# os = (name) --- --- Target operating system
# bits = 64/32 --- -DIS_64BIT --- 64-/32-bit operating system
# bigendian = no/yes --- -DBIGENDIAN --- big/little-endian byte order
-# prefetch = no/yes --- -DPREFETCH --- Use prefetch x86 asm-instruction
+# prefetch = no/yes --- -DUSE_PREFETCH --- Use prefetch x86 asm-instruction
# bsfq = no/yes --- -DUSE_BSFQ --- Use bsfq x86_64 asm-instruction
# --- (Works only with GCC and ICC 64-bit)
# popcnt = no/yes --- -DUSE_POPCNT --- Use popcnt x86_64 asm-instruction