MATLAB: How to configure the LD_LIBRARY_PATH on Linux and DYLD_LIBRARY_PATH on MAC OS X to point to MCR

Question

How do I configure the LD_LIBRARY_PATH on Linux and DYLD_LIBRARY_PATH on MAC OS X to point to MCR?

Answer 1

To set the LD_LIBRARY_PATH on Linux follow the steps below:

1. Determine Linux shell being used. Use the following command on the Linux terminal:

echo $SHELL

For a TCSH shell this will return "/bin/tcsh"

For a BASH shell this will return "/bin/bash"

2. Check if you have a .tcshrc or .bashrc file ("the startup file") on your system. These files are run whenever a new terminal is opened.

ls -all

3. If the startup file is not present, you can create one for TCSH/BASH respectively:

touch .tcshrc
touch .bashrc

4. Check if LD_LIBRARY_PATH has been set already:

echo $LD_LIBRARY_PATH

This will either return the value for LD_LIBRARY_PATH or the following message:

LD_LIBRARY_PATH: Undefined variable

5. Open the file for editing in vi for TCSH/BASH respectively:

vi .tcshrc
vi .bashrc

6. Append the paths from the Configuration Notes dialog box ("<mypath>") obtained during MCR installation.

If LD_LIBRARY_PATH was not already set (refer to Step 4), append the variable using the first line. Otherwise, use the second.

For BASH:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:<mypath>
or
export LD_LIBRARY_PATH=<mypath>

For TCSH:

setenv LD_LIBRARY_PATH {$LD_LIBRARY_PATH}:<mypath>
or
setenv LD_LIBRARY_PATH <mypath>

7. Save and exit vi using Shift + :wq

8. Confirm the LD_LIBRARY_PATH has been set correctly. Open a new terminal and execute:

echo $LD_LIBRARY_PATH

This should now reflect the paths to the MCR that you just set.

NOTE:

To set DYLD_LIBRARY_PATH on MAC OS X 10.11 and newer, you must use the following syntax when running an application ("run.app"):

DYLD_LIBRARY_PATH="/my/path/to/mcr" ./run.app

This is because dynamic library environment variables are no longer copied to child processes, due to System Integrity Protection.