Admin/polyml/settings

tuned signature (again, amending f32ac01aef5e), e.g. relevant for Isabelle/DOF;

# -*- shell-script -*- :mode=shellscript:

POLYML_HOME="$COMPONENT"

if [ -n "$ISABELLE_APPLE_PLATFORM64" ]
then
  if grep "ML_system_apple.*=.*false" "$ISABELLE_HOME_USER/etc/preferences" >/dev/null 2>/dev/null
  then
    ML_PLATFORM="$ISABELLE_PLATFORM64"
  else
    ML_PLATFORM="$ISABELLE_APPLE_PLATFORM64"
  fi
else
  ML_PLATFORM="${ISABELLE_WINDOWS_PLATFORM64:-$ISABELLE_PLATFORM64}"
fi

if grep "ML_system_64.*=.*true" "$ISABELLE_HOME_USER/etc/preferences" >/dev/null 2>/dev/null
then
  ML_OPTIONS="--minheap 1000"
else
  ML_PLATFORM="${ML_PLATFORM/64/64_32}"
  ML_OPTIONS="--minheap 500"
fi

ML_SYSTEM=polyml-5.9
ML_HOME="$POLYML_HOME/$ML_PLATFORM"
ML_SOURCES="$POLYML_HOME/src"

ISABELLE_DOCS_EXAMPLES="$ISABELLE_DOCS_EXAMPLES:\$ML_SOURCES/ROOT.ML"