Sorry not truly C++, how set PIC flag in build by Cmake command line

[marhuum]

How to set PIC flag in build by use of cmake command line?
as in gcc is the option -fPIC
e.g.
cmake -G "Unix Makefiles" .....

[MikeyBoy]

From a simple Google search for "cmake fPIC":

https://stackoverflow.com/questions/38296756/what-is-the-idiomatic-way-in-cmake-to-add-the-fpic-compiler-option