RFR: 7903591: Do not re-run cmake tasks if inputs didn't change

[Jorn Vernee]

On Wed, 22 Nov 2023 13:22:04 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

> Defines inputs and outputs for the cmake* tasks, to avoid re-running them every time.
> 
> I also noticed that the CMakeLists.txt still uses a glob corresponding to the old test directory structure. It will essentially look for `*lib*.c` files from the project root. I've fixed this to only look in the `test` sub directory.

Closing this after some more thought. The build system (that cmake generates) should decide for us whether we need to re-build anything, rather than use trying to define that in the gradle file. So, we should always invoke cmake, and let it decide if anything needs to be done instead.

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PR Comment: https://git.openjdk.org/jextract/pull/142#issuecomment-1823555803