exec() Problem in Eclipse debugging mode

exec-problem.cpp

#include <iostream>
#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>

int main(int pArgc, const char* pArgv[]) {
  pid_t pid = fork(); // vfork() would also be an option

  if (pid < 0) {
    std::cerr << "Error creating child process" << std::endl;
    exit(EXIT_FAILURE);
  } else if (pid == 0) {
    execl("/usr/bin/wc", "/usr/bin/wc", "-l", "/some/none/existent/file.txt", (char*) 0);
    // _exit(1); // Alternative possibility of exiting the process, which does not work in eclipse either
  } else {
    int status;
    waitpid(pid, &status, 0); // waitpid() fixes the problem (see revision 1)

    if (WIFEXITED(status)) {
      int retcode = WEXITSTATUS(status);
      if (retcode != 1) {
        std::cerr << "retcode was not 1 (would indicate failure of word count)" << std::endl;
        exit(EXIT_FAILURE);
      }
    }
  }

  exit(EXIT_SUCCESS);
}