I made a build dir inside eigen3.2.1 folder, I typed

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 ccmake ..

and I got:

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CMake Error at CMakeLists.txt:318 (set_target_properties):
   set_target_properties Can not find target to add properties to:
   compile_tut_arithmetic_transpose_aliasing
 Call Stack (most recent call first):
   doc/snippets/CMakeLists.txt:30 (ei_add_target_property)


I overcome this error trasnsforming line 30 into a comment (file PATH_OF_EIGEN_FOLDER/doc/snippets/CMakeLists.txt)
It is probable that it doesn't make a bug in eigen but I would be grateful if someone provide a real solution to this error.