I'm looking at packaging up cmake 3.4 for EPEL7 as cmake34 much like we did with cmake 2.8 in EPEL6 as cmake28. Generally what we've done in the past is still install into the normal paths and rename binaries & directories asneeded. With cmake this is quite tricky and requires an invasive patch.

It would be much easier to install into a different prefix and then symlink to /usr/bin/cmake34 - although I still have some doubts as to whether this would work or not - cmake seems to want to still spawn "cmake" which would use the system version (or not be found). One might also be able to use environment-modules, though this would require more modification to spec files.

See https://bugzilla.redhat.com/show_bug.cgi?id=1290199 for some more details.

Thoughts?