Matlab Set Ld_library_path Mac

5 Setting environment variables

Ubuntu is a special case here. Ubuntu's view is that all users want the same libraries and that there is only one place for each library (read discussion in Launchpad bug #366728). Aug 15, 2013  At run-time, Matlab failed locate the correct dependent library for the mex file. Solution: (1) Set environmental variable LDLIBRARYPATH in Matlab, OR (2) Set RPATH in the mex file during the linking procedure. Set LDLIBRARYPATH: Use the setenv and getenv command in Matlab. Step 4 - Set Run-time Library Path. At run-time, you need to tell the system where the API shared libraries reside. On UNIX Systems. Set the library path as follows for the C and Bourne shells. In the commands shown, replace the terms envvar and pathspec with the appropriate values from the table below. The command replaces the existing LDLIBRARYPATH value. If LDLIBRARYPATH is already defined, prepend the new value to the existing value. If you have multiple versions of MATLAB ® installed on your system, the version you use to build your engine applications must be the first listed in your system Path environment.

On Windows, TOMLAB requires the directory tomlab/shared to be included in the environment variable PATH.

On Linux, TOMLAB requires the tomlab/shared folder to be present in the LD_LIBRARY_PATH environment variable. If TOMLAB is installed with super-user privileges on Linux, the installer will add a ldconfig entry to /etc/ld.so.conf.d/tomlab.conf, eliminating the need for manual manipulation of LD_LIBRARY_PATH.

It is possible to set this in several ways.

5.1 Shared libraries path

Ld Library Path

The library search path environment variable name differs betweendifferent systems:

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  • Linux: LD_LIBRARY_PATH
  • Windows: PATH

TOMLAB for Mac OS X does not currently require the corresponding variable to be set, due to all binaries having hard-coded paths to their respective dependencies. This, on the other hand, demands that binary files in the TOMLAB directory are not moved from their locations.

The way environment variables are set varies depending on operating systems and shells.

5.1.1 Windows

To set the PATH environment variable permanently on Windows,do: Control Panel → System → Advanced→ Environment Variables. Assuming TOMLAB was installedin C:tomlab, append (or prepend) C:tomlabshared separated to the otherentries with a semi-colon (;) to the PATH environmentvariable.

The PATH environment variable can also be set temporarily ina running command shell. This is done by doing

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This change will only be applied in that command shell, and willtherefore be discarded when the command shell is terminated.

5.1.2 Linux systems

Set on command line when invoking MATLAB:

where <ml> is the name of your MATLAB executable andtpath is the TOMLAB installation path. If LD_LIBRARY_PATHis already set to something and you wish to preserve this, includethe part in [ ] - but not the actual brackets themselves.

Set in $HOME/.bashrc, $HOME/.profile, $HOME/.cshrc (or$HOME/.matlab7rc.sh if it exists):

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If you have an existing value in LD_LIBRARY_PATH, use a colon : toseparate directories when adding the TOMLAB directory:

If installing for multiple users as super-user, /etc/ld.so.conf.d/tomlab.confWhere is my mac photo library could not be opened. is automatically created, eliminating the need for path manipulation.

Mac OS X installations do not require the corresponding variable DYLD_LIBRARY_PATH to be set, but proper function depends on the locationof the tomlab/shared folder and its contents.

5.1.3 MATLAB 7.8+ on 64-bit Linux

A potential problem concerning shared library versions may lead to crashes when running certain TOMLAB MEX files.This is related to MATLAB and/or the runtime linker loading the wrong version of a support library.

The following workaround is suggested:

Start Matlab 7.8+ from a shell prompt with the following option:

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In the above command, replace $TOMLAB with the path to your TOMLABinstallation, and $MATLAB78 with the name of your MATLAB 7.8binary. This may vary depending on your particular setup, e.g. ifhaving a symbolic link to the MATLAB binary or not. You may need tospecify the full path to the MATLAB installation. For example:

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Additionally, if using the KNITRO solver and you experience errors about libgomp.sonot being found, add an LD_PRELOAD statement for this library too. Use locate or find to find its full path. It is not supplied with TOMLAB.