diff --git a/src/basictypes.h b/src/basictypes.h
index 3da363dd7..ac267f558 100644
--- a/src/basictypes.h
+++ b/src/basictypes.h
@@ -8,7 +8,6 @@ typedef uint8_t					BYTE;
 typedef int16_t					SWORD;
 typedef uint16_t				WORD;
 typedef uint32_t				uint32;
-typedef int64_t					SQWORD;
 typedef uint64_t				QWORD;
 
 // windef.h, included by windows.h, has its own incompatible definition
@@ -23,15 +22,6 @@ typedef uint32					DWORD;
 typedef uint32					BITFIELD;
 typedef int						INTBOOL;
 
-// a 64-bit constant
-#ifdef __GNUC__
-#define CONST64(v) (v##LL)
-#define UCONST64(v) (v##ULL)
-#else
-#define CONST64(v) ((SQWORD)(v))
-#define UCONST64(v) ((QWORD)(v))
-#endif
-
 #if !defined(GUID_DEFINED)
 #define GUID_DEFINED
 typedef struct _GUID