I am compiling a C++ code on mac using swig and making a shared .so library.
I have found a similar question here but I get an error for the last line:
ls
sl.i sl.hpp
swig -c++ -python sl.i
clang -O2 -fPIC -c sl_wrap.cxx -I /Library/Frameworks/Python.framework/Versions/3.8/include/python3.8
clang -lpython -dynamiclib sl_wrap.o -o _sl.so
ls
sl.py sl_wrap.o sl.wrap.cxx sl.i sl.hpp
error:
ld: library not found for -lpython
clang-15: error: linker command failed with exit code 1 (use -v to see invocation)
My machine:
ProductName: macOS
ProductVersion: 13.0
Homebrew clang version 15.0.2
Target: x86_64-apple-darwin22.1.0
Thread model: posix
InstalledDir: /usr/local/opt/llvm/bin
SWIG Version 4.0.2
Compiled with clang++ [x86_64-apple-darwin21.1.0]
Configured options: +pcre
A toy example:
sl.hpp:
#include <cmath>
#include <string>
#include <iostream>
class My_Class
{
private:
int N;
public:
int add(int a, int b)
{
return (a+b);
}
};
sl.i:
%module sl
%{
#include "sl.hpp"
%}
%include stl.i
%include "std_string.i"
/* instantiate the required template specializations */
namespace std {
%template(IntVector) vector<int>;
%template(DoubleVector) vector<double>;
%template(DoubleVector2) vector<vector<double> >;
%template(SingleVector) vector<float>;
%template(SingleVector2) vector<vector<float> >;
}
%include "sl.hpp"
