MATLAB: What environment variable is used to specify the search path for loading shared libraries into MATLAB on the Mac OS X

envenvironmentexecutableld_library_pathmacmacintoshMATLAB Compilerososxpathsetenvstand-alonestandalonevariablex

I am trying to follow your instructions in the MATLAB Compiler documentation and in the online help to distribute a stand-alone application on the Macintosh. After moving the executable onto my target computer, unpacking the libraries, and then adding the bin/<ARCH> directory to the LD_LIBRARY_PATH environment variable, I am still unable to run the executable.

I receive the error during run-time:

 dyld: ./grasp can't open library: 
 /devel/R12/build/extern/lib/mac/libmwsgl.dylib  (No such file or 
 directory, errno = 2)
 Trace/BPT trap

Best Answer

This bug has been fixed for Release 14 (R14). For previous releases, please read below for any possible workarounds:

The LD_LIBRARY_PATH environment variable is not valid for use on the Mac OS X. The correct equivalent variable is DYLD_LIBRARY_PATH and it should be set to the directory location of the MATLAB Math and Graphics libraries. You set this environment variable by doing the following shell command prior to running your executable:

Determine what shell you are using:

 echo $SHELL

Look for bash, or tcsh.

If bash:

 export DYLD_LIBRARY_PATH=$MGLINSTALLER/bin/mac/:$DYLD_LIBRARY_PATH

If tcsh:

 setenv DYLD_LIBRARY_PATH $MGLINSTALLER/bin/mac/:$DYLD_LIBRARY_PATH

where $MGLINSTALLER represents the MGLINSTALLER installation directory.

Related Solutions

MATLAB: What is the setting for DYLD_LIBRARY_PATH on Intel Mac to run an application created with MATLAB Compiler 4.5 (R2006b)

This bug has been fixed in Release 2007a (R2007a). For previous product releases, read below for any possible workarounds:

There is an error within the documentation for MATLAB Compiler 4.5 (R2006b) Intel Mac beta within the reference section titled "UNIX Settings for Development and Testing" and "UNIX Paths for Runtime Deployment".

The settings listed under the subsection for Mac OS X are for Macs with PowerPC chips. For Intel Macs the settings should be as follows.

For Development and Testing on computers with MATLAB Compiler installed:

 setenv DYLD_LIBRARY_PATH 
 matlabroot/bin/maci: 
 matlabroot/sys/os/maci: 
 /System/Library/Frameworks/JavaVM.framework/JavaVM: 
 /System/Library/Frameworks/JavaVM.framework/Libraries
 setenv XAPPLRESDIR matlabroot/X11/app-defaults

For Runtime Deployment on computers with the MCR installed:

 setenv DYLD_LIBRARY_PATH 
 mcr_root/version/runtime/maci: 
 mcr_root/version/sys/os/maci: 
 mcr_root/version/bin/maci: 
 /System/Library/Frameworks/JavaVM.framework/JavaVM: 
 /System/Library/Frameworks/JavaVM.framework/Libraries
 setenv XAPPLRESDIR mcr_root/version/X11/app-defaults

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

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.

Best Answer

Related Solutions

MATLAB: What is the setting for DYLD_LIBRARY_PATH on Intel Mac to run an application created with MATLAB Compiler 4.5 (R2006b)

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

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