# determines TARGET_CPU, if not forced by user
  if [ -z "$TARGET_CPU" ]; then
    TARGET_CPU=core2
  fi

# determine architecture's family
  TARGET_SUBARCH=x86_64

  TARGET_GCC_ARCH=$(echo $TARGET_SUBARCH | sed -e "s,-,,")
  TARGET_KERNEL_ARCH=x86

# setup ARCH specific *FLAGS
  TARGET_CFLAGS="-march=$TARGET_CPU -m64"
  TARGET_LDFLAGS="-march=$TARGET_CPU -m64"

# build with SIMD support ( yes / no )
  SIMD_SUPPORT="yes"