[CMake] Parameters of functions

[Micha Renner]

This is funny:
FUNCTION(build var)
	MESSAGE(STATUS "var: " ${${var}})
ENDFUNCTION(build)

SET(var red blue yellow green)
build(var)

Output:
-- var: var

SET(varX red blue yellow green)
build(varX)
Output:
-- var: redblueyellowgreen

Greetings
Micha