Hello all,

I've recently checked and updated the various "optional extras"
available for gretl on Mac. Here's the current status.

1) X-13ARIMA

In https://sourceforge.net/projects/gretl/files/x13as/ you can find

x13as-mac-intel.tar.gz
x13as-mac-arm64.tar.gz

which can be installed from within gretl with the command

pkg install <package-file>

2) TRAMO/SEATS

In https://sourceforge.net/projects/gretl/files/tramo/ you can find

tramo-seats-mac-intel.tar.gz
tramo-seats-mac-arm64.tar.gz

which can also be installed via "pkg install".

3) MPI

In https://sourceforge.net/projects/gretl/files/mpi we have

openmpi-1.6.5-mac-intel.tar.xz
openmpi-4.1.5-mac-arm64.tar.xz

These cannot be installed via "pkg install" but there are instructions
in the README in the mpi directory, and also in the current MPI guide:

https://sourceforge.net/projects/gretl/files/manual/gretl-mpi.pdf

HOWEVER, please note that a little hack is required to get MPI 4.1.5
working on arm64 with gretl 2023b (or earlier). After installing the
package into your root directory, navigate (in a Terminal window) to
the "/opt" directory and create a symlink:

cd /opt
sudo ln -s openmpi openmpi-4.1

After this the command "ls -l" should show, inter alia,

openmpi-4.1 -> openmpi

This hack is not needed for the July 31 snapshot or later.

Allin Cottrell
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