How to check whether a target has been added or not?

Question

Assume I have a cmake macro that adds target (library or executable) based on some conditions

macro (conditionally_add target_name target_src condition)
  if (co         


        

Answer 1

Use the TARGET clause of the if command:

conditionally_add (mylib mysrc.cc ${some_condition})
if (TARGET mylib)
  # Do something when target found
endif()