+#define DEFAULT_ICONS_DIR L"icons"
+
+// OS bit codes; used in GlobalConfig.GraphicsOn
+#define GRAPHICS_FOR_OSX 1
+#define GRAPHICS_FOR_LINUX 2
+#define GRAPHICS_FOR_ELILO 4
+#define GRAPHICS_FOR_GRUB 8
+#define GRAPHICS_FOR_WINDOWS 16
+
+// Type of legacy (BIOS) boot support detected
+#define LEGACY_TYPE_NONE 0
+#define LEGACY_TYPE_MAC 1
+#define LEGACY_TYPE_UEFI 2
+
+#ifdef __MAKEWITH_GNUEFI
+//
+// define BBS Device Types
+//
+#define BBS_FLOPPY 0x01
+#define BBS_HARDDISK 0x02
+#define BBS_CDROM 0x03
+#define BBS_PCMCIA 0x04
+#define BBS_USB 0x05
+#define BBS_EMBED_NETWORK 0x06
+#define BBS_BEV_DEVICE 0x80
+#define BBS_UNKNOWN 0xff
+#endif
+
+// BIOS Boot Specification (BBS) device types, as returned in DevicePath->Type field
+#define DEVICE_TYPE_HW 0x01
+#define DEVICE_TYPE_ACPI 0x02 /* returned by UEFI boot loader on USB */
+#define DEVICE_TYPE_MESSAGING 0x03
+#define DEVICE_TYPE_MEDIA 0x04 /* returned by EFI boot loaders on hard disk */
+#define DEVICE_TYPE_BIOS 0x05 /* returned by legacy (BIOS) boot loaders */
+#define DEVICE_TYPE_END 0x75 /* end of path */
+
+// Filesystem type identifiers. Not all are yet used....
+#define FS_TYPE_UNKNOWN 0
+#define FS_TYPE_FAT 1
+#define FS_TYPE_EXT2 2
+#define FS_TYPE_EXT3 3
+#define FS_TYPE_EXT4 4
+#define FS_TYPE_HFSPLUS 5
+#define FS_TYPE_REISERFS 6
+#define FS_TYPE_ISO9660 7