--- /dev/null
+++ setup/pymol_macports
@@ -0,0 +1,21 @@
+#!/bin/sh
+#
+# PyMOL startup script
+#
+# ==============================================================
+# Set PYMOL_PATH to point at the correct location on your system
+#
+PYMOL_PATH=@@PYTHON_PKGDIR@@/pymol/pymol_path
+export PYMOL_PATH
+#
+# ==============================================================
+# (no changes usually required below here)
+#
+# python modules
+#
+HasRadeon=($(system_profiler SPDisplaysDataType | grep Radeon ))
+if [[ -z "$HasRadeon"  ]];then
+  exec @@PYTHON_BINARY@@ @@PYTHON_PKGDIR@@/pymol/__init__.py -d "_ set stereo_double_pump_mono,quiet=1" "$@"
+else
+  exec @@PYTHON_BINARY@@ @@PYTHON_PKGDIR@@/pymol/__init__.py -d "_ set stereo_double_pump_mono,quiet=1" "-M" "$@"
+fi