static void exec_fusermount(const char *argv[])
{
    execv(FUSERMOUNT_DIR "/" FUSERMOUNT_PROG, (char **) argv);
    execvp(FUSERMOUNT_PROG, (char **) argv);
}
static void exec_fusermount(const char *argv[])
{
    execv(FUSERMOUNT_DIR "/" FUSERMOUNT_PROG, (char **) argv);
    execvp(FUSERMOUNT_PROG, (char **) argv);
}