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Robert

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27 Nov 2013 LBFGSB (L-BFGS-B) mex wrapper Mex wrapper for lbfgsb v3.0 fortan library. L-bfgs-b solves box-constrained optimization. Author: Stephen Becker

Dear Chenchen Tong,

I got the same error, when running compile_mex.m on Ubuntu 12.04, gcc-4.6 and MATLAB R2013a:

=== lbfgsb "driver1" test problem, 2D ===
Invalid MEX-file
'.../lbfgsb.3.0_1.2/lbfgsb3.0_mex1.2/lbfgsb_wrapper.mexa64':'.../matlabR2013a/bin/glnxa64/../../sys/os/glnxa64/libgfortran.so.3: version
`GFORTRAN_1.4' not found (required by
.../lbfgsb.3.0_1.2/lbfgsb3.0_mex1.2/lbfgsb_wrapper.mexa64)

For me the problem was solved by running MATLAB with LD_PRELOAD and LD_LIBRARY_PATH, pointing to the system libraries:

LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libgfortran.so.3 LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu matlab

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