MATLAB: Using a shared library without an installed compiler

shared library loadlibrary compiler

Hello,

From Matlab, we are calling functions in a shared library via the loadlibrary function. That works fine.

The loadlibrary function however requires the user to provide a header file, and a compiler. Our customers do not all have a compiler installed, or are complaining if we request them to install a compiler in order to use our shared library. So my question is:

is there a way we can "do some preprocessing" (on our computer, with installed Matlab and compiler) so that a compiler is not needed anymore on the computer of our customers?

Thanks for any insight

Best Answer

Load the library on your machine using the mfilename option to loadlibrary then supply the generated prototype file and thunk library to your customers who can load the library with the command:

loadlibrary(@prototype_file)

This also results in much faster loading of the library.

See help on loadlibrary for more information on prototype and thunk files.

Related Solutions

MATLAB: Possible to distribute shared .dll without requiring end users to have C compiler

A similar question was asked here previously: http://www.mathworks.com/matlabcentral/answers/32007-using-mcc-to-compile-a-code-that-uses-a-dll-library

MATLAB: How to use LOADLIBRARY in a deployed program generated from MATLAB Compiler

The compiler is not needed on deployed machine.

One can generate prototype files, and pack them using -a option together with MCC.

Here is an example:

At command line :

loadlibrary('shrlibsample','shrlibsample.h','mfilename','mylibraryfile');

This would generates all the prototype files , including a m file called "mylibraryfile.m", which provides LOADLIBRARY entry point.

This command would only need to be performed once.

In deployed program, you may use LOADLIBRARY in this way:

loadlibrary('shrlibsample', @mylibraryfile);
libfunctions('shrlibsample','-full');

The next step is to use MATLAB compiler to compile the program, you would need to include the prototype files in the project.

For example in a 64 bit MATLAB, you would need to include:

1.mylibraryfile.m

2.shrlibsample.dll

3.shrlibsample_thunk_pcwin64.dll

mcc -v -m out.m -a 'mylibraryfile.m' -a 'shrlibsample.dll' -a 'shrlibsample_thunk_pcwin64.dll'

out.m is the MATLAB program that uses LOADLIBRARY to load the file "mylibraryFile".

Best Answer

Related Solutions

MATLAB: Possible to distribute shared .dll without requiring end users to have C compiler

MATLAB: How to use LOADLIBRARY in a deployed program generated from MATLAB Compiler

Related Question