--- hatari/src/includes/utils.h	2019/04/01 07:14:50	1.1.1.1
+++ hatari/src/includes/utils.h	2019/04/09 08:47:18	1.1.1.2
@@ -12,8 +12,8 @@
 
 #define CRC32_POLY      0x04c11db7      /* IEEE 802.3 recommandation */
 
-void    crc32_reset ( Uint32 *crc );
-void    crc32_add_byte ( Uint32 *crc , Uint8 c );
+extern void    crc32_reset ( Uint32 *crc );
+extern void    crc32_add_byte ( Uint32 *crc , Uint8 c );
 
 
 #endif		/* HATARI_UTILS_H */