Undefined Reference to 'dlopen'

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I’m trying to upload a file .so, but this title error is showing up. Can anyone help me?

    #include <iostream>
    #include <dlfcn.h>
    #include <stdio.h>

    using namespace std;

    int main()
    {
      void *abrir;
      abrir = dlopen("EZClient.so", RTLD_NOW);

    if(!abrir)
    {
      printf("%s\n", dlerror());
      return -1;
    }
    return 0;
    }
c++ ubuntu gcc

1 answer

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The implementations of the functions dlopen and dlerror are in a library called libdl.so.

So in order for you to Compile this program, using g++, you have to run the following command line

g++ -o programa programa.cpp -ldl

that is, add the library using the option -ldl

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