--- hatari/src/includes/st.h	2019/04/01 07:11:32	1.1.1.2
+++ hatari/src/includes/st.h	2019/04/01 07:14:49	1.1.1.4
@@ -5,6 +5,6 @@
   your option any later version. Read the file gpl.txt for details.
 */
 
-extern BOOL ST_FileNameIsST(char *pszFileName, BOOL bAllowGZ);
-extern Uint8 *ST_ReadDisc(char *pszFileName, long *pImageSize);
-extern BOOL ST_WriteDisc(char *pszFileName, Uint8 *pBuffer, int ImageSize);
+extern bool ST_FileNameIsST(char *pszFileName, bool bAllowGZ);
+extern Uint8 *ST_ReadDisk(char *pszFileName, long *pImageSize);
+extern bool ST_WriteDisk(char *pszFileName, Uint8 *pBuffer, int ImageSize);