bug fix for qir-qrt initialize when qcor and xacc are installed in separate locations

#include "xacc.hpp"

#include "xacc_internal_compiler.hpp"

#include "xacc_service.hpp"

#include "qcor_config.hpp"

#include "xacc_config.hpp"

Result ResultZero = 0;

Result ResultOne = 1;

    if (verbose) printf("[qir-qrt] Initializing FTQC runtime...\n");

    // qcor::set_verbose(true);

    xacc::internal_compiler::__qrt_env = "ftqc";

    // if XACC_INSTALL_DIR != XACC_ROOT

    // then we need to pass --xacc-root-path XACC_ROOT

    //

    // Example - we are on Rigetti QCS and can't install via sudo

    // so we dpkg -x xacc to a user directory, but deb package

    // expects to be extracted to /usr/local/xacc, and xacc_config.hpp

    // points to that /usr/local/xacc. Therefore ServiceRegistry fails

    // to load plugins and libs, unless we change rootPath.

    std::string xacc_config_install_dir = std::string(XACC_INSTALL_DIR);

    std::string qcor_config_xacc_root = std::string(XACC_ROOT);

    if (xacc_config_install_dir != qcor_config_xacc_root) {

      std::vector<std::string> cmd_line{"--xacc-root-path",

                                      qcor_config_xacc_root};

      xacc::Initialize(cmd_line);

    } else {

      xacc::Initialize();

    }

    if (verbose)

      std::cout << "[qir-qrt] Running on " << qpu_name << " backend.\n";

    std::shared_ptr<xacc::Accelerator> qpu;