fix windows compilation, better cmake output

Gabriele Contini

2019-12-14 e3e83c70085d9a9c82b643b46d918fe3a2d21e03

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MACRO(EVAL_CONDITION name)
   IF(${ARGN})
     SET(${name} 1)
   ELSE(${ARGN})
     SET(${name} 0)
   ENDIF(${ARGN})
ENDMACRO(EVAL_CONDITION)