Merge pull request #683 from peastman/master

Checked in install.sh script

install.sh

+#!/bin/sh
+
+cd $(dirname $0)
+
+# Ask the user for the install location and Python executable.
+
+defaultInstallDir=/usr/local/openmm
+printf "Enter install location (default=${defaultInstallDir}): "
+read installDir
+if [ -z ${installDir} ]
+then
+  installDir=${defaultInstallDir}
+fi
+defaultPythonBin=$(which python)
+printf "Enter path to Python executable"
+if [ ${defaultPythonBin} ]
+then
+  printf " (default=${defaultPythonBin})"
+fi
+printf ": "
+read pythonBin
+if [ -z ${pythonBin} ]
+then
+  pythonBin=${defaultPythonBin}
+fi
+
+# Make sure it's a supported Python version.
+
+pythonOk=$(${pythonBin} -c "import sys; v=sys.version_info; print((v[0]==2 and v[1]>5) or v[0]>2)")
+if [ ${pythonOk} != "True" ]
+then
+  echo "Unsupported Python version.  Only versions 2.6 and higher are supported."
+  exit
+fi
+
+# Copy the files into place.
+
+cp -R docs ${installDir}
+cp -R include ${installDir}
+cp -R lib ${installDir}
+cp -R licenses ${installDir}
+
+# Run the Python installer.
+
+cd python
+export OPENMM_INCLUDE_PATH=${installDir}/include
+export OPENMM_LIB_PATH=${installDir}/lib
+printenv
+if ${pythonBin} setup.py build && ${pythonBin} setup.py install $@
+then
+    # Print instructions to the user.
+
+    echo
+    echo "Installation is complete."
+else
+    echo
+    echo "INSTALLATION FAILED"
+    echo
+    echo "An error prevented the installation from completing.  See above for details." 
+fi