Set Run-Time Library Path for C++ Interface - MATLAB & Simulink (original) (raw)
Main Content
If the C++ library has a compiled library file, then that file and its dependencies must be on your system path or run-time search path (rpath). If the library is completely defined in header or source files, then there might not be a compiled library file. The publisher provides information about the library files.
You can set the path each time that you work on the library or set it permanently by setting values in the system environment. To add the library to the system path permanently, refer to your operating system documentation.
Temporarily Set Run-Time Library Path in MATLAB
On Windows® platforms, if the compiled library files are located on_rtPath_, then in MATLAB® call:
dllPath = 'rtPath'; syspath = getenv('PATH'); setenv('PATH',[dllPath pathsep syspath]);
Note
If you use these commands, then you must set the path each time that you start MATLAB.
Temporarily Set Run-Time Library Path at System Prompt
To set the run-time library path rtPath temporarily, run one of these commands before you start MATLAB. You must restart MATLAB from this system prompt.
- Windows Command Processor:
- Linux®:
LD_LIBRARY_PATH=rtPath:LD_LIBRARY_PATH
export LD_LIBRARY_PATH - macOS (set path and start MATLAB):
DYLD_LIBRARY_PATH=matlabroot/bin/macos:matlabroot/sys/os/macos /matlabexecutable
Replacemacoswith eithermaca64for macOS with Apple silicon ormaci64for macOS with Intel®. Setmatlabexecutableto the full path to theMATLAB_ _`macos`_executable inside the MATLAB application bundle. An example of a full path is/Applications/MATLAB_R2023b.app/Contents/MacOS/MATLAB_maca64.
Note
Start MATLAB in the same operating system prompt where you set the path environment variable. To verify the updated system path, in MATLAB type one of these commands:
getenv('PATH') % Windows getenv('LD_LIBRARY_PATH') % Linux getenv('DYLD_LIBRARY_PATH') % macOS
Note
If you use these commands, then you must set the path each time that you open the operating system prompt.