Silence warnings

Author: LibretroAdmin

libretro-common/formats/libchdr/libchdr_chd.c

@@ -1632,7 +1632,7 @@ static uint32_t header_guess_unitbytes(chd_file *chd)
 {
 	/* look for hard disk metadata; if found, then the unit size == sector size */
 	char metadata[512];
-	int i0, i1, i2, i3;
+	unsigned int i0, i1, i2, i3;
 	if (chd_get_metadata(chd, HARD_DISK_METADATA_TAG, 0, metadata, sizeof(metadata), NULL, NULL, NULL) == CHDERR_NONE &&
 		sscanf(metadata, HARD_DISK_METADATA_FORMAT, &i0, &i1, &i2, &i3) == 4)
 		return i3;

libretro-common/include/libchdr/chd.h

@@ -227,7 +227,7 @@ extern "C" {
 
 /* standard hard disk metadata */
 #define HARD_DISK_METADATA_TAG		CHD_MAKE_TAG('G','D','D','D')
-#define HARD_DISK_METADATA_FORMAT	"CYLS:%d,HEADS:%d,SECS:%d,BPS:%d"
+#define HARD_DISK_METADATA_FORMAT	"CYLS:%u,HEADS:%u,SECS:%u,BPS:%u"
 
 /* hard disk identify information */
 #define HARD_DISK_IDENT_METADATA_TAG CHD_MAKE_TAG('I','D','N','T')