On 12/14/2015 08:56 AM, Eric Noulard wrote:


2015-12-14 15:42 GMT+01:00 Brad King <brad.k...@kitware.com
<mailto:brad.k...@kitware.com>>:

    On 12/11/2015 06:42 PM, Orion Poplawski wrote:
    > For Fedora EPEL we often end up packaging newer versions of cmake as 
cmakeXY
    > (e.g. cmake34) that can be installed in parallel with the system cmake.  
This
    > is a fairly invasive process.  I'm attaching the current patch I'm 
working on
    > for this.  Is there any interest in cmake itself for supporting this kind 
of
    > thing?

    Not particularly.  That does look pretty invasive.

    Why not just install it to /usr/lib/cmake34 with normal names and
    symlink
    the versioned names?  E.g.

      /usr/bin/cmake34 -> /usr/lib/cmake34/bin/cmake
      /usr/bin/ctest34 -> /usr/lib/cmake34/bin/ctest



+1
Personnally when I installed several version of CMake I do install them
with a particular prefix and then I use update-alternatives(1) to install
proper symlinks to the specific location.

I switch from one version to another using update-alternatives(1).

This can certainly be used on Fedora/EPEL as well:
https://fedoraproject.org/wiki/Packaging:Alternatives

Yes, but this cannot be done in rpm spec files for building other packages (as would be done in EPEL). Perhaps we could leverage environment-modules, but this would be a bit of a departure.


--
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA/CoRA Division                    FAX: 303-415-9702
3380 Mitchell Lane                  or...@cora.nwra.com
Boulder, CO 80301              http://www.cora.nwra.com
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