Updated instructions to use a common header for each packager
diff --git a/docs/installation.rst b/docs/installation.rst
index 84d24ca..ac4c13c 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -94,31 +94,20 @@
------------------------------
To link cryptography against a custom version of OpenSSL you'll need to set
-``ARCHFLAGS``, ``LDFLAGS``, and ``CFLAGS``. OpenSSL can be installed via `Homebrew`_:
+``ARCHFLAGS``, ``LDFLAGS``, and ``CFLAGS``. OpenSSL can be installed via `Homebrew`_ or `MacPorts`_:
+
+`Homebrew`_
.. code-block:: console
$ brew install openssl
+ $ env ARCHFLAGS="-arch x86_64" LDFLAGS="-L/usr/local/opt/openssl/lib" CFLAGS="-I/usr/local/opt/openssl/include" pip install cryptography
or `MacPorts`_:
.. code-block:: console
$ sudo port install openssl
-
-
-Then install cryptography linking against the brewed version:
-
-on `Homebrew`_:
-
-.. code-block:: console
-
- $ env ARCHFLAGS="-arch x86_64" LDFLAGS="-L/usr/local/opt/openssl/lib" CFLAGS="-I/usr/local/opt/openssl/include" pip install cryptography
-
-on `MacPorts`_:
-
-.. code-block:: console
-
$ env ARCHFLAGS="-arch x86_64" LDFLAGS="-L/opt/local/lib" CFLAGS="-I/opt/local/include" pip install cryptography
.. _`Homebrew`: http://brew.sh