liblzma: Port to VS 6, 7.0

Also remove use of MSVC intrinsic.

Utilities/cmliblzma/common/sysdefs.h

@@ -16,6 +16,10 @@
 #ifndef LZMA_SYSDEFS_H
 #define LZMA_SYSDEFS_H
 
+#if defined(_MSC_VER)
+#  pragma warning(disable: 4028 4244 4761)
+#endif
+
 //////////////
 // Includes //
 //////////////
@@ -46,6 +50,12 @@
 #	include <limits.h>
 #endif
 
+
+#if defined(_MSC_VER) && (_MSC_VER < 1310)
+#  define UINT64_C(n) n ## ui64
+#endif
+
+
 // Be more compatible with systems that have non-conforming inttypes.h.
 // We assume that int is 32-bit and that long is either 32-bit or 64-bit.
 // Full Autoconf test could be more correct, but this should work well enough.

Utilities/cmliblzma/common/tuklib_integer.h

@@ -387,13 +387,6 @@ bsr32(uint32_t n)
 	__asm__("bsrl %1, %0" : "=r" (i) : "rm" (n));
 	return i;
 
-#elif defined(_MSC_VER) && _MSC_VER >= 1400
-	// MSVC isn't supported by tuklib, but since this code exists,
-	// it doesn't hurt to have it here anyway.
-	uint32_t i;
-	_BitScanReverse((DWORD *)&i, n);
-	return i;
-
 #else
 	uint32_t i = 31;
 
@@ -441,11 +434,6 @@ clz32(uint32_t n)
 		: "=r" (i) : "rm" (n));
 	return i;
 
-#elif defined(_MSC_VER) && _MSC_VER >= 1400
-	uint32_t i;
-	_BitScanReverse((DWORD *)&i, n);
-	return i ^ 31U;
-
 #else
 	uint32_t i = 0;
 
@@ -491,11 +479,6 @@ ctz32(uint32_t n)
 	__asm__("bsfl %1, %0" : "=r" (i) : "rm" (n));
 	return i;
 
-#elif defined(_MSC_VER) && _MSC_VER >= 1400
-	uint32_t i;
-	_BitScanForward((DWORD *)&i, n);
-	return i;
-
 #else
 	uint32_t i = 0;