MATLAB: Is the GNU gfortran compiler supported for use with the MEX command

apicompilerfortrangfortrangnuMATLABmexsupport

I would like to use the GNU gfortran compiler to build Fortran MEX code using using the MEX command.

Best Answer

The GNU gfortran compiler support for compiling MEX files was introduced in MATLAB 7.12 (R2011a) and later.

For a list of supported compilers, please refer to the following link:

http://www.mathworks.com/support/compilers/current_release/

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MATLAB: Compile Error ( MEX could not find the library )

i'm using code to the created the MEX file (me_HaarDetectOpenCV.mexw64)

mex -largeArrayDims -I'C:\opencv\build\include' -L'C:\opencv\build\x64\vc11\lib\realese'  -lopencv_core247 -lopencv_imgproc247 -lopencv_objdetect247 me_HaarDetectOpenCV.cpp

MATLAB: Gfortran not found by mex -setup

Well, I found the solution embarrasingly quickly after continuing to search.

See this answer. The blog post linked in that answer gives instructions for applying the fix on a Mac; ignore all instructions about the Mac SDK.

Quick solution:

Edit /usr/local/MATLAB/R2016b/bin/glnxa64/mexopts/gfortran.xml
In the line beginning with "LINKLIBS=..." remove both references to gfortranbegin
Add -lgcc_s.1 to the end of that line inside the quotes
At the bottom of the file, within the GFORTRANBEGIN_LIBDIR block, replace 'dirExists name="$$"' with 'dirExists name="/"'.
Save the file and set up the Fortran compiler as normal. This worked for me on Gentoo using gfortran 8.2.0-r6.

Best Answer

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MATLAB: Compile Error ( MEX could not find the library )

MATLAB: Gfortran not found by mex -setup

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