Question on Build scripts & RTC Build

Hi all

I have a batch file which is calling CMake which also does some functionality

I want to call this batch file for Build.

If for some reason, CMake fails and throws error the same is not reported as failure in RTC. If my understanding is correct RTC is calling the Batch file and the Batch file calls CMake. The execution of batch file is successful and hence it is reported as success.

But I want the RTC to report CMake is failed which is called via Batch files

How can i achieve this?

I was looking at creating Ant tasks but don't have one proper example

thank you

Karthik