New formula libgsf

Libgsf is a simple i/o library that can read and write common file types
and handle structured formats that provide file-system-in-a-file semantics.

Formula/libgsf.rb

@@ -0,0 +1,20 @@
+require 'formula'
+
+class Libgsf <Formula
+  url 'http://ftp.acc.umu.se/pub/GNOME/sources/libgsf/1.14/libgsf-1.14.16.tar.bz2'
+  homepage 'http://directory.fsf.org/project/libgsf/'
+  md5 '8478d83fda0b6e57f36550c11a693ee1'
+
+  depends_on 'gettext'
+
+  def install
+    configure_args = [
+      "--prefix=#{prefix}",
+      "--disable-debug",
+      "--disable-dependency-tracking",
+      ]
+
+    system "./configure", *configure_args
+    system "make install"
+  end
+end