CMake: Set different name for #cmakedefine variable

Question

I know you can use CMake\'s configure_file to make CMake variables available to your program. For example, I can use

#define ${CMAKE_BUILD_TYPE}
         


        

Answer 1

Here is a fairly simple way to solve it:

In CMakesLists.txt:

if (NOT CMAKE_BUILD_TYPE)
    set (CMAKE_BUILD_TYPE Release)
endif (NOT CMAKE_BUILD_TYPE)

string (TOUPPER ${CMAKE_BUILD_TYPE} BUILD_TYPE_NAME)

configure_file (config.h.in config.h)

And in config.h.in:

#define BUILD_TYPE_${BUILD_TYPE_NAME}

I am, however, still curious if there is a more elegant solution.