[Octave-bug-tracker] [bug #49714] 64-bit documentation clarification

[Mike Miller]

Update of bug #49714 (project octave):

                  Status:               Need Info => Postponed              
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #4:

Yes, it is still experimental and requires an experienced user who knows how
to build the required Fortran libraries using 64-bit integers. I don't know if
that aspect will ever get easier. Fedora providing blas64 and lapack64
libraries is a small first step, but nowhere close to a full solution that can
make this process easier.

It might be possible to look at improving the configure script to try to test
the ARPACK, BLAS, LAPACK, QRUPDATE, and SuiteSparse libraries to see whether
they use 32-bit or 64-bit integers, possibly by writing a test program that
may or may not crash, if that could be done reliably. But for the foreseeable
future a user will still have to pass --enable-64 (or some replacement
configure option) when building Octave to instruct it to use 64-bit integers
when calling Fortran routines.

Closing for now since there's nothing to improve in the docs or the configure
script at this point.

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