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project(testRebuild)
add_library(foo STATIC ${testRebuild_BINARY_DIR}/foo.cxx)
# Add a generated header that regenerates when the generator is
# rebuilt.
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/regen.h
COMMAND generator ${CMAKE_CURRENT_BINARY_DIR}/regen.h regen
DEPENDS generator # adds file-level dependency to re-run rule
)
# Add a generated header that does NOT regenerate when the generator
# is rebuilt.
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/noregen.h
COMMAND generator ${CMAKE_CURRENT_BINARY_DIR}/noregen.h noregen
)
# Test that the generator rebuilds when the static library source file
# changes. This should cause regen.h to be recreated also.
add_executable(generator generator.cxx)
target_link_libraries(generator foo)
# Build an executable to drive the build and rebuild.
include_directories(${CMAKE_CURRENT_BINARY_DIR})
add_executable(bar bar.cxx
${CMAKE_CURRENT_BINARY_DIR}/regen.h
${CMAKE_CURRENT_BINARY_DIR}/noregen.h
)
target_link_libraries(bar foo)
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