Yes, I was referring to the online docs.

On 06/04/18 05:19, Greg Landrum wrote:
Tim: where did you see the mention of cmake 2.6?
The docs that are part of the source tree have already been updated to mention that cmake 3.1 or newer is required:
maybe you're looking at the online docs? I don't update those for the beta releases, so those still correspond to the previous version.

I'd like to be sure I didn't miss anything else.


On Thu, Apr 5, 2018 at 5:52 PM, Greg Landrum < <>> wrote:

    Yeah, thats another change that has been made. I will update the docs.

    Thanks for pointing out the oversight


    On Thu, 5 Apr 2018 at 17:30, Tim Dudgeon <
    <>> wrote:


        Does this explain problems I'm seeing with building on Centos:

        From the current docs:
        cmake. You need version 2.6 (or more recent)

        With a current centos7 distro after a `yum install cmake`

        # cmake --version
        cmake version

        When you build from current master branch you get this error:

        CMake Error at CMakeLists.txt:1 (cmake_minimum_required):
          CMake 3.1 or higher is required.  You are running version

        This is not seen when you build from the Release_2017_09_2 branch.


        On 04/04/18 04:23, Greg Landrum wrote:

        NOTE: If you don't work with the RDKit at the C++ level or
        build the code yourself from source, you probably don't need
        to read this email.

        TL;DR: When we do the beta for the 2018.03.1 release we're
        going to switch the C++ backend to use modern C++ (=C++11).
        For people who can't switch to use that code, we will
        continue to provide bug fixes for the 2017.09 release for at
        least another 6 months.

        # What's happening?

        As part of the upcoming 2018.03 release, we will start using
        modern C++ for the RDKit - this means C++11 at the moment,
        the goal is that you should be able to build the code with
        g++ v4.8. I've been talking about this for a while, blogged
        about it
        and posted to the rdkit-devel list
        now it's finally happening.

        Concretely what this means in github is that the current
        master branch will be renamed to legacy and the modern_cxx
        branch will be renamed to master.

        # Who does this affect?

        This should only affect people who need to build the RDKit
        C++ code themselves. If you use a binary version of the RDKit
        like the ones available inside of Anaconda Python or KNIME,
        this change should have no impact upon you.

        # What about people who can't use up-to-date compilers?

        We realize that some people on older operating systems will
        not be able to switch to start using a compiler that supports
        C++11. In order to continue to support this subset of
        developers, we will continue to apply bug fixes to the
        current Release_2017_09 branch and do occasional patch
        releases. Since this is intended for people who need to build
        the code themselves anyway, we won't do builds of these
        releases any more.

        We will keep doing these patch release at least until the
        2018.09 release. Whether or not we continue past that date
        will depend on demand, so if you are using these releases
        please let us know.

        # Why are you doing this?

        There's a long, rambling answer to this, but I'm not going to
        give it here. :-)
        The simplest explanation is that we think that the core of
        the RDKit should be using a modern and (reasonably)
        up-to-date version of the language that it's written in. The
        developer experience is better and, happily, the code ends up
        being faster.

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