# Install ISSM: https://issm.jpl.nasa.gov/download/

# get Xcode
# install command line xcode
   xcode-select --install

# get ISSM repo
   cd
   mkdir issm
   cd issm
   git clone git@github.com:ISSMteam/ISSM.git

# add to ~/.zshrc
   export ISSM_DIR='/Users/dmenemen/issm/ISSM'
   source $ISSM_DIR/etc/environment.sh

# https://issm.jpl.nasa.gov/download/unix/
   cd $ISSM_DIR/externalpackages/autotools
   install-mac.sh
   source $ISSM_DIR/etc/environment.sh
   cd $ISSM_DIR/externalpackages/cmake
   install.sh
   source $ISSM_DIR/etc/environment.sh
   cd $ISSM_DIR/externalpackages/petsc
   install-3.22-mac.sh
   source $ISSM_DIR/etc/environment.sh
   cd $ISSM_DIR/externalpackages/triangle
   install-mac.sh
   source $ISSM_DIR/etc/environment.sh
   cd $ISSM_DIR/externalpackages/m1qn3
   install-mac.sh
   source $ISSM_DIR/etc/environment.sh
   cd $ISSM_DIR
   autoreconf -ivf

# create configure.sh as per instructions
# or get from test/MITgcm/documents/config-macOS-arm64.sh
   cd $ISSM_DIR
   cp test/MITgcm/documents/config-macOS-arm64.sh configure.sh
   chmod a+x configure.sh
   ./configure.sh
   make
   make install
