1 files changed, 84 insertions, 0 deletions
diff --git a/compat/Makefile b/compat/Makefile
new file mode 100644
index 00000000..cd4fc213
--- /dev/null
+++ b/compat/Makefile
@@ -0,0 +1,84 @@
+export KMODDIR?=       updates/
+KMODDIR_ARG:=   "INSTALL_MOD_DIR=$(KMODDIR)"
+ifneq ($(origin $(KLIB)), undefined)
+KMODPATH_ARG:=  "INSTALL_MOD_PATH=$(KLIB)"
+else
+export KLIB:=          /lib/modules/$(shell uname -r)
+endif
+export KLIB_BUILD ?=    $(KLIB)/build
+
+DESTDIR?=
+
+ifeq ($(KERNELRELEASE),)
+export PWD := $(shell pwd)
+export COMPAT_BASE_TREE := "linux-next.git"
+# For this specific tree this is only relevant in
+# terms of the last time we synched code up with upstream
+# for internal stuff. For other compatability projects this
+# would be the git describe of the base tree you are
+# working with.
+export COMPAT_BASE_TREE_VERSION := "next-20100517"
+export COMPAT_VERSION := $(shell git describe)
+
+# This is used to annotate what version of
+# compat.git was used.
+export COMPAT_BASE := $(shell git describe)
+
+# to check config and compat autoconf
+export COMPAT_CONFIG=$(PWD)/.config
+export COMPAT_AUTOCONF=$(PWD)/include/linux/compat_autoconf.h
+export MAKE
+
+else
+# By stuffing this hear we avoid using
+# this hackery on modpost, the 2nd section of module building.
+#
+# This hack lets us put our include path first than the kernel's
+# when building our compat modules. Your own makefile would look
+# the same.
+NOSTDINC_FLAGS := -I$(M)/include/ \
+	-include $(M)/include/linux/compat-2.6.h \
+	$(CFLAGS) \
+	-DCOMPAT_BASE="\"$(COMPAT_BASE)\"" \
+	-DCOMPAT_BASE_TREE="\"$(COMPAT_BASE_TREE)\"" \
+	-DCOMPAT_BASE_TREE_VERSION="\"$(COMPAT_BASE_TREE_VERSION)\"" \
+	-DCOMPAT_PROJECT="\"Generic kernel\"" \
+	-DCOMPAT_VERSION="\"$(COMPAT_VERSION)\""
+
+# Technicallay we can require the inclusion of COMPAT_CONFIG for
+# all targets except clean, so avoid the warnings at clean time.
+-include $(COMPAT_CONFIG)
+endif
+
+obj-y += compat/
+
+all: modules
+
+modules: $(COMPAT_CONFIG) $(COMPAT_AUTOCONF)
+	$(MAKE) -C $(KLIB_BUILD) M=$(PWD) modules
+	@touch modules
+
+install: modules
+	$(MAKE) -C $(KLIB_BUILD) M=$(PWD) $(KMODDIR_ARG) $(KMODPATH_ARG) \
+		modules_install
+	depmod -a
+
+$(COMPAT_AUTOCONF): $(COMPAT_CONFIG)
+	+@$(PWD)/scripts/gen-compat-autoconf.sh $(COMPAT_CONFIG) > $(COMPAT_AUTOCONF)
+
+$(COMPAT_CONFIG):
+	+@$(PWD)/scripts/gen-compat-config.sh > $(COMPAT_CONFIG)
+
+install: modules
+
+install-ckmake:
+	@mkdir -p $(DESTDIR)/usr/bin/
+	@install bin/ckmake $(DESTDIR)/usr/bin/
+
+clean:
+	$(MAKE) -C $(KLIB_BUILD) M=$(PWD) clean
+
+clean-files := Module.symvers modules.order Module.markers compat/modules.order
+clean-files += modules $(COMPAT_CONFIG) $(COMPAT_AUTOCONF)
+
+.PHONY: all install clean modules Makefile