mex & Blass library linking error

Mex linking error undefined blass libraries dtrmm and dgemm

Error using mex function blass linking error
Error using mex
/tmp/mex_33768366225260_4769/fmmshift.o: In function `shift_m2m':
fmmshift.c:(.text+0x702): undefined reference to `dtrmm_'
/tmp/mex_33768366225260_4769/fmmshift.o: In function `shift_m2ps':
fmmshift.c:(.text+0xff1): undefined reference to `dgemm_'
/tmp/mex_33768366225260_4769/fmmshift.o: In function `shift_p2p':
fmmshift.c:(.text+0x1e38): undefined reference to `dtrmm_'
collect2: error: ld returned 1 exit status
Error in make (line 83)
  mex(cflags,define{:},include,link, ...

I am tottally blank not able to get how to run it.

I am using matlab r2018b, linux OS is ubuntu 18.04.4 LTS.

function make(varargin)
%MAKE Makefile for FMM2D.
%   MAKE(ARG1,...) compiles FMM2D with the compiler arguments ARG1,
%   ... using the MEX-command. With no arguments, default
%   platform-dependent define arguments are used (the -D switch).

% S. Engblom 2011-04-17 (mexmaci64, 7.11)
% S. Engblom 2011-04-17 (mexmaci64, 7.10)
% S. Engblom 2011-03-07 (mexa64, 7.11)
% S. Engblom 2010-02-02 (mexs64, 7.7)
% S. Engblom 2010-02-02 (mexa64, 7.8)
% S. Engblom 2010-01-13 (mexmaci)
% S. Engblom 2007-09-01 (mexs64)
% S. Engblom 2006-07-10 (mexa64)
% S. Engblom 2005-03-22 (mexmac)

% Public defines:
%
% -use '-DmwIndex=int' for platforms where mex is not automatically
% linked against the library defining the mwIndex type,
%
% -use '-DBLASINT=size_t' for the (bad!) platforms where the 'int' in
% the declaration of BLAS subroutines is in fact a 'size_t' and
% sizeof(size_t) > sizeof(int),
%
% -use '-DPRINTTIME' to print precise timings of the FMM-algorithm,
%
% For experimental use:
%
% '-DFMM_INLINECOMPLEX' (recommended) avoids complex arithmetic in various
% places in the FMM-algorithm and uses inline versions instead,
%
% '-DFMM_INLINECOMPLEX_DIRECT' (recommended) uses "Quick-and-dirty" versions
% of direct evaluations. On some platforms, it is faster by a factor of up
% to 8 not to rely on certain math-functions and/or complex arithmetics, but
% to write the complex arithmetic inline,
%
% '-DFMM_SHRINK' (recommended) sets Postsplit shrinking of boxes on/off,
%
% '-DFMM_THETA=<value>' (default 0.5) sets the constant of
% well-separatedness in the theta-criterion,
%
% '-DFMM_MESHRATIO=<value>' (default 2.0) tunes the criterion for
% splitting long edges in the mesh.
%
% Make some effort in finding good optimization flags!

mx = mexext;
ver = version;

% possible defines
define = {'-DmwIndex=int' ...              % (1)
          '-DBLASINT=size_t' ...           % (2)
          '-DPRINTTIME' ...                % (3)
          '-DFMM_INLINECOMPLEX' ...        % (4)
          '-DFMM_INLINECOMPLEX_DIRECT' ... % (5) 
          '-DFMM_SHRINK'};                 % (6)
% (edit defaults below)

% path, include and link path, source
s = pwd;
include = ['-I' s '/source'];
link = ['-L' s '/source'];
source = {[s '/source/fmm2d.c'] ...
          [s '/source/fmm.c'] ...
          [s '/source/fmmshift.c'] ...
          [s '/source/direct.c'] ...
          [s '/source/expint.c']};

if strcmp(mx,'mexa64')
  if ~strncmp(version,'7.8',3) && ~strncmp(version,'7.11',4)
    warning(['Extension .' mexext ...
             ' tested with Matlab version(s) 7.8 and 7.11 only.']);
  end
  cflags = ['CFLAGS=-fPIC -fno-omit-frame-pointer -std=c99 -O3 ' ...
            '-D_GNU_SOURCE -pthread -fexceptions'];
  link = [link ' -lmwblas'];
  if strncmp(version,'7.11',4)
    link = [link ' -L' matlabroot '/sys/os/glnxa64'];
  end
  define = define([2 4:6]);
  if nargin > 0, define = varargin; end
  mex(cflags,define{:},include,link, ...
      '-largeArrayDims','-outdir',s, ...
      source{:});
elseif strcmp(mx,'mexmaci')
  if ~strncmp(version,'7.8',3)
    warning(['Extension .' mexext ...
             ' tested with Matlab version(s) 7.8 only.']);
  end
  cflags = 'CC=gcc -std=c99 -fast';
  link = [link ' -lmwblas'];
  define = define([4:6]);
  if nargin > 0, define = varargin; end
  mex(cflags,define{:},include,link, ...
      '-outdir',s, ...
      source{:});
elseif strcmp(mx,'mexmaci64')
  if ~strncmp(version,'7.10',4) && ~strncmp(version,'7.11',4)
    warning(['Extension .' mexext ...
             ' tested with Matlab version(s) 7.10 and 7.11 only.']);
  end
  cflags = 'CC=gcc -std=c99 -fast';
  link = [link ' -lmwblas'];
  define = define([2 4:6]);
  if nargin > 0, define = varargin; end
  mex(cflags,define{:},include,link, ...
      '-largeArrayDims','-outdir',s, ...
      source{:});
elseif strcmp(mx,'mexmac')
  warning('Platform never tried.');
  cflags = 'CC=gcc -std=c99';
  define = define(4:6);
  if nargin > 0, define = varargin; end
  mex(cflags,define{:},include,link, ...
      '-outdir',s, ...
      source{:});
elseif strcmp(mx,'mexw32')
  warning('Platform never tried.');
  cflags = ['COMPFLAGS=-c -DMATLAB_MEX_FILE -fno-omit-frame-pointer -std=c99' ...
            '-D_GNU_SOURCE -fexceptions'];
  include(include == '/') = '\';
  link(link == '/') = '\';
  for i = 1:numel(source)
    source{i}(source{i} == '/') = '\';
  end
  define = define(4:6);
  if nargin > 0, define = varargin; end
  mex(cflags,define{:},include,link, ...
      '-outdir',s, ...
      source{:},[matlabroot '\extern\lib\win32\microsoft\libmwblas.lib']); 
elseif strcmp(mx,'mexglx')
  warning('Platform never tried.');
  cflags = ['CFLAGS=-fPIC -fno-omit-frame-pointer -std=c99 ' ...
            '-D_GNU_SOURCE -pthread -fexceptions'];
  link = [link ' -lmwblas'];
  define = define(4:6);
  if nargin > 0, define = varargin; end
  mex(cflags,define{:},include,link, ...
      '-outdir',s, ...
      source{:});
elseif strcmp(mx,'mexs64')
  if ~strncmp(version,'7.7',3)
    warning(['Extension .' mexext ...
             ' tested with Matlab version(s) 7.7 only.']);
  end
  cflags = 'CFLAGS=-xc99 -xcode=pic32';
  define = define(4:6);
  if nargin > 0, define = varargin; end
  mex(cflags,define{:},include,link,'-largeArrayDims', ...
      '-outdir',s, ...
      source{:});
else
  warning('New platform. Trying default make.');
  define = define(4:6);
  if nargin > 0, define = varargin; end
  mex(define{:},include,link, ...
      '-outdir',s, ...
      source{:});
end