[Octave-bug-tracker] [bug #47524] lgamma (Inf) can return complex result on Windows systems

[Rik]

Follow-up Comment #13, bug #47524 (project octave):

So it is pretty certain then that we are executing the alternate code.  I just
disabled the principal code branch by commenting out HAVE_LGAMMA_R in config.h
and running the build on a Linux platform.  Sure enough, the alternate code is
now running and I can get it to trigger returning a complex matrix.

I think I can prepare a cset against stable.  The long term fix is probably to
remove the alternate path entirely and use gnulib to provide a replacement
function if the original does not exist.

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