compat: fix building for 3.0 kernels

Changes integrated from compat-wireless

Signed-off-by: Luis R. Rodriguez <mcgrof@frijolero.org>

diff --git a/Makefile b/Makefile
index 9ff4611ca8bfae11bd67747b3681dae2bbeb8aa1..8b6484aed8bd2ad18dbdd9e9626b75005cb3a9d5 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -23,10 +23,23 @@ endif
 # This generates a bunch of CONFIG_COMPAT_KERNEL_22 CONFIG_COMPAT_KERNEL_23 .. etc for
 # each kernel release you need an object for.
 ifneq ($(wildcard $(KLIB_BUILD)/Makefile),)
-COMPAT_LATEST_VERSION = 33
-KERNEL_SUBLEVEL := $(shell $(MAKE) -C $(KLIB_BUILD) kernelversion | sed -n 's/^2\.6\.\([0-9]\+\).*/\1/p')
+
+COMPAT_LATEST_VERSION = 3
+KERNEL_VERSION := $(shell $(MAKE) -C $(KLIB_BUILD) kernelversion | sed -n 's/^\([0-9]\)\..*/\1/p')
+
+ifneq ($(KERNEL_VERSION),2)
+KERNEL_SUBLEVEL := $(shell $(MAKE) -C $(KLIB_BUILD) kernelversion | sed -n 's/^3\.\([0-9]\+\).*/\1/p')
+else
+COMPAT_26LATEST_VERSION = 39
+KERNEL_26SUBLEVEL := $(shell $(MAKE) -C $(KLIB_BUILD) kernelversion | sed -n 's/^2\.6\.\([0-9]\+\).*/\1/p')
+COMPAT_26VERSIONS := $(shell I=$(COMPAT_26LATEST_VERSION); while [ "$$I" -gt $(KERNEL_26SUBLEVEL) ]; do echo $$I; I=$$(($$I - 1)); done)
+$(foreach ver,$(COMPAT_26VERSIONS),$(eval CONFIG_COMPAT_KERNEL_2_6_$(ver)=y))
+KERNEL_SUBLEVEL := -1
+endif
+
 COMPAT_VERSIONS := $(shell I=$(COMPAT_LATEST_VERSION); while [ "$$I" -gt $(KERNEL_SUBLEVEL) ]; do echo $$I; I=$$(($$I - 1)); done)
-$(foreach ver,$(COMPAT_VERSIONS),$(eval export CONFIG_COMPAT_KERNEL_$(ver)=y))
+$(foreach ver,$(COMPAT_VERSIONS),$(eval CONFIG_COMPAT_KERNEL_3_$(ver)=y))
+
 endif
 
 ifeq ($(CONFIG_COMPAT_KERNEL_33),y)