Update CMake version in docs

[Steven-Roberts]

These also might need updating:

sundials/cmake/macros/SundialsAddLibrary.cmake

Lines 254 to 257 in b685654

	# We use target_sources since target_link_libraries does not work
	# as expected with CMake 3.12 (see CMake issues 18090 and 18692).
	# TODO(DJG): Update whenever we require CMake 3.14 or newer
	target_sources(${_actual_target_name} PRIVATE $<TARGET_OBJECTS:${_tmp}>)

sundials/.gitlab/spack_packages/sundials/package.py

Lines 210 to 211 in f64d994

	depends_on("[email protected]:", when="~cuda", type="build")
	depends_on("[email protected]:", when="+cuda", type="build")

[gardner48]

These also might need updating:

sundials/cmake/macros/SundialsAddLibrary.cmake

Lines 254 to 257 in b685654

	# We use target_sources since target_link_libraries does not work
	# as expected with CMake 3.12 (see CMake issues 18090 and 18692).
	# TODO(DJG): Update whenever we require CMake 3.14 or newer
	target_sources(${_actual_target_name} PRIVATE $<TARGET_OBJECTS:${_tmp}>)

This has been addressed in #506

sundials/.gitlab/spack_packages/sundials/package.py

Lines 210 to 211 in f64d994

	depends_on("[email protected]:", when="~cuda", type="build")
	depends_on("[email protected]:", when="+cuda", type="build")

The spack package does need to be updated. Spack will prefer new CMake versions which is why this hasn't been an issue.

[Steven-Roberts]

The spack package does need to be updated. Spack will prefer new CMake versions which is why this hasn't been an issue.

Can we fix that in this PR? I assume we want

depends_on("[email protected]:", type="build") 

[balos1]

It will need to be something like

depends_on("[email protected]:", type="build", when=":7.0.0") 
depends_on("[email protected]:", type="build", when="7.0.0:") 

FWIW, the Spack package in this repo is only used internally for our CI so it doesnt really matter. Additionally, the package needs to actually be synced with the one in Spack proper (and this change needs to be made there too).