Try and provide separate PyPi instructions for mod_wsgi-standalone package.

Author: GrahamDumpleton

README-standalone.rst

@@ -0,0 +1,30 @@
+Overview
+--------
+
+The mod_wsgi package provides an Apache module that implements a WSGI
+compliant interface for hosting Python based web applications on top of the
+Apache web server.
+
+The primary package for mod_wsgi is available on the Python package index
+(PyPi) as ``mod_wsgi``. That package assumes that you have a suitable
+version of Apache pre-installed on your target system, and if you don't,
+installation of the package will fail.
+
+If you are on a UNIX like system (Linux, macOS) and need a version of
+Apache to be installed for you, you can use the ``mod_wsgi-standalone``
+package on PyPi instead. When installing the ``mod_wsgi-standalone``
+package it will first trigger the installation of the ``mod_wsgi-httpd``
+package, which will result in a version of Apache being installed as
+part of your Python installation. Next the ``mod_wsgi`` package will be
+installed, with it using the version of Apache installed by the
+``mod_wsgi-httpd`` package rather than any system package for Apache.
+
+Note that this method of installation is only suitable for where you want
+to use ``mod_wsgi-expres``. It cannot be used to build mod_wsgi for use
+with your system Apache installation. This installation method will also
+not work on Windows.
+
+When installing mod_wsgi using this method, except that you will install
+the ``mod_wsgi-standalone`` package instead of the ``mod_wsgi`` package,
+you should follow installation and usage instructions outlined on the
+PyPi page for the ``mod_wsgi`` package.

setup.py

@@ -544,11 +544,16 @@ def _version():
 
 # Now finally run distutils.
 
+package_name = 'mod_wsgi'
 long_description = open('README.rst').read()
 
 standalone = os.path.exists('pyproject.toml')
 
-setup(name = standalone and 'mod_wsgi-standalone' or 'mod_wsgi',
+if standalone:
+    package_name = 'mod_wsgi-standalone'
+    long_description = open('README-standalone.rst').read()
+
+setup(name = package_name,
     version = _version(),
     description = 'Installer for Apache/mod_wsgi.',
     long_description = long_description,