GNU C & C++ Compile Tools x64 error in Simulink

[cabala]

Hi, this is my first time using NI Linux RT with a compiled Simulink project and targeted to a controller using Veristand. The first two times I did this back in 2014 and 2017 i was still using Pharlap, whether that matters or not is unclear but in any event while trying to compile the Simulink model I get this error:

"You have not installed the C/C++ Development Tools for NI Linux Real-Time 2017, Eclipse Edition. To learn how to install toolchains, refer to the Getting Started page."

I did that and found that the Eclispe Edition toolset is no longer maintained and followed the links to "Getting Started with C/C++ Development for NI Linux Real-Time" page and then followed the link to the "GNU C & C++ Compile Tools x64" download page. However, this just downloads a .tar.xz file and I am unclear how to use it. I tried extracting it but that didn't really work. I am on Windows 11 to be clear.  

Any advice on what I could be doing wrong here? 

[cabala]

I got a little further. I didn't realize the 7-zip errors during extraction were a permissions issue. Ran 7-zip as admin then extracted the archive which did work but now what? I ran the batch file but didn't seem to correct the error. It's really not clear how to install this toolchain at all. 

[ZYOng]

Try installing C/C++ Development Tools Download instead.

[cabala]

For some reason, NI won't let me download that. The page requests I register for some reason. I guess I need to reach out to them. 

I did find this information: https://nilrt-docs.ni.com/cross_compile/config_dev_system.html which provided clearer instructions on how to extract and set path variables for the toolchain. However, after doing that and rebooting it didn't resolve the issue. For some reason Simulink really wants the 2017, eclipse edition but it's not clear why or how to point it to the newer toolchain I just downloaded. 

[cabala · Accepted solution]

I was able to locate another post that clarified in the NI package manager to choose the gear icon and check the first two boxes which gave me a packages tab, then I could search for C/C++ and the 2017, eclipse version popped up. I was able to install it from the package manager. 

I restarted Matlab and the code was built without any errors (got a couple warnings but i'll address that in a different post). I also get an error when trying to import the .so file in Veristand but it feels like progress. 

Not sure why I can't get Matlab to "see" the newer toolchain. I wonder if it is a path issue. Per the instructions in the link above you are supposed to extract to c:\build\<toolchain version>\x64 which I did. The toolchain is listed as 2023Q4 on NI downloads so that's what I called the folder but I wonder if it doesn't like that for some reason. Or I downloaded the wrong toolchain? I selected Windows but my target is NI LinuxRT so maybe I should have downloaded the linux toolchain? It's all very well documented I must say /s. 

I noticed the 2017 version installed to c:\build\17.0\x64 and so on but overall, the system path variables are much different. Not even sure I downloaded the right toolchain originally now.