[Python] How can I compile Python 3.6.2 on macOS with openSSL from homebrew?

I'm trying to compile Python 3.6.2 on macOS 10.11 according to the instructions on https://bugs.python.org/issue29095.

I've used homebrew to install openSSL to the standard location and then added LDFLAGS, CFLAGS, and CPPFLAGS to my env:

$ printenv | grep FLAGS
LDFLAGS=/usr/local/Cellar/openssl/1.0.2l/lib/
CFLAGS=-I/usr/local/Cellar/openssl/1.0.2l/include/openssl
CPPFLAGS=-I/usr/local/Cellar/openssl/1.0.2l/include/openssl


Then in that same shell, I compile Python to the custom location required for my use case:

$ sudo ./configure --prefix=/oebuild/python/python-3.6.1
$ sudo make
$ sudo make install


However, the SSL module doesn't get built. The build log says this:

Python build finished successfully! The necessary bits to build these optional modules were not found: _gdbm _ssl ossaudiodev
spwd
To find the necessary bits, look in setup.py in detect_modules() for the module's name.
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