CMake - add_executable called with incorrect number of arguments

Question

I am trying to organize a C++ project which starts to have a lot of files. I would like to create two executables which share some source file using Cmake. I have found an i

Answer 1

You have to quote the variables.

add_executable(test_mss "${Common_sources}" "${Mss_sources}")

Otherwise for an empty variable, CMake replaces the variable by nothing and the number of arguments seems to be wrong.

Similar problem: https://stackoverflow.com/a/39733128/2799037