Build instructions for Ubuntu 14.04 are out of date

[CruzR]

The build instructions for Ubuntu 14.04 don't work as is. Issues I've run into so far:

• PyTorch's setup.py now checks for the typing module, so it needs to be added to the list of PyPI packages to install
• The cmake package ships CMake 2.8.12, but PyTorch seems to require CMake >= 3.5 to build, so the required package is cmake3

Does caffe2 still officially support Ubuntu 14.04? If not, docs should be changed to indicate that.

[orionr]

Hi @CruzR - thank you for the feedback. I think this was caused by our merge of PyTorch and Caffe2. You can still do a straight mkdir build; cd build; cmake3 ..; make install installation with cmake3, but the PR I just put up should fix this for python setup.py install.

[CruzR]

Thanks for the quick reply! To clarify, Ubuntu 14.04 actually installs CMake 3.5.1 as /usr/bin/cmake, you just need to install the cmake3 package instead of the cmake package. I was more thinking of a simple documentation update, e.g.:

--- a/_docs/getting-started/ubuntu.md 2018-10-17 20:45:55.315365050 +0200
+++ b/_docs/getting-started/ubuntu.md 2018-10-17 20:47:24.015391864 +0200
@@ -52,7 +52,7 @@
 sudo apt-get update
 sudo apt-get install -y --no-install-recommends \
       build-essential \
-      cmake \
+      cmake3 \
       git \
       libgoogle-glog-dev \
       libgtest-dev \
@@ -71,7 +71,8 @@
 pip install --user \
       future \
       numpy \
-      protobuf
+      protobuf \
+      typing

I still didn't manage to make setup.py work for me, but that might be because my use case is somewhat exotic (I'm trying to install to a different directory with setup.py install --prefix=/some/path because I don't have write permissions for /usr or /usr/local). But the direct build using CMake works for me, thanks for the tip!

[orionr]

In that case you're probably in better shape than I thought. :) We definitely need to support cmake3 as the command, though, through setup.py so I'll still land the PR. An update on the docs would be great. Do you want to put up a PR? If not, I'll make the change.

Also, if you want to install locally I'd highly recommend conda and creating a conda environment that you can install in. Then you should be able to use python setup.py install.

[CruzR]

Sure, I can open a pull request, I just need some time to clone this repo first, my VPN is kind of slow at the moment.