https://github.com/ruby/rubygems/commit/c637007e91

* Correctly pass command line arguments to CMake
* Call CMake twice - once to configure a project and a second time to build (which is the standard way to use CMake). This fixes the previously incorrect assumption that CMake generates a Make file.
* Update the tests to specify a CMake minimum version of 3.26 (which is already two years old). 3.26 is a bit arbritary but it aligns with Rice, and updates from the ancient 3.5 version being used (which CMake generates a warning message saying stop using it!)
* Update the CMake call to use CMAKE_RUNTIME_OUTPUT_DIRECTORY and CMAKE_LIBRARY_OUTPUT_DIRECTORY to tell CMake to copy compiled binaries to the a Gem's lib directory.

Note the updated builder took inspiration from the Cargo Builder, meaning you first create an instance of CmakeBuilder versus just calling class methods.

https://github.com/rubygems/rubygems/commit/9e248d4679

https://github.com/rubygems/rubygems/commit/3e77caeddf

https://github.com/rubygems/rubygems/commit/9264d83421

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

https://github.com/rubygems/rubygems/commit/06ad654120

This changes "test/rubygems/test_case.rb" to "test/rubygems/helper.rb",
and "test/rubygems/test_utilities.rb" to "test/rubygems/utilities.rb".

The two files are a helper for tests, not test files. However, a file
starting with "test_" prefix is handled as a test file directly loaded
by test-unit because Rakefile specifies:

```
t.test_files = FileList['test/**/test_*.rb']
```

Directly loading test/rubygems/test_utilities.rb caused "uninitialized
constant Gem::TestCase". This issue was fixed by
59c682097197fee4052b47e4b4ab86562f3eaa9b, but the fix caused a
"circular require" warning because test_utilities.rb and test_case.rb
are now requiring each other.

Anyway, adding "test_" prefix to a test helper file is confusing, so
this changeset reverts the fix and solve the issue by renaming them.

https://github.com/rubygems/rubygems/commit/6460e018df

https://github.com/rubygems/rubygems/commit/c77868a555