README: mention build-essential

I keep forgetting that nothing automatically depends upon it.
This commit is contained in:
Brian Warner 2016-06-03 18:27:20 -07:00
parent 3f05cd3007
commit b6ff5f3946

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@ -23,9 +23,10 @@ and do not need to be memorized.
```$ pip install magic-wormhole```
On Debian/Ubuntu systems, you may first need `apt-get python-dev
libffi-dev`. On Fedora it's `libffi-devel` and `python-devel`. On OS-X,
you may need to install `pip` and run `xcode-select --install` to get
GCC. Note: on Windows, only python2 is currently supported.
libffi-dev build-essential`. On Fedora it's `libffi-devel` and
`python-devel`. On OS-X, you may need to install `pip` and run
`xcode-select --install` to get GCC. Note: on Windows, only python2 is
currently supported.
Developers can clone the source tree and run `tox` to run the unit tests on
all supported (and installed) versions of python: 2.7, 3.3, 3.4, and 3.5.