[CMake] Indrect function calls

[Firegurafiku]

Is there a way to indirectly call a function which name is a variable?
I want to do something like that:

    function(avr_compiler_gcc_cflags CFLAGS) ...
    function(avr_compiler_iar_cflags CGLAGS) ...

    set(COMPILER "gcc")
    call("avr_compiler_${COMPILER}_cflags" CFLAGS)

Is there exists function similar to call()?
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Firegurafiku