How do I add a configuration variable to my CMake script?

Question

I'd like to add a variable that the user must set after clicking "Configure" in cmake-gui. Is there a way to do this?

question from:https://stackoverflow.com/questions/7294269/how-do-i-add-a-configuration-variable-to-my-cmake-script

Answer 1

Using the set command, specify CACHE parameters, e.g.

set(NAME_INCLUDE "default value" CACHE FILEPATH "description")
set(NAME_LIB "default value" CACHE FILEPATH "description")

In the GUI CMake will group all variables with the same prefix.

See the CMake documentation for set.