Documentation Enhancement: Installing CDT

[linusboyle]

Trying to build ultimate following the guide here. It turns out that a very important step is missing: the CDT development kit should be installed from the Eclipse Marketplace, otherwise it won't compile. It takes me a long time to figure this out.

[schuessf]

I never had to install CDT from the marketplace. Did you install the correct Eclipse IDE (i.e., Eclipse IDE for RCP and RAP Developers) and which version of it?

[linusboyle]

Hi @schuessf it is the latest version (2024.12) of Eclipse IDE for RCP and RAP Developers. Download link.

[linusboyle]

And I think that's the intended behaviour. From this page there's no CDT included in Eclipse IDE for RCP and RAP Developers. For comparison it's in the actual Eclipse IDE for C/C++

[bahnwaerter]

Hi @linusboyle, that's correct. CDT is not delivered with Eclipse RCP. We only need the CDT dependencies for building Ultimate and they are specified using a PDE target-platform file. Did you activate the target-platform trunk/source/BA_SiteRepository/Ultimate_E4.32_Java21.target in Eclipse RCP before building all Ultimate plugins?

[linusboyle]

Hi @bahnwaerter, I did load platform before the build. It took some time to download packages, but somehow it did not download CDT, which is weird.

[bahnwaerter]

This is indeed strange. It must be possible to connect to https://download.eclipse.org/releases/2024-06.
Then Eclipse RCP can download the CDT dependencies automatically and displays the version of the dependencies after a successful download:

Maybe access to the server is not possible due to a firewall setting. This should be checked first. If problems still occur, feel free to attach log files or screenshots.