How to define preprocessor definition for each configuration in CLion?

Question

I have several build profiles in CLion -> Settings -> Build, Execution, Deployment -> CMake. How can I set the preprocessor definitions for each profile, regardless of which compiler I use?

Answer 1

1. Go to Settings -> Build, Execution, Deployment -> CMake.
2. Select the profile for which you want to set preprocessor definition.
3. Write in the CMake options field: -DYOUR_DEFINE_VARIABLE=1
4. In your CMakeLists.txt write the following:

if (YOUR_DEFINE_VARIABLE)
    add_definitions(-DYOUR_DEFINE_VARIABLE=1)
endif (YOUR_DEFINE_VARIABLE)

Answer 2

I didn't try this but this should work

if (CMAKE_CONFIGURATION_TYPES)
        string(TOLOWER "${CMAKE_CONFIGURATION_TYPES}" CMAKE_CONFIGURATION_TYPES_LOWER)
else()
        string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_CONFIGURATION_TYPES_LOWER)
endif()

foreach(config ${CMAKE_CONFIGURATION_TYPES_LOWER})
        if (${config} MATCHES "debug")
                #add preprocessor definition something like this bellow
                add_definitions(-DFOO -DBAR ...)
        elseif(${config} MATCHES "release")
                #and so on...
        endif()
endforeach()

So, to correctly check strings, we convert build configuration types to lower case, and then we check if config from the type matches this custom configuration types. if it does, then we can add some preprocessor definitions, etc (