Compilation error

int RomInSet (const struct GameDriver *gamedrv, const char* hash)
{
        const struct RomModule *region, *rom;
        region = rom_first_region(gamedrv);   //__RC à supprimer
        for (region = rom_first_region(gamedrv); region; region = rom_next_region(region))
                for (rom = rom_first_file(region); rom; rom = rom_next_file(rom))
                        /* Compare all the available checksums */
                        if (hash_data_is_equal(ROM_GETHASHDATA(rom), hash, 0))
                                return 1;

        return 0;
}

HardPinMameSrc\audit.c(85): error:  #167: argument of type "const struct GameDriver *" is incompatible with parameter of type "const struct GameDriver *"
HardPinMameSrc\audit.c:         region = rom_first_region(gamedrv);   //__RC à supprimer
HardPinMameSrc\audit.c:                                   ^
HardPinMameSrc\audit.c(86): error:  #167: argument of type "const struct GameDriver *" is incompatible with parameter of type "const struct GameDriver *"
HardPinMameSrc\audit.c:         for (region = rom_first_region(gamedrv); region; region = rom_next_region(region))