Makefile-based project: Info bar "The code model could not parse an included file, which might lead to slow or incorrect code completion and highlighting, for example"

There is warning: The code model could not parse an included file, which might lead to slow or incorrect code completion and highlighting, for example
error: "You must build your code with position independent code if Qt was built with -reduce-relocations. " "Compile your code with -fPIC (-fPIE is not enough)."
with Clang Code Model, adding -fPIC to Clang Code Model Warning flags didn't help