2: FAIL!  : AnalitzaTest::testCorrection(lambda1) Compared values are not the same
2:    Actual   (evalResult.toString()): "a<2"
2:    Expected (result)               : "false"

Introduced with 093061c0.

In [1] the build system was changed to use Eigen3's imported targets
provided upstream. These are only available with the cmake config
files, not the FindEigen3 module (also upstream). With the basic
signature of find_package() it searches in Module mode first, finding
Eigen3 via FindEigen3.cmake and erroring out afterwards because
Eigen3::Eigen is an unknown target.
Forcing find_package to use the Config mode fixes that.

[1] 7f3d443c

...by using QT_MAJOR_VERSION instead of QT_REQUIRED_VERSION/hard-coding
"5", introduced by 05dc6051.

CCMAIL: montel@kde.org

This avoids leaking the Eigen dependency to consumers

And use its imported target

Thanks to Stephen Swanson for the idea and initial implementation.

The cmake requirement is new enough for that. Gets rid of a cmake
warning.

GIT_SILENT

Gets rid of a cmake warning. Also format it a tad nicer.

GIT_SILENT

Since CMake 3.0 the ECM thing doesn't offer any benefit