Does unity iOS build have any external dependencies like for example java or python?

I am asking the question because I have an app that fails to build for iOS on my main system but works fine on a VM using the same OS.
I have had previous problems with products that have failed due to my having either Java at the wrong version or more than one version installed or python the same situation.
The dependencies scan of Unity does not show up any dependencies but I feel I have to ask as the scan of other problem products has also shown no detected dependencies but they were there as I have proved via debugging.
Anyone know?