MEX/Lapack/Blas problem

I don't have technical background, I am just trying to configure a solver called Blendenpik (https://uk.mathworks.com/matlabcentral/fileexchange/25241-blendenpik), and get the following error:

MEX completed successfully.

Building with 'Xcode with Clang'.

/Users/cemgormezano/Documents/Dissertation/blendenpik/dense_underdetermined_lsqr.c:90:4: warning: implicit declaration of function 'dtrsv' is invalid in C99 [-Wimplicit-function-declaration]

DTRSV("L", "N", "Not Unit", &m, L, &m, u, &int_one);

^

/Users/cemgormezano/Documents/Dissertation/blendenpik/dense_underdetermined_lsqr.c:16:15: note: expanded from macro 'DTRSV'

#define DTRSV dtrsv

^

/Users/cemgormezano/Documents/Dissertation/blendenpik/dense_underdetermined_lsqr.c:100:3: warning: implicit declaration of function 'dgemv' is invalid in C99 [-Wimplicit-function-declaration]

DGEMV("T", &m, &n, &dbl_one, A, &m, z, &int_one, &dbl_zero, v, &int_one);

^

/Users/cemgormezano/Documents/Dissertation/blendenpik/dense_underdetermined_lsqr.c:15:15: note: expanded from macro 'DGEMV'

#define DGEMV dgemv

^

2 warnings generated.

MEX completed successfully.

Building FFTW's wisdom...

My guess is that dense_underdetermined_lsqr.c cannot find MATLABs lapack or blas, yet I dont know how I can resolve this issue. Many thanks.

[Kenton Huff]

Did you ever find the solution to this? I'm having the exact same issue with blendepik.