python install orange, long time and warnings everywhere

Question

How long does python take to install an orange package usually?

It takes more than half an hour for me and it is still building.

plus, I got warnings everywhere about the same thing

command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]

Does anyone can tell me what is happening?
I really need something can work in the machine learning field in python.

Thanks ahead.

Answer 1

Since no one gives an answer, I think I should summary it myself.
It takes hours, but later, it is perfectly functional.
So, no worries. :-)