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if (NOT DEFINED KDIR)
set(KDIR "/usr/src/linux")
endif (NOT DEFINED KDIR)
# Try to figure out the kernel release once so we can show it before building.
execute_process(
COMMAND make -s -C ${KDIR} kernelrelease
RESULT_VARIABLE IPOE_KERNEL_RELEASE_RESULT
OUTPUT_VARIABLE IPOE_KERNEL_RELEASE
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_QUIET
)
if (NOT IPOE_KERNEL_RELEASE_RESULT STREQUAL "0" OR IPOE_KERNEL_RELEASE STREQUAL "")
find_program(UNAME_EXECUTABLE uname)
if (UNAME_EXECUTABLE)
execute_process(
COMMAND ${UNAME_EXECUTABLE} -r
OUTPUT_VARIABLE IPOE_KERNEL_RELEASE
OUTPUT_STRIP_TRAILING_WHITESPACE
)
else()
set(IPOE_KERNEL_RELEASE "unknown")
endif()
endif()
ADD_CUSTOM_COMMAND(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/driver/ipoe.ko
COMMAND rm -rf ${CMAKE_CURRENT_BINARY_DIR}/driver
COMMAND mkdir ${CMAKE_CURRENT_BINARY_DIR}/driver
COMMAND ln -sf ${CMAKE_CURRENT_SOURCE_DIR}/* ${CMAKE_CURRENT_BINARY_DIR}/driver
COMMAND ln -sf ${CMAKE_BINARY_DIR}/version.h ${CMAKE_CURRENT_BINARY_DIR}/driver
COMMAND ${CMAKE_COMMAND} -E echo "[ 99%] Generating driver/ipoe.ko for kernel ${IPOE_KERNEL_RELEASE}"
COMMAND make -C ${KDIR} M=${CMAKE_CURRENT_BINARY_DIR}/driver modules
DEPENDS ipoe.c ipoe.h
)
ADD_CUSTOM_TARGET(ipoe_drv ALL
DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/driver/ipoe.ko
)
IF (NOT DEFINED CPACK_TYPE)
INSTALL(CODE "EXECUTE_PROCESS(COMMAND make -C ${KDIR} M=${CMAKE_CURRENT_BINARY_DIR}/drivers/ipoe modules_install)")
ENDIF()
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