Let's try this.

class UseBindlessTexturesInitializer {
public:
  UseBindlessTexturesInitializer() : value_(0) {
    // Do more initialization
  }

  bool value() const { return value_; }
private:
  bool value_;
};

bool getUseBindlessTextures() {
  static UseBindlessTexturesInitializer v{};
  return v.value();
}

This isn't the neatest way to do this but quite easy and safe. Take a look at Is local static variable initialization thread-safe in C++11?