How to setup gfortran on Mac OSX 10.9 and MatLab R2014a?

Question

Nathan 2014-4-5

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/124597-how-to-setup-gfortran-on-mac-osx-10-9-and-matlab-r2014a

评论： Stephen Shank 2014-9-7

采纳的回答： Ken Atwell

MatLab 2014a Mac OSX 10.9.2 Maverick Mex gfortran configuration

I'm trying to configure using mex -setup FORTRAN and I'm getting the message:

mex -setup FORTRAN Error using mex No supported compiler or SDK was found.

But I have gfortran 4.6.4 installed via fink. The website says that 4.3.x is supported, but isn't gfortran backward compatible in their revisions; therefore, 4.6.4 or even 4.8.2 (the latest for OSX 10.9 as of this posting) should work right? How does one set the fortran compiler options?

Is it best to finesse things with a higher version of gfortran or to install the exact version in the MatLab compatibility chart calls for? Why did the C and C++ portions of the gcc package work just fine and not the gfortran? What happened to the MEXOPTS.sh file in R2014a?

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Stephen Shank 2014-5-7

编辑：Stephen Shank 2014-5-7

Any comment on the backward compatibility question of gfortran? I installed gcc4.3 via MacPorts which gave me "gfortran-mp-4.3." I showed mex where this was located (using the link below). The timesTwo.F example compiles and can be invoked from the MATLAB command line. However, the yprime.F example compiles but unfortunately crashes MATLAB when invoked. It would be nice to be able to use the latest available binary from the gfortran binaries page. But when I try this, I get the following error:

Error using mex Undefined symbols for architecture x86_64: "_mexfunction_", referenced from: -exported_symbol[s_list] command line option ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

and am not sure how to proceed...

Stephen Shank 2014-9-7

在 MATLAB Online 中打开

Well, this is embarrassing... but fortunately I resolved the issue above. Turns out the Fortran yprime examples are dependent on TWO files. So running

mex -v yprimef.F yprimefg.F

did the trick. I cannot read Fortran but need to get some code compiled, so I hope this comment will be useful to someone in a similar situation.

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Answer 1

Ken Atwell 2014-4-7

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/124597-how-to-setup-gfortran-on-mac-osx-10-9-and-matlab-r2014a#answer_132612

在 MATLAB Online 中打开

Try:

>> mex -v <filename.f>

This will give you verbose output that should help pinpoint why MEX can't find gfortan. Copy and paste the full output into this Answer.

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Nathan 2014-4-7

@ Ken Atwell

Thanks for reading my question. following the example on the mex page in the help files: http://www.mathworks.com/help/matlab/ref/mex.html

EDU>> copyfile(fullfile(matlabroot,'extern','examples','refbook',... 'loadsparse.F'),'.','f');

EDU>> copyfile(fullfile(matlabroot,'extern','examples','refbook',... 'fulltosparse.F'),'.','f');

EDU>> mex -v -largeArrayDims fulltosparse.F loadsparse.F

Verbose mode is on.

No MEX options file identified; looking for an implicit selection.

... Looking for compiler 'gfortran' ...

... Executing command 'which gfortran' ...No.

... Looking for file '/usr/local/bin/gfortran' ...No.

Did not find installed compiler 'gfortran'.

Error using mex

No supported compiler or SDK was found. For options, visit

http://www.mathworks.com/support/compilers/R2014a/maci64.

and from terminal......

XXXXXXXXXXXXXX:~ XXXXXXX$ gfortran -v

Using built-in specs. COLLECT_GCC=gfortran COLLECT_LTO_WRAPPER=/sw/lib/gcc4.6/libexec/gcc/x86_64-apple-darwin11.4.2/4.6.4/lto-wrapper Target: x86_64-apple-darwin11.4.2 Configured with: ../gcc-4.6.4/configure --prefix=/sw --prefix=/sw/lib/gcc4.6 --mandir=/sw/share/man --infodir=/sw/lib/gcc4.6/info --enable-languages=c,c++,fortran,lto,objc,obj-c++,java --with-gmp=/sw --with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw --with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib --program-suffix=-fsf-4.6 --enable-cloog-backend=isl Thread model: posix gcc version 4.6.4 (GCC)

XXXXXXXXXXXX:~ XXXXXXXXXXX$

Ok, so matlab is looking for a gfortran compiler in usr/local/bin and there is not one installed there as fink installs in the /sw directory by default. How can I change or add a path for Matlab to look? or do I have to uninstall the fink installed gfortran 4.6.4 and install a gfortran compiler in use/local/bin?

Nathan 2014-4-7

在 MATLAB Online 中打开

Attempt #2, gcc 4.3.X is pretty old wondering why MATLAB still uses it???

XXXX:~ XXXX$ fink list "gcc*"
Information about 9091 packages read in 1 seconds.
     gcc4.2                            4.2-0                     [virtual package representing the gcc 4.2 compiler]
 i   gcc46                             4.6.4-1001                GNU Compiler Collection Version 4.6
 i   gcc46-compiler                    4.6.4-1001                Compiler Binaries for gcc46
 i   gcc46-shlibs                      4.6.4-1001                Shared libraries for gcc4
     gcc47                             4.7.3-1001                GNU Compiler Collection Version 4.7
     gcc47-compiler                    4.7.3-1001                Compiler Binaries for gcc47
     gcc47-shlibs                      4.7.3-1001                Shared libraries for gcc4
     gcc48                             4.8.2-1001                GNU Compiler Collection Version 4.8
     gcc48-compiler                    4.8.2-1001                Compiler Binaries for gcc48
     gcc48-shlibs                      4.8.2-1001                Shared libraries for gcc4
     gccxml                            0.9-20130502.1            XML output extension to GCC
XXX:/ XXXX$ sudo ln -s /sw/lib/gcc4.6/bin/gfortran-fsf-4.6  /usr/local/bin/gfortran
XXXX:/ XXXX$ gfortran -print-file-name=libgfortran.dylib
/sw/lib/gcc4.6/lib/gcc/x86_64-apple-darwin11.4.2/4.6.4/../../../libgfortran.dylib
XXXXXXX:/ XXXX$ which gfortran
/sw/bin/gfortran

AFTER creating a symbolic link above still no joy!

EDU>> mex -v -largeArrayDims fulltosparse.F loadsparse.F
Verbose mode is on.
No MEX options file identified; looking for an implicit selection.
... Looking for compiler 'gfortran' ...
... Executing command 'which gfortran' ...No.
... Looking for file '/usr/local/bin/gfortran' ...Yes.
... Looking for folder '/usr/local/bin' ...Yes.
... Executing command 'which gfortran' ...No.
... Looking for file '/usr/local/bin/gfortran' ...Yes.
... Executing command 'gfortran -print-file-name=libgfortran.dylib' ...No.
Did not find installed compiler 'gfortran'.
Error using mex
No supported compiler or SDK was found. For options, visit 
http://www.mathworks.com/support/compilers/R2014a/maci64.

Ken Atwell 2014-4-9

编辑：Ken Atwell 2014-4-10

See http://www.mathworks.com/matlabcentral/answers/116922-mex-cannot-find-gfortran-compiler-mac-os for the situation where the Terminal window can "find" gfortran, but MEX cannot.

Nathan 2014-4-9

@ Ken,

Thanks a million for your posts! After following the suggestions in the link directly above I was able to add the path to the startup.m file and finish following the example above with success.

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How to setup gfortran on Mac OSX 10.9 and MatLab R2014a?

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