[Octave-bug-tracker] [bug #45659] version function: options and return values supported by Matlab

[John W. Eaton]

Follow-up Comment #30, bug #45659 (project octave):

As for the blas and lapack versions, there is no simple platform-independent
way to check for that information.

The info at build time isn't useful because you can build against the
reference blas but use OpenBLAS, ATLAS, or some other vendor blas at run
time.

Additionaly, there is no standard way for the blas or lapack library to report
version info.  I don't think that information is even stored for the reference
versions of the lapack or blas libraries.

Matlab can provide this information because they distribute proprietary
binaries that are linked with speciic blas and lapack libraries.  As I
understand it replacing the Matlab blas or lapack libraries is explicitly
unsupported, so if you swap them out yourself and something breaks, it's your
fault.

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