I am running eigen-13a11181fc5a on Linux 2.6.42.9-2.fc15.i686.PAE #1 SMP i686 i686 i386 GNU/Linux

The following tests FAILED during runing "make check" as part of the Eigen installation:
504 - cblat3 (Failed)
497 - sblat2 (Failed)
498 - sblat3 (Failed)
503 - cblat2 (Failed)
535 - sparse_lu_2 (Failed)

Here is part of the results file for cblat3.

******* FATAL ERROR - COMPUTED RESULT IS LESS THAN HALF ACCURATE *******
EXPECTED RESULT COMPUTED RESULT
1 ( -0.349451 , -0.363636E-01) ( -0.349451 , -0.363636E-01)

The EXPECTED and COPMPUTED are identical.
So, can this really be a test failure?

Thank you.

Indeed, that's weird. What's your compiler version?

Here is an excerpt from gcc -v :

gcc version 4.6.3 20120306 (Red Hat 4.6.3-2) (GCC)