[Octave-bug-tracker] [bug #50463] gsvd implementation uses functions removed from lapack >= 3.6.0

[Mike Miller]

Follow-up Comment #6, bug #50463 (project octave):

I don't have a patch, but a safer alternative might be to detect whether the
LAPACK library that Octave has already loaded has the newer function or not.

Something like


void *fcn = dlsym (RTLD_DEFAULT, STRINGIZE (F77_FUNC (dggsvd3, DGGSVD3)));
if (fcn)
  {
    // code to use DGGSVD3
  }
else
  {
    // code to use DGGSVD
  }


and of course need to adapt this to other operating systems.

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