use det_cmake_version function to determine CMake version in CMakeMake generic easyblock

[boegel]

Follow-up for #2514 by @Flamefire, which takes into account that:

• CMake may not be loaded as a (build) dependency, which results in a hard crash without these changes because None is fed to LooseVersion (cfr. reduce the number of command line options for 'cmake' command in CMakeMake generic easyblock #2514 (comment))
• CMake may be filtered out as a dependency, because cmake in OS is preferred instead

det_cmake_version produces a clean error message if the CMake version could not be determined (for example if the cmake command is not found)

[casparvl]

Test report by @casparvl

Overview of tested easyconfigs (in order)

• SUCCESS snappy-1.1.8-GCCcore-10.3.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
tcn1 - Linux RHEL 8.4, x86_64, AMD EPYC 7H12 64-Core Processor, Python 3.6.8
See https://gist.github.com/d9c48b9db80f34a58ee9699f9e8c1f50 for a full test report.

[casparvl]

Test report by @casparvl

Overview of tested easyconfigs (in order)

• SUCCESS snappy-1.1.8-GCCcore-10.3.0.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
tcn1 - Linux RHEL 8.4, x86_64, AMD EPYC 7H12 64-Core Processor, Python 3.6.8
See https://gist.github.com/bc0abe1305f52d68c80671e92d8e26a7 for a full test report.

[casparvl]

Looks good to me.

I've tested with snappy (which uses CMakeMake) with and without --filter-deps=CMake. Both builds completed successfully, and both builds did not set things like CMAKE_CXX_FLAGS, indicating that they took the correct code path when evaluating:

if LooseVersion(cmake_version) < LooseVersion('2.8.0') or cache_exists:

I see @Flamefire is more critical on the tests though. So, I'll leave this open. @Flamefire once you're happy too, feel free to hit merge :)

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS Z3-4.8.16-GCCcore-11.3.0.eb
• SUCCESS pybind11-2.6.2-GCCcore-10.3.0.eb
• SUCCESS kallisto-0.48.0-gompi-2021b.eb
• SUCCESS netCDF-4.8.1-iimpi-2021b.eb

Build succeeded for 4 out of 4 (4 easyconfigs in total)
node3114.skitty.os - Linux RHEL 8.4, x86_64, Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz (skylake_avx512), Python 3.6.8
See https://gist.github.com/e45bf82c602358979b0f4f73b84e8d8a for a full test report.

[bartoldeman]

Lgtm this one had sufficient eyes on it and looks good to me too