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add_custom_target(foobar
COMMAND ${CMAKE_COMMAND} -E copy
${CMAKE_CURRENT_SOURCE_DIR}/generated.h.in
${CMAKE_CURRENT_BINARY_DIR}/generated.h
)
add_custom_command(
OUTPUT generated.hpp
COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/generated.h
${CMAKE_CURRENT_BINARY_DIR}/generated.hpp
CODEGEN
)
add_custom_target(hpp_creator ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/generated.hpp)
# This test will fail if add_dependencies isn't account for in the
# codegen build graph
add_dependencies(hpp_creator foobar)
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