Revert "Yet another attempt"

This reverts commit 9041c98322759f6835e81a6a19a9e347ee7f0768.
Revert "Another test"

This reverts commit c46140a2eb8d961df6a721c250b735135968ef9d.
Revert "Another test"

This reverts commit 487d904c82a8110199b8ab5d91a6fa7a1fea1a98.
Revert "Trying to make OpenMP support directly into the package"

This reverts commit 805a82932e8cc8150bd8a342c6f3abf86f0f50a6.