compile.m on mac

[malreddysid]

Hi

I'm trying to compile the code on MacOS and I'm running into the following error.

Undefined symbols for architecture x86_64: "cv::SparseMatConstIterator::SparseMatConstIterator(cv::SparseMat const*)", referenced from: MxArray::MxArray(cv::SparseMat const&) in MxArray.o "cv::SparseMatConstIterator::operator++()", referenced from: MxArray::MxArray(cv::SparseMat const&) in MxArray.o "cv::Mat::deallocate()", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o _mexFunction in calcIIF.o cv::MatExpr::~MatExpr() in calcIIF.o std::__1::__vector_base<cv::Mat, std::__1::allocator<cv::Mat> >::~__vector_base() in calcIIF.o MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o MxArray::toMat(int, bool) const in MxArray.o MxArray::toMatND(int, bool) const in MxArray.o ... "cv::Mat::setTo(cv::_InputArray const&, cv::_InputArray const&)", referenced from: MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o "cv::Mat::zeros(cv::Size_<int>, int)", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::Mat::create(int, int const*, int)", referenced from: MxArray::toMat(int, bool) const in MxArray.o "cv::Mat::copySize(cv::Mat const&)", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o MxArray::toMat(int, bool) const in MxArray.o MxArray::toMatND(int, bool) const in MxArray.o std::__1::vector<cv::Mat, std::__1::allocator<cv::Mat> > MxArray::toVector<cv::Mat>() const in MxArray.o std::__1::vector<cv::Mat, std::__1::allocator<cv::Mat> >::__swap_out_circular_buffer(std::__1::__split_buffer<cv::Mat, std::__1::allocator<cv::Mat>&>&) in MxArray.o void std::__1::vector<cv::Mat, std::__1::allocator<cv::Mat> >::__push_back_slow_path<cv::Mat>(cv::Mat&&) in MxArray.o ... "cv::Mat::Mat(int, int const*, int, void*, unsigned long const*)", referenced from: MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o MxArray::toMat(int, bool) const in MxArray.o MxArray::toMatND(int, bool) const in MxArray.o "cv::add(cv::_InputArray const&, cv::_InputArray const&, cv::_OutputArray const&, cv::_InputArray const&, int)", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::blur(cv::_InputArray const&, cv::_OutputArray const&, cv::Size_<int>, cv::Point_<int>, int)", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::error(int, cv::String const&, char const*, char const*, int)", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::merge(cv::_InputArray const&, cv::_OutputArray const&)", referenced from: MxArray::toMat(int, bool) const in MxArray.o "cv::split(cv::_InputArray const&, cv::_OutputArray const&)", referenced from: MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o "cv::String::deallocate()", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::String::allocate(unsigned long)", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::Moments::Moments(double, double, double, double, double, double, double, double, double, double)", referenced from: MxArray::toMoments(unsigned long) const in MxArray.o "cv::compare(cv::_InputArray const&, cv::_InputArray const&, cv::_OutputArray const&, int)", referenced from: MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o "cv::inRange(cv::_InputArray const&, cv::_InputArray const&, cv::_InputArray const&, cv::_OutputArray const&)", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::noArray()", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::fastFree(void*)", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o _mexFunction in calcIIF.o cv::MatExpr::~MatExpr() in calcIIF.o std::__1::__vector_base<cv::Mat, std::__1::allocator<cv::Mat> >::~__vector_base() in calcIIF.o MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o MxArray::toMat(int, bool) const in MxArray.o MxArray::toMatND(int, bool) const in MxArray.o ... "cv::SparseMat::ptr(int, int, bool, unsigned long*)", referenced from: MxArray::toSparseMat() const in MxArray.o "cv::SparseMat::create(int, int const*, int)", referenced from: MxArray::toSparseMat() const in MxArray.o "cv::_InputArray::kind() const", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::_InputArray::getMat_(int) const", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::Mat::t() const", referenced from: MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o MxArray::toMat(int, bool) const in MxArray.o MxArray::toMatND(int, bool) const in MxArray.o "cv::Mat::mul(cv::_InputArray const&, double) const", referenced from: doWork(cv::_InputArray const&, cv::Size_<int>, int) in calcIIF.o "cv::Mat::convertTo(cv::_OutputArray const&, int, double, double) const", referenced from: MxArray::MxArray(cv::Mat const&, mxClassID, bool) in MxArray.o MxArray::toMat(int, bool) const in MxArray.o MxArray::toMatND(int, bool) const in MxArray.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation)

Could you please help me with this.

[toddlt]

First you should install opencv by homebrew brew install opencv
it is installed in /usr/local/Cellar/opencv/
then comile the MxArray.cpp, you need to add the compile flag like this:

mex -I'/usr/local/Cellar/opencv/2.4.13_3/include' -I'/usr/local/Cellar/opencv/2.4.13_3/include/opencv' -L'/usr/local/Cellar/opencv/2.4.13_3/lib' -c MxArray.cpp

the output is MxArray.o, you will need it when you compile calcIIF.cpp:

mex -I'/usr/local/Cellar/opencv/2.4.13_3/include' -I'/usr/local/Cellar/opencv/2.4.13_3/include/opencv' -L'/usr/local/Cellar/opencv/2.4.13_3/lib' -lopencv_core -lopencv_imgproc calcIIF.cpp MxArray.o

Other c/c++ file can be compiled just use mex xxx.c or mex xxx.cpp