Runtime failures with gfortran-12 on f36 at default (%optflags) compilation optimization levels

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I have two packages where a workaround of reducing the compilation optimization level avoids runtime failures:

1 Use of -O1 to avoid a numerical test error "zdot wrong"  https://github.com/GlobalArrays/ga/issues/249

2 Use of -fno-lto to avoid segmentation faults https://gitlab.com/QEF/q-e/-/issues/460

It seems like the above problems are specific to gfortran-12 on f36.
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