How to set the global variable in a function for cmake?

Question

I\'m writing a CMakeLists.txt to generate files and compile the generated files. I create a function to add some file path strings to a global list variable.

My CMak

Answer 1

You need to use set instead of list to affect the variable in the parent scope.

So replace your list command with:

set(source_list ${source_list} ${file_path} PARENT_SCOPE)