Dear André,
On 16/05/2018 12:37, André Gemünd wrote:
Dear EasyBuilders,
another question that has cropped up for us is how to specify the minimum required CMake
version as builddependency. In our view its unnecessary to install CMake for specific
toolchains, and also to specify any fixed version. We just need to specify "CMake >
2.8.12", replicating the often used cmake_minimum_required macro in CMakeLists.txt. Of
course, it would even be nicer to do this from the CMakeMake easyblock and automatically
find the required version in the CMakeLists.txt, but the first idea would be enough for now
I think. Is it possible?
Right now you can only specify strict versions of (build) dependencies
in easyconfig files.
The idea to loosen this a bit to also support version ranges has existed
for a while (see
https://github.com/easybuilders/easybuild-framework/issues/746), but i)
nobody has stepped up yet to actually go and implement it, ii) it's also
a bit of a can of worms (and open-ended "CMake > 2.8.12" is probably a
bad idea in the long run, taking into account CMake 3.x, 4.x, etc.;
sooner or later the easyconfig is going to start failing...).
That said, we should definitely support it especially for tools like
CMake. But someone will need to find the time to come up with a spec and
implement it...
regards,
Kenneth
Best Greetings
