end
+
+  test do
+    (testpath/"test.c").write <<-EOS.undent
+      #include <librsvg/rsvg.h>
+
+      int main(int argc, char *argv[]) {
+        RsvgHandle *handle = rsvg_handle_new();
+        return 0;
+      }
+    EOS
+    cairo = Formula["cairo"]
+    fontconfig = Formula["fontconfig"]
+    freetype = Formula["freetype"]
+    gdk_pixbuf = Formula["gdk-pixbuf"]
+    gettext = Formula["gettext"]
+    glib = Formula["glib"]
+    libpng = Formula["libpng"]
+    pixman = Formula["pixman"]
+    flags = (ENV.cflags || "").split + (ENV.cppflags || "").split + (ENV.ldflags || "").split
+    flags += %W[
+      -I#{cairo.opt_include}/cairo
+      -I#{fontconfig.opt_include}
+      -I#{freetype.opt_include}/freetype2
+      -I#{gdk_pixbuf.opt_include}/gdk-pixbuf-2.0
+      -I#{gettext.opt_include}
+      -I#{glib.opt_include}/glib-2.0
+      -I#{glib.opt_lib}/glib-2.0/include
+      -I#{include}/librsvg-2.0
+      -I#{libpng.opt_include}/libpng16
+      -I#{pixman.opt_include}/pixman-1
+      -D_REENTRANT
+      -L#{cairo.opt_lib}
+      -L#{gdk_pixbuf.opt_lib}
+      -L#{gettext.opt_lib}
+      -L#{glib.opt_lib}
+      -L#{lib}
+      -lcairo
+      -lgdk_pixbuf-2.0
+      -lgio-2.0
+      -lglib-2.0
+      -lgobject-2.0
+      -lintl
+      -lm
+      -lrsvg-2
+    ]
+    system ENV.cc, "test.c", "-o", "test", *flags
+    system "./test"
+  end
 end