error while running 'compile_mathconvnet'

Hi,
I'm getting this error while running compile_mathconvnet script in windows 7, using matlab r2016b with mingw as mex compiler:
>> compile_matconvnet
Starting parallel pool (parpool) using the 'local' profile ... connected to 2 workers.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
In file included from X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cpp:4:0:
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu: In member function 'vl::Error vl::MexTensor::init(vl::Device, const vl::TensorGeometry&)':
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu:177:43: warning: narrowing conversion of '(& geom)->vl::TensorGeometry::getHeight()' from 'vl::index_t {aka int}' to 'mwSize {aka long long unsigned int}' inside { } [-Wnarrowing]
   mwSize dimensions [4] = {geom.getHeight(),
                                           ^
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu:178:42: warning: narrowing conversion of '(& geom)->vl::TensorGeometry::getWidth()' from 'vl::index_t {aka int}' to 'mwSize {aka long long unsigned int}' inside { } [-Wnarrowing]
                            geom.getWidth(),
                                          ^
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu:179:42: warning: narrowing conversion of '(& geom)->vl::TensorGeometry::getDepth()' from 'vl::index_t {aka int}' to 'mwSize {aka long long unsigned int}' inside { } [-Wnarrowing]
                            geom.getDepth(),
                                          ^
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu:180:41: warning: narrowing conversion of '(& geom)->vl::TensorGeometry::getSize()' from 'vl::index_t {aka int}' to 'mwSize {aka long long unsigned int}' inside { } [-Wnarrowing]
                            geom.getSize()} ;
                                         ^
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu: In member function 'vl::Error vl::MexTensor::initWithZeros(vl::Device, const vl::TensorGeometry&)':
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu:233:43: warning: narrowing conversion of '(& geom)->vl::TensorGeometry::getHeight()' from 'vl::index_t {aka int}' to 'mwSize {aka long long unsigned int}' inside { } [-Wnarrowing]
   mwSize dimensions [4] = {geom.getHeight(),
                                           ^
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu:234:42: warning: narrowing conversion of '(& geom)->vl::TensorGeometry::getWidth()' from 'vl::index_t {aka int}' to 'mwSize {aka long long unsigned int}' inside { } [-Wnarrowing]
                            geom.getWidth(),
                                          ^
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu:235:42: warning: narrowing conversion of '(& geom)->vl::TensorGeometry::getDepth()' from 'vl::index_t {aka int}' to 'mwSize {aka long long unsigned int}' inside { } [-Wnarrowing]
                            geom.getDepth(),
                                          ^
X:\github\MDNet\matconvnet\matlab\src\bits\datamex.cu:236:41: warning: narrowing conversion of '(& geom)->vl::TensorGeometry::getSize()' from 'vl::index_t {aka int}' to 'mwSize {aka long long unsigned int}' inside { } [-Wnarrowing]
                            geom.getSize()} ;
                                         ^

MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
MEX completed successfully.
Building with 'MinGW64 Compiler (C++)'.
Error using vl_compilenn>mex_compile (line 411)
X:\github\MDNet\matconvnet\matlab\src\bits\impl\imread_gdiplus.cpp: In member function 'vl::Image
vl::ImageReader::Impl::read(const char*, float*)':
X:\github\MDNet\matconvnet\matlab\src\bits\impl\imread_gdiplus.cpp:91:83: error: 'mbstowcs_s' was not
declared in this scope
   mbstowcs_s(&n, filenamew, sizeof(filenamew)/sizeof(wchar_t), filename, _TRUNCATE);
                                                                                   ^
X:\github\MDNet\matconvnet\matlab\src\bits\impl\imread_gdiplus.cpp: In member function 'vl::Image
vl::ImageReader::Impl::readDimensions(const char*)':
X:\github\MDNet\matconvnet\matlab\src\bits\impl\imread_gdiplus.cpp:149:83: error: 'mbstowcs_s' was
not declared in this scope
   mbstowcs_s(&n, filenamew, sizeof(filenamew)/sizeof(wchar_t), filename, _TRUNCATE);
                                                                                   ^

Error in vl_compilenn (line 371)
parfor i = 1:numel(horzcat(lib_src, mex_src))

Error in compile_matconvnet (line 13)
vl_compilenn;
hyseob / MDNet

error while running 'compile_mathconvnet' #4
