function dyn_mex(win_compiler,basename,force)

% Compile Dynare model dlls when model option use_dll is used
% if C file is fresher than mex file 
%
% INPUTS
%  o win_compiler  str  compiler used under Windows (unused under Linux or OSX): 
%                       'msvc' (MS Visual C)
%                        'cygwin'
%  o basename      str  filenames base
%  o force         bool recompile if 1 
%  
% OUTPUTS 
%  none
%

    
% Copyright (C) 2015 Dynare Team
%
% This file is part of Dynare.
%
% Dynare is free software: you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% Dynare is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with Dynare.  If not, see <http://www.gnu.org/licenses/>.

Dc = dir([basename '_dynamic.c']);
Dmex = dir([basename '_dynamic.' mexext]);

% compile only if date of C file is greater than date of mex file
% and force is not True
if ~isempty(Dmex)
    if (Dmex.datenum > Dc.datenum) && ~force
        disp('Mex files are newer than the source: not recompiled')
        return
    end
end

if ~exist('OCTAVE_VERSION')
    % Some mex commands are enclosed in an eval(), because otherwise it will make Octave fail
    if ispc
      if strcmp(win_compiler,'msvc')
          % MATLAB/Windows + Microsoft Visual C++
          eval(['mex -O LINKFLAGS="$LINKFLAGS /export:Dynamic" ' basename '_dynamic.c ' basename '_dynamic_mex.c'])
          eval(['mex -O LINKFLAGS="$LINKFLAGS /export:Static" ' basename '_static.c ' basename '_static_mex.c'])
      elseif strcmp(win_compiler,'cygwin')
          % MATLAB/Windows + Cygwin g++
          eval(['mex -O PRELINK_CMDS1="echo EXPORTS > mex.def & echo ' ...
                'mexFunction >> mex.def & echo Dynamic >> mex.def" ' ...
                basename '_dynamic.c ' basename '_dynamic_mex.c'])
          eval(['mex -O PRELINK_CMDS1="echo EXPORTS > mex.def & echo ' ...
                'mexFunction >> mex.def & echo Dynamic >> mex.def" ' ...
                basename '_static.c ' basename '_static_mex.c'])
      else
        error(['When using the USE_DLL option, you must give either ' ...
               '''cygwin'' or ''msvc'' option to the ''dynare'' command'])
      end
    elseif isunix
        % MATLAB/Linux
        if matlab_ver_less_than('8.3')
            eval(['mex -O LDFLAGS=''-pthread -shared -Wl,--no-undefined'' ' ...
                  basename '_dynamic.c ' basename '_dynamic_mex.c'])
            eval(['mex -O LDFLAGS=''-pthread -shared -Wl,--no-undefined'' ' ...
                  basename '_static.c ' basename '_static_mex.c'])
        else
            eval(['mex -O LINKEXPORT='''' ' basename '_dynamic.c ' basename '_dynamic_mex.c'])
            eval(['mex -O LINKEXPORT='''' ' basename '_static.c ' basename '_static_mex.c'])
        end
    elseif ismac
        % MATLAB/MacOS
        if matlab_ver_less_than('8.3')
            if matlab_ver_less_than('8.1')
                eval(['mex -O LDFLAGS=''-Wl,-twolevel_namespace -undefined ' ...
                      'error -arch $ARCHS -Wl,-syslibroot,$SDKROOT ' ...
                      '-mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET -bundle'' ' ...
                      basename '_dynamic.c ' basename '_dynamic_mex.c'])
                eval(['mex -O LDFLAGS=''-Wl,-twolevel_namespace -undefined ' ...
                      'error -arch $ARCHS -Wl,-syslibroot,$SDKROOT ' ...
                      '-mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET -bundle'' ' ...
                      basename '_static.c ' basename '_static_mex.c'])
            else
                eval(['mex -O LDFLAGS=''-Wl,-twolevel_namespace -undefined ' ...
                      'error -arch $ARCHS -Wl,-syslibroot,$MW_SDKROOT ' ...
                      '-mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET -bundle'' ' ...
                      basename '_dynamic.c ' basename '_dynamic_mex.c'])
                eval(['mex -O LDFLAGS=''-Wl,-twolevel_namespace -undefined ' ...
                      'error -arch $ARCHS -Wl,-syslibroot,$MW_SDKROOT ' ...
                      '-mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET -bundle'' ' ...
                      basename '_static.c ' basename '_static_mex.c'])
            end
        else
            eval(['mex -O LINKEXPORT='''' ' basename '_dynamic.c ' ...
                  basename '_dynamic_mex.c'])
            eval(['mex -O LINKEXPORT='''' ' basename '_static.c ' basename ...
                  '_static_mex.c'])
        end
    end
else
    % Octave
    eval(['mex ' basename '_dynamic.c ' basename '_dynamic_mex.c'])
    eval(['mex ' basename '_static.c ' basename '_static_mex.c'])
end