# Use the default kernel version if the Makefile doesn't override it

ifeq ($(KERNEL),2.4)
  LINUX_VERSION?=2.4.37.9
endif
LINUX_RELEASE?=1

ifeq ($(LINUX_VERSION),2.4.37.9)
  LINUX_KERNEL_MD5SUM:=b85b8962840c13f17f944e7b1890f8f8
endif
ifeq ($(LINUX_VERSION),2.6.25.20)
  LINUX_KERNEL_MD5SUM:=0da698edccf03e2235abc2830a495114
endif
ifeq ($(LINUX_VERSION),2.6.30.10)
  LINUX_KERNEL_MD5SUM:=eb6be465f914275967a5602cb33662f5
endif
ifeq ($(LINUX_VERSION),2.6.31.12)
  LINUX_KERNEL_MD5SUM:=517be354b81b780e2f4b2ad614d030de
endif
ifeq ($(LINUX_VERSION),2.6.32.27)
  LINUX_KERNEL_MD5SUM:=c8df8bed01a3b7e4ce13563e74181d71
endif
ifeq ($(LINUX_VERSION),2.6.33)
  LINUX_KERNEL_MD5SUM:=c3883760b18d50e8d78819c54d579b00
endif
ifeq ($(LINUX_VERSION),2.6.33.1)
  LINUX_KERNEL_MD5SUM:=73b514ec918b88a45656be191b1ee226
endif

# disable the md5sum check for unknown kernel versions
LINUX_KERNEL_MD5SUM?=x

split_version=$(subst ., ,$(1))
merge_version=$(subst $(space),.,$(1))
KERNEL_BASE=$(firstword $(subst -, ,$(LINUX_VERSION)))
KERNEL=$(call merge_version,$(wordlist 1,2,$(call split_version,$(KERNEL_BASE))))
KERNEL_PATCHVER=$(call merge_version,$(wordlist 1,3,$(call split_version,$(KERNEL_BASE))))