Compiler issue -- LEON3 BCC Compiler (sparc-elf-3.4.4)

I cannot get it running with my arduino IDE.
It is part of a GPS board by the name NavSpark-GL:

Without the compiler I cannot upload any firmware and using another IDE creates issues since the code is written for arduino IDE.

So the question is: How do I get it running in my arduino IDE either in Windows and Linux Ubuntu 16.04?