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21 lines
900 B
21 lines
900 B
2 years ago
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include(ExternalProject)
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ExternalProject_Add(once
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DOWNLOAD_COMMAND ""
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CONFIGURE_COMMAND "${CMAKE_COMMAND}" -P ${CMAKE_CURRENT_BINARY_DIR}/once-configure.cmake
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BUILD_COMMAND "${CMAKE_COMMAND}" -P ${CMAKE_CURRENT_BINARY_DIR}/once-build.cmake
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INSTALL_COMMAND "${CMAKE_COMMAND}" -P ${CMAKE_CURRENT_BINARY_DIR}/once-install.cmake
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)
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ExternalProject_Add(always
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DEPENDS once
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DOWNLOAD_COMMAND ""
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CONFIGURE_COMMAND "${CMAKE_COMMAND}" -P ${CMAKE_CURRENT_BINARY_DIR}/always-configure.cmake
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BUILD_COMMAND "${CMAKE_COMMAND}" -P ${CMAKE_CURRENT_BINARY_DIR}/always-build.cmake
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COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${CMAKE_CURRENT_LIST_FILE}
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"${CMAKE_CURRENT_BINARY_DIR}/byproduct.txt"
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BUILD_BYPRODUCTS "${CMAKE_CURRENT_BINARY_DIR}/byproduct.txt"
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BUILD_ALWAYS 1
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INSTALL_COMMAND "${CMAKE_COMMAND}" -P ${CMAKE_CURRENT_BINARY_DIR}/always-install.cmake
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)
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